two version of R2R are hereHEAD master

author: S. Solomon Darnell 2025-03-28 21:52:21 -0500
committer: S. Solomon Darnell 2025-03-28 21:52:21 -0500
commit: 4a52a71956a8d46fcb7294ac71734504bb09bcc2 (patch)
tree: ee3dc5af3b6313e921cd920906356f5d4febc4ed /.venv/lib/python3.12/site-packages/future/backports/test
parent: cc961e04ba734dd72309fb548a2f97d67d578813 (diff)
download: gn-ai-master.tar.gz
18 files changed, 3023 insertions, 0 deletions
diff --git a/.venv/lib/python3.12/site-packages/future/backports/test/__init__.py b/.venv/lib/python3.12/site-packages/future/backports/test/__init__.py
new file mode 100644
index 00000000..0bba5e69
--- /dev/null
+++ b/.venv/lib/python3.12/site-packages/future/backports/test/__init__.py
@@ -0,0 +1,9 @@
+"""
+test package backported for python-future.
+
+Its primary purpose is to allow use of "import test.support" for running
+the Python standard library unit tests using the new Python 3 stdlib
+import location.
+
+Python 3 renamed test.test_support to test.support.
+"""
diff --git a/.venv/lib/python3.12/site-packages/future/backports/test/badcert.pem b/.venv/lib/python3.12/site-packages/future/backports/test/badcert.pem
new file mode 100644
index 00000000..c4191460
--- /dev/null
+++ b/.venv/lib/python3.12/site-packages/future/backports/test/badcert.pem
@@ -0,0 +1,36 @@
+-----BEGIN RSA PRIVATE KEY-----
+MIICXwIBAAKBgQC8ddrhm+LutBvjYcQlnH21PPIseJ1JVG2HMmN2CmZk2YukO+9L
+opdJhTvbGfEj0DQs1IE8M+kTUyOmuKfVrFMKwtVeCJphrAnhoz7TYOuLBSqt7lVH
+fhi/VwovESJlaBOp+WMnfhcduPEYHYx/6cnVapIkZnLt30zu2um+DzA9jQIDAQAB
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+oog58yeYO8BBqKKzpug0LXuQultYv2K4veaIO04iL9VLe5z9S/Q1jaCHBBuXAkEA
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+q6Gbf41Llo5sYAtmxdndTLASuHKecacTgZVhy0FryZpLKrU=
+-----END RSA PRIVATE KEY-----
+-----BEGIN CERTIFICATE-----
+Just bad cert data
+-----END CERTIFICATE-----
+-----BEGIN RSA PRIVATE KEY-----
+MIICXwIBAAKBgQC8ddrhm+LutBvjYcQlnH21PPIseJ1JVG2HMmN2CmZk2YukO+9L
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+q6Gbf41Llo5sYAtmxdndTLASuHKecacTgZVhy0FryZpLKrU=
+-----END RSA PRIVATE KEY-----
+-----BEGIN CERTIFICATE-----
+Just bad cert data
+-----END CERTIFICATE-----
diff --git a/.venv/lib/python3.12/site-packages/future/backports/test/badkey.pem b/.venv/lib/python3.12/site-packages/future/backports/test/badkey.pem
new file mode 100644
index 00000000..1c8a9557
--- /dev/null
+++ b/.venv/lib/python3.12/site-packages/future/backports/test/badkey.pem
@@ -0,0 +1,40 @@
+-----BEGIN RSA PRIVATE KEY-----
+Bad Key, though the cert should be OK
+-----END RSA PRIVATE KEY-----
+-----BEGIN CERTIFICATE-----
+MIICpzCCAhCgAwIBAgIJAP+qStv1cIGNMA0GCSqGSIb3DQEBBQUAMIGJMQswCQYD
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+iHkC6gGdBJhogs4=
+-----END CERTIFICATE-----
+-----BEGIN RSA PRIVATE KEY-----
+Bad Key, though the cert should be OK
+-----END RSA PRIVATE KEY-----
+-----BEGIN CERTIFICATE-----
+MIICpzCCAhCgAwIBAgIJAP+qStv1cIGNMA0GCSqGSIb3DQEBBQUAMIGJMQswCQYD
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+iHkC6gGdBJhogs4=
+-----END CERTIFICATE-----
diff --git a/.venv/lib/python3.12/site-packages/future/backports/test/dh512.pem b/.venv/lib/python3.12/site-packages/future/backports/test/dh512.pem
new file mode 100644
index 00000000..200d16cd
--- /dev/null
+++ b/.venv/lib/python3.12/site-packages/future/backports/test/dh512.pem
@@ -0,0 +1,9 @@
+-----BEGIN DH PARAMETERS-----
+MEYCQQD1Kv884bEpQBgRjXyEpwpy1obEAxnIByl6ypUM2Zafq9AKUJsCRtMIPWak
+XUGfnHy9iUsiGSa6q6Jew1XpKgVfAgEC
+-----END DH PARAMETERS-----
+
+These are the 512 bit DH parameters from "Assigned Number for SKIP Protocols"
+(http://www.skip-vpn.org/spec/numbers.html).
+See there for how they were generated.
+Note that g is not a generator, but this is not a problem since p is a safe prime.
diff --git a/.venv/lib/python3.12/site-packages/future/backports/test/https_svn_python_org_root.pem b/.venv/lib/python3.12/site-packages/future/backports/test/https_svn_python_org_root.pem
new file mode 100644
index 00000000..e7dfc829
--- /dev/null
+++ b/.venv/lib/python3.12/site-packages/future/backports/test/https_svn_python_org_root.pem
@@ -0,0 +1,41 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
diff --git a/.venv/lib/python3.12/site-packages/future/backports/test/keycert.passwd.pem b/.venv/lib/python3.12/site-packages/future/backports/test/keycert.passwd.pem
new file mode 100644
index 00000000..e9057488
--- /dev/null
+++ b/.venv/lib/python3.12/site-packages/future/backports/test/keycert.passwd.pem
@@ -0,0 +1,33 @@
+-----BEGIN RSA PRIVATE KEY-----
+Proc-Type: 4,ENCRYPTED
+DEK-Info: DES-EDE3-CBC,1A8D9D2A02EC698A
+
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+-----END RSA PRIVATE KEY-----
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
diff --git a/.venv/lib/python3.12/site-packages/future/backports/test/keycert.pem b/.venv/lib/python3.12/site-packages/future/backports/test/keycert.pem
new file mode 100644
index 00000000..64318aa2
--- /dev/null
+++ b/.venv/lib/python3.12/site-packages/future/backports/test/keycert.pem
@@ -0,0 +1,31 @@
+-----BEGIN PRIVATE KEY-----
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+SPIXQuT8RMPDVNQ=
+-----END PRIVATE KEY-----
+-----BEGIN CERTIFICATE-----
+MIICVDCCAb2gAwIBAgIJANfHOBkZr8JOMA0GCSqGSIb3DQEBBQUAMF8xCzAJBgNV
+BAYTAlhZMRcwFQYDVQQHEw5DYXN0bGUgQW50aHJheDEjMCEGA1UEChMaUHl0aG9u
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+BJ6+JcpIraopLn8BGhbjNWj40mmRqWB/NAWF6M5ne7KpGAu7tLeG4hb1zLaldK8G
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+CRlNBAAlvhKzO7Clpf9l0YKBEfraJByX
+-----END CERTIFICATE-----
diff --git a/.venv/lib/python3.12/site-packages/future/backports/test/keycert2.pem b/.venv/lib/python3.12/site-packages/future/backports/test/keycert2.pem
new file mode 100644
index 00000000..e8a9e082
--- /dev/null
+++ b/.venv/lib/python3.12/site-packages/future/backports/test/keycert2.pem
@@ -0,0 +1,31 @@
+-----BEGIN PRIVATE KEY-----
+MIICdwIBADANBgkqhkiG9w0BAQEFAASCAmEwggJdAgEAAoGBAJnsJZVrppL+W5I9
+zGQrrawWwE5QJpBK9nWw17mXrZ03R1cD9BamLGivVISbPlRlAVnZBEyh1ATpsB7d
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+HBn6MQ4VQasCD1F+7jWTI0FU/3vdw8non/Fj8hhYqZcCQQDCDRdvmZqDiZnpMqDq
+L6ZSrLTVtMvZXZbgwForaAD9uHj51TME7+eYT7EG2YCgJTXJ4YvRJEnPNyskwdKt
+vTSTAkEAtaaN/vyemEJ82BIGStwONNw0ILsSr5cZ9tBHzqiA/tipY+e36HRFiXhP
+QcU9zXlxyWkDH8iz9DSAmE2jbfoqwwJANlMJ65E543cjIlitGcKLMnvtCCLcKpb7
+xSG0XJB6Lo11OKPJ66jp0gcFTSCY1Lx2CXVd+gfJrfwI1Pp562+bhwJBAJ9IfDPU
+R8OpO9v1SGd8x33Owm7uXOpB9d63/T70AD1QOXjKUC4eXYbt0WWfWuny/RNPRuyh
+w7DXSfUF+kPKolU=
+-----END PRIVATE KEY-----
+-----BEGIN CERTIFICATE-----
+MIICXTCCAcagAwIBAgIJAIO3upAG445fMA0GCSqGSIb3DQEBBQUAMGIxCzAJBgNV
+BAYTAlhZMRcwFQYDVQQHEw5DYXN0bGUgQW50aHJheDEjMCEGA1UEChMaUHl0aG9u
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+FqYsaK9UhJs+VGUBWdkETKHUBOmwHt0JRD5YcS8Auq6/Hj5jDmX59d6JhGOstEFh
+m5XLzI21fNTeJZwY5txhGRR2Jd07I/uwsXZhkdG9BmnOAMEqSutp5DzXDbUCAwEA
+AaMbMBkwFwYDVR0RBBAwDoIMZmFrZWhvc3RuYW1lMA0GCSqGSIb3DQEBBQUAA4GB
+AH+iMClLLGSaKWgwXsmdVo4FhTZZHo8Uprrtg3N9FxEeE50btpDVQysgRt5ias3K
+m+bME9zbKwvbVWD5zZdjus4pDgzwF/iHyccL8JyYhxOvS/9zmvAtFXj/APIIbZFp
+IT75d9f88ScIGEtknZQejnrdhB64tYki/EqluiuKBqKD
+-----END CERTIFICATE-----
diff --git a/.venv/lib/python3.12/site-packages/future/backports/test/nokia.pem b/.venv/lib/python3.12/site-packages/future/backports/test/nokia.pem
new file mode 100644
index 00000000..0d044df4
--- /dev/null
+++ b/.venv/lib/python3.12/site-packages/future/backports/test/nokia.pem
@@ -0,0 +1,31 @@
+# Certificate for projects.developer.nokia.com:443 (see issue 13034)
+-----BEGIN CERTIFICATE-----
+MIIFLDCCBBSgAwIBAgIQLubqdkCgdc7lAF9NfHlUmjANBgkqhkiG9w0BAQUFADCB
+vDELMAkGA1UEBhMCVVMxFzAVBgNVBAoTDlZlcmlTaWduLCBJbmMuMR8wHQYDVQQL
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+MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCr92w1bpHYSYxUEx8N/8Iddda2
+lYi+aXNtQfV/l2Fw9Ykv3Ipw4nLeGTj18FFlAZgMdPRlgrzF/NNXGw/9l3/qKdow
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+ZGV2ZWxvcGVyLm5va2lhLmNvbYIYcHJvamVjdHMuZm9ydW0ubm9raWEuY29tMAkG
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+YS52ZXJpc2lnbi5jb20vU1ZSSW50bEczLmNlcjBuBggrBgEFBQcBDARiMGChXqBc
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+O5BsySTh56BWS6mQB07XVfxmYUGAvRQDA5QHpmY8jIlNwSmN3s8RKo+fAtiNRlcL
+x/mWSfuMs3D/S6ev3D6+dpEMZtjrhOdctsarMKp8n/hPbwhAbg5hVjpkW5n8vz2y
+0KxvvkA1AxpLwpVv7OlK17ttzIHw8bp9HTlHBU5s8bKz4a565V/a5HI0CSEv/+0y
+ko4/ghTnZc1CkmUngKKeFMSah/mT/xAh8XnE2l1AazFa8UKuYki1e+ArHaGZc4ix
+UYOtiRphwfuYQhRZ7qX9q2MMkCMI65XNK/SaFrAbbG0=
+-----END CERTIFICATE-----
diff --git a/.venv/lib/python3.12/site-packages/future/backports/test/nullbytecert.pem b/.venv/lib/python3.12/site-packages/future/backports/test/nullbytecert.pem
new file mode 100644
index 00000000..447186c9
--- /dev/null
+++ b/.venv/lib/python3.12/site-packages/future/backports/test/nullbytecert.pem
@@ -0,0 +1,90 @@
+Certificate:
+    Data:
+        Version: 3 (0x2)
+        Serial Number: 0 (0x0)
+    Signature Algorithm: sha1WithRSAEncryption
+        Issuer: C=US, ST=Oregon, L=Beaverton, O=Python Software Foundation, OU=Python Core Development, CN=null.python.org\x00example.org/emailAddress=python-dev@python.org
+        Validity
+            Not Before: Aug  7 13:11:52 2013 GMT
+            Not After : Aug  7 13:12:52 2013 GMT
+        Subject: C=US, ST=Oregon, L=Beaverton, O=Python Software Foundation, OU=Python Core Development, CN=null.python.org\x00example.org/emailAddress=python-dev@python.org
+        Subject Public Key Info:
+            Public Key Algorithm: rsaEncryption
+                Public-Key: (2048 bit)
+                Modulus:
+                    00:b5:ea:ed:c9:fb:46:7d:6f:3b:76:80:dd:3a:f3:
+                    03:94:0b:a7:a6:db:ec:1d:df:ff:23:74:08:9d:97:
+                    16:3f:a3:a4:7b:3e:1b:0e:96:59:25:03:a7:26:e2:
+                    88:a9:cf:79:cd:f7:04:56:b0:ab:79:32:6e:59:c1:
+                    32:30:54:eb:58:a8:cb:91:f0:42:a5:64:27:cb:d4:
+                    56:31:88:52:ad:cf:bd:7f:f0:06:64:1f:cc:27:b8:
+                    a3:8b:8c:f3:d8:29:1f:25:0b:f5:46:06:1b:ca:02:
+                    45:ad:7b:76:0a:9c:bf:bb:b9:ae:0d:16:ab:60:75:
+                    ae:06:3e:9c:7c:31:dc:92:2f:29:1a:e0:4b:0c:91:
+                    90:6c:e9:37:c5:90:d7:2a:d7:97:15:a3:80:8f:5d:
+                    7b:49:8f:54:30:d4:97:2c:1c:5b:37:b5:ab:69:30:
+                    68:43:d3:33:78:4b:02:60:f5:3c:44:80:a1:8f:e7:
+                    f0:0f:d1:5e:87:9e:46:cf:62:fc:f9:bf:0c:65:12:
+                    f1:93:c8:35:79:3f:c8:ec:ec:47:f5:ef:be:44:d5:
+                    ae:82:1e:2d:9a:9f:98:5a:67:65:e1:74:70:7c:cb:
+                    d3:c2:ce:0e:45:49:27:dc:e3:2d:d4:fb:48:0e:2f:
+                    9e:77:b8:14:46:c0:c4:36:ca:02:ae:6a:91:8c:da:
+                    2f:85
+                Exponent: 65537 (0x10001)
+        X509v3 extensions:
+            X509v3 Basic Constraints: critical
+                CA:FALSE
+            X509v3 Subject Key Identifier:
+                88:5A:55:C0:52:FF:61:CD:52:A3:35:0F:EA:5A:9C:24:38:22:F7:5C
+            X509v3 Key Usage:
+                Digital Signature, Non Repudiation, Key Encipherment
+            X509v3 Subject Alternative Name:
+                *************************************************************
+                WARNING: The values for DNS, email and URI are WRONG. OpenSSL
+                         doesn't print the text after a NULL byte.
+                *************************************************************
+                DNS:altnull.python.org, email:null@python.org, URI:http://null.python.org, IP Address:192.0.2.1, IP Address:2001:DB8:0:0:0:0:0:1
+    Signature Algorithm: sha1WithRSAEncryption
+         ac:4f:45:ef:7d:49:a8:21:70:8e:88:59:3e:d4:36:42:70:f5:
+         a3:bd:8b:d7:a8:d0:58:f6:31:4a:b1:a4:a6:dd:6f:d9:e8:44:
+         3c:b6:0a:71:d6:7f:b1:08:61:9d:60:ce:75:cf:77:0c:d2:37:
+         86:02:8d:5e:5d:f9:0f:71:b4:16:a8:c1:3d:23:1c:f1:11:b3:
+         56:6e:ca:d0:8d:34:94:e6:87:2a:99:f2:ae:ae:cc:c2:e8:86:
+         de:08:a8:7f:c5:05:fa:6f:81:a7:82:e6:d0:53:9d:34:f4:ac:
+         3e:40:fe:89:57:7a:29:a4:91:7e:0b:c6:51:31:e5:10:2f:a4:
+         60:76:cd:95:51:1a:be:8b:a1:b0:fd:ad:52:bd:d7:1b:87:60:
+         d2:31:c7:17:c4:18:4f:2d:08:25:a3:a7:4f:b7:92:ca:e2:f5:
+         25:f1:54:75:81:9d:b3:3d:61:a2:f7:da:ed:e1:c6:6f:2c:60:
+         1f:d8:6f:c5:92:05:ab:c9:09:62:49:a9:14:ad:55:11:cc:d6:
+         4a:19:94:99:97:37:1d:81:5f:8b:cf:a3:a8:96:44:51:08:3d:
+         0b:05:65:12:eb:b6:70:80:88:48:72:4f:c6:c2:da:cf:cd:8e:
+         5b:ba:97:2f:60:b4:96:56:49:5e:3a:43:76:63:04:be:2a:f6:
+         c1:ca:a9:94
+-----BEGIN CERTIFICATE-----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=
+-----END CERTIFICATE-----
diff --git a/.venv/lib/python3.12/site-packages/future/backports/test/nullcert.pem b/.venv/lib/python3.12/site-packages/future/backports/test/nullcert.pem
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/.venv/lib/python3.12/site-packages/future/backports/test/nullcert.pem
diff --git a/.venv/lib/python3.12/site-packages/future/backports/test/pystone.py b/.venv/lib/python3.12/site-packages/future/backports/test/pystone.py
new file mode 100644
index 00000000..7652027b
--- /dev/null
+++ b/.venv/lib/python3.12/site-packages/future/backports/test/pystone.py
@@ -0,0 +1,272 @@
+#!/usr/bin/env python3
+
+"""
+"PYSTONE" Benchmark Program
+
+Version:        Python/1.1 (corresponds to C/1.1 plus 2 Pystone fixes)
+
+Author:         Reinhold P. Weicker,  CACM Vol 27, No 10, 10/84 pg. 1013.
+
+                Translated from ADA to C by Rick Richardson.
+                Every method to preserve ADA-likeness has been used,
+                at the expense of C-ness.
+
+                Translated from C to Python by Guido van Rossum.
+
+Version History:
+
+                Version 1.1 corrects two bugs in version 1.0:
+
+                First, it leaked memory: in Proc1(), NextRecord ends
+                up having a pointer to itself.  I have corrected this
+                by zapping NextRecord.PtrComp at the end of Proc1().
+
+                Second, Proc3() used the operator != to compare a
+                record to None.  This is rather inefficient and not
+                true to the intention of the original benchmark (where
+                a pointer comparison to None is intended; the !=
+                operator attempts to find a method __cmp__ to do value
+                comparison of the record).  Version 1.1 runs 5-10
+                percent faster than version 1.0, so benchmark figures
+                of different versions can't be compared directly.
+
+"""
+
+from __future__ import print_function
+
+from time import clock
+
+LOOPS = 50000
+
+__version__ = "1.1"
+
+[Ident1, Ident2, Ident3, Ident4, Ident5] = range(1, 6)
+
+class Record(object):
+
+    def __init__(self, PtrComp = None, Discr = 0, EnumComp = 0,
+                       IntComp = 0, StringComp = 0):
+        self.PtrComp = PtrComp
+        self.Discr = Discr
+        self.EnumComp = EnumComp
+        self.IntComp = IntComp
+        self.StringComp = StringComp
+
+    def copy(self):
+        return Record(self.PtrComp, self.Discr, self.EnumComp,
+                      self.IntComp, self.StringComp)
+
+TRUE = 1
+FALSE = 0
+
+def main(loops=LOOPS):
+    benchtime, stones = pystones(loops)
+    print("Pystone(%s) time for %d passes = %g" % \
+          (__version__, loops, benchtime))
+    print("This machine benchmarks at %g pystones/second" % stones)
+
+
+def pystones(loops=LOOPS):
+    return Proc0(loops)
+
+IntGlob = 0
+BoolGlob = FALSE
+Char1Glob = '\0'
+Char2Glob = '\0'
+Array1Glob = [0]*51
+Array2Glob = [x[:] for x in [Array1Glob]*51]
+PtrGlb = None
+PtrGlbNext = None
+
+def Proc0(loops=LOOPS):
+    global IntGlob
+    global BoolGlob
+    global Char1Glob
+    global Char2Glob
+    global Array1Glob
+    global Array2Glob
+    global PtrGlb
+    global PtrGlbNext
+
+    starttime = clock()
+    for i in range(loops):
+        pass
+    nulltime = clock() - starttime
+
+    PtrGlbNext = Record()
+    PtrGlb = Record()
+    PtrGlb.PtrComp = PtrGlbNext
+    PtrGlb.Discr = Ident1
+    PtrGlb.EnumComp = Ident3
+    PtrGlb.IntComp = 40
+    PtrGlb.StringComp = "DHRYSTONE PROGRAM, SOME STRING"
+    String1Loc = "DHRYSTONE PROGRAM, 1'ST STRING"
+    Array2Glob[8][7] = 10
+
+    starttime = clock()
+
+    for i in range(loops):
+        Proc5()
+        Proc4()
+        IntLoc1 = 2
+        IntLoc2 = 3
+        String2Loc = "DHRYSTONE PROGRAM, 2'ND STRING"
+        EnumLoc = Ident2
+        BoolGlob = not Func2(String1Loc, String2Loc)
+        while IntLoc1 < IntLoc2:
+            IntLoc3 = 5 * IntLoc1 - IntLoc2
+            IntLoc3 = Proc7(IntLoc1, IntLoc2)
+            IntLoc1 = IntLoc1 + 1
+        Proc8(Array1Glob, Array2Glob, IntLoc1, IntLoc3)
+        PtrGlb = Proc1(PtrGlb)
+        CharIndex = 'A'
+        while CharIndex <= Char2Glob:
+            if EnumLoc == Func1(CharIndex, 'C'):
+                EnumLoc = Proc6(Ident1)
+            CharIndex = chr(ord(CharIndex)+1)
+        IntLoc3 = IntLoc2 * IntLoc1
+        IntLoc2 = IntLoc3 / IntLoc1
+        IntLoc2 = 7 * (IntLoc3 - IntLoc2) - IntLoc1
+        IntLoc1 = Proc2(IntLoc1)
+
+    benchtime = clock() - starttime - nulltime
+    if benchtime == 0.0:
+        loopsPerBenchtime = 0.0
+    else:
+        loopsPerBenchtime = (loops / benchtime)
+    return benchtime, loopsPerBenchtime
+
+def Proc1(PtrParIn):
+    PtrParIn.PtrComp = NextRecord = PtrGlb.copy()
+    PtrParIn.IntComp = 5
+    NextRecord.IntComp = PtrParIn.IntComp
+    NextRecord.PtrComp = PtrParIn.PtrComp
+    NextRecord.PtrComp = Proc3(NextRecord.PtrComp)
+    if NextRecord.Discr == Ident1:
+        NextRecord.IntComp = 6
+        NextRecord.EnumComp = Proc6(PtrParIn.EnumComp)
+        NextRecord.PtrComp = PtrGlb.PtrComp
+        NextRecord.IntComp = Proc7(NextRecord.IntComp, 10)
+    else:
+        PtrParIn = NextRecord.copy()
+    NextRecord.PtrComp = None
+    return PtrParIn
+
+def Proc2(IntParIO):
+    IntLoc = IntParIO + 10
+    while 1:
+        if Char1Glob == 'A':
+            IntLoc = IntLoc - 1
+            IntParIO = IntLoc - IntGlob
+            EnumLoc = Ident1
+        if EnumLoc == Ident1:
+            break
+    return IntParIO
+
+def Proc3(PtrParOut):
+    global IntGlob
+
+    if PtrGlb is not None:
+        PtrParOut = PtrGlb.PtrComp
+    else:
+        IntGlob = 100
+    PtrGlb.IntComp = Proc7(10, IntGlob)
+    return PtrParOut
+
+def Proc4():
+    global Char2Glob
+
+    BoolLoc = Char1Glob == 'A'
+    BoolLoc = BoolLoc or BoolGlob
+    Char2Glob = 'B'
+
+def Proc5():
+    global Char1Glob
+    global BoolGlob
+
+    Char1Glob = 'A'
+    BoolGlob = FALSE
+
+def Proc6(EnumParIn):
+    EnumParOut = EnumParIn
+    if not Func3(EnumParIn):
+        EnumParOut = Ident4
+    if EnumParIn == Ident1:
+        EnumParOut = Ident1
+    elif EnumParIn == Ident2:
+        if IntGlob > 100:
+            EnumParOut = Ident1
+        else:
+            EnumParOut = Ident4
+    elif EnumParIn == Ident3:
+        EnumParOut = Ident2
+    elif EnumParIn == Ident4:
+        pass
+    elif EnumParIn == Ident5:
+        EnumParOut = Ident3
+    return EnumParOut
+
+def Proc7(IntParI1, IntParI2):
+    IntLoc = IntParI1 + 2
+    IntParOut = IntParI2 + IntLoc
+    return IntParOut
+
+def Proc8(Array1Par, Array2Par, IntParI1, IntParI2):
+    global IntGlob
+
+    IntLoc = IntParI1 + 5
+    Array1Par[IntLoc] = IntParI2
+    Array1Par[IntLoc+1] = Array1Par[IntLoc]
+    Array1Par[IntLoc+30] = IntLoc
+    for IntIndex in range(IntLoc, IntLoc+2):
+        Array2Par[IntLoc][IntIndex] = IntLoc
+    Array2Par[IntLoc][IntLoc-1] = Array2Par[IntLoc][IntLoc-1] + 1
+    Array2Par[IntLoc+20][IntLoc] = Array1Par[IntLoc]
+    IntGlob = 5
+
+def Func1(CharPar1, CharPar2):
+    CharLoc1 = CharPar1
+    CharLoc2 = CharLoc1
+    if CharLoc2 != CharPar2:
+        return Ident1
+    else:
+        return Ident2
+
+def Func2(StrParI1, StrParI2):
+    IntLoc = 1
+    while IntLoc <= 1:
+        if Func1(StrParI1[IntLoc], StrParI2[IntLoc+1]) == Ident1:
+            CharLoc = 'A'
+            IntLoc = IntLoc + 1
+    if CharLoc >= 'W' and CharLoc <= 'Z':
+        IntLoc = 7
+    if CharLoc == 'X':
+        return TRUE
+    else:
+        if StrParI1 > StrParI2:
+            IntLoc = IntLoc + 7
+            return TRUE
+        else:
+            return FALSE
+
+def Func3(EnumParIn):
+    EnumLoc = EnumParIn
+    if EnumLoc == Ident3: return TRUE
+    return FALSE
+
+if __name__ == '__main__':
+    import sys
+    def error(msg):
+        print(msg, end=' ', file=sys.stderr)
+        print("usage: %s [number_of_loops]" % sys.argv[0], file=sys.stderr)
+        sys.exit(100)
+    nargs = len(sys.argv) - 1
+    if nargs > 1:
+        error("%d arguments are too many;" % nargs)
+    elif nargs == 1:
+        try: loops = int(sys.argv[1])
+        except ValueError:
+            error("Invalid argument %r;" % sys.argv[1])
+    else:
+        loops = LOOPS
+    main(loops)
diff --git a/.venv/lib/python3.12/site-packages/future/backports/test/sha256.pem b/.venv/lib/python3.12/site-packages/future/backports/test/sha256.pem
new file mode 100644
index 00000000..d3db4b85
--- /dev/null
+++ b/.venv/lib/python3.12/site-packages/future/backports/test/sha256.pem
@@ -0,0 +1,128 @@
+# Certificate chain for https://sha256.tbs-internet.com
+ 0 s:/C=FR/postalCode=14000/ST=Calvados/L=CAEN/street=22 rue de Bretagne/O=TBS INTERNET/OU=0002 440443810/OU=sha-256 production/CN=sha256.tbs-internet.com
+   i:/C=FR/ST=Calvados/L=Caen/O=TBS INTERNET/OU=Terms and Conditions: http://www.tbs-internet.com/CA/repository/OU=TBS INTERNET CA/CN=TBS X509 CA SGC
+-----BEGIN CERTIFICATE-----
+MIIGXDCCBUSgAwIBAgIRAKpVmHgg9nfCodAVwcP4siwwDQYJKoZIhvcNAQELBQAw
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+   i:/C=SE/O=AddTrust AB/OU=AddTrust External TTP Network/CN=AddTrust External CA Root
+-----BEGIN CERTIFICATE-----
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+KWss5nbZqSl9Mt3JNjy9rjXxEZ4du5A/EkdOjtd+D2JzHVImOBwYSf0wdJrE5SIv
+2MCN7ZF6TACPcn9d2t0bi0Vr591pl6jFVkwPDPafepE39peC4N1xaf92P2BNPM/3
+mfnGV/TJVTl4uix5yaaIK/QI
+-----END CERTIFICATE-----
diff --git a/.venv/lib/python3.12/site-packages/future/backports/test/ssl_cert.pem b/.venv/lib/python3.12/site-packages/future/backports/test/ssl_cert.pem
new file mode 100644
index 00000000..47a7d7e3
--- /dev/null
+++ b/.venv/lib/python3.12/site-packages/future/backports/test/ssl_cert.pem
@@ -0,0 +1,15 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/.venv/lib/python3.12/site-packages/future/backports/test/ssl_key.passwd.pem b/.venv/lib/python3.12/site-packages/future/backports/test/ssl_key.passwd.pem
new file mode 100644
index 00000000..2524672e
--- /dev/null
+++ b/.venv/lib/python3.12/site-packages/future/backports/test/ssl_key.passwd.pem
@@ -0,0 +1,18 @@
+-----BEGIN RSA PRIVATE KEY-----
+Proc-Type: 4,ENCRYPTED
+DEK-Info: DES-EDE3-CBC,1A8D9D2A02EC698A
+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+-----END RSA PRIVATE KEY-----
diff --git a/.venv/lib/python3.12/site-packages/future/backports/test/ssl_key.pem b/.venv/lib/python3.12/site-packages/future/backports/test/ssl_key.pem
new file mode 100644
index 00000000..3fd3bbd5
--- /dev/null
+++ b/.venv/lib/python3.12/site-packages/future/backports/test/ssl_key.pem
@@ -0,0 +1,16 @@
+-----BEGIN PRIVATE KEY-----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+-----END PRIVATE KEY-----
diff --git a/.venv/lib/python3.12/site-packages/future/backports/test/ssl_servers.py b/.venv/lib/python3.12/site-packages/future/backports/test/ssl_servers.py
new file mode 100644
index 00000000..87a3fb85
--- /dev/null
+++ b/.venv/lib/python3.12/site-packages/future/backports/test/ssl_servers.py
@@ -0,0 +1,207 @@
+from __future__ import absolute_import, division, print_function, unicode_literals
+from future.builtins import filter, str
+from future import utils
+import os
+import sys
+import ssl
+import pprint
+import socket
+from future.backports.urllib import parse as urllib_parse
+from future.backports.http.server import (HTTPServer as _HTTPServer,
+    SimpleHTTPRequestHandler, BaseHTTPRequestHandler)
+from future.backports.test import support
+threading = support.import_module("threading")
+
+here = os.path.dirname(__file__)
+
+HOST = support.HOST
+CERTFILE = os.path.join(here, 'keycert.pem')
+
+# This one's based on HTTPServer, which is based on SocketServer
+
+class HTTPSServer(_HTTPServer):
+
+    def __init__(self, server_address, handler_class, context):
+        _HTTPServer.__init__(self, server_address, handler_class)
+        self.context = context
+
+    def __str__(self):
+        return ('<%s %s:%s>' %
+                (self.__class__.__name__,
+                 self.server_name,
+                 self.server_port))
+
+    def get_request(self):
+        # override this to wrap socket with SSL
+        try:
+            sock, addr = self.socket.accept()
+            sslconn = self.context.wrap_socket(sock, server_side=True)
+        except socket.error as e:
+            # socket errors are silenced by the caller, print them here
+            if support.verbose:
+                sys.stderr.write("Got an error:\n%s\n" % e)
+            raise
+        return sslconn, addr
+
+class RootedHTTPRequestHandler(SimpleHTTPRequestHandler):
+    # need to override translate_path to get a known root,
+    # instead of using os.curdir, since the test could be
+    # run from anywhere
+
+    server_version = "TestHTTPS/1.0"
+    root = here
+    # Avoid hanging when a request gets interrupted by the client
+    timeout = 5
+
+    def translate_path(self, path):
+        """Translate a /-separated PATH to the local filename syntax.
+
+        Components that mean special things to the local file system
+        (e.g. drive or directory names) are ignored.  (XXX They should
+        probably be diagnosed.)
+
+        """
+        # abandon query parameters
+        path = urllib.parse.urlparse(path)[2]
+        path = os.path.normpath(urllib.parse.unquote(path))
+        words = path.split('/')
+        words = filter(None, words)
+        path = self.root
+        for word in words:
+            drive, word = os.path.splitdrive(word)
+            head, word = os.path.split(word)
+            path = os.path.join(path, word)
+        return path
+
+    def log_message(self, format, *args):
+        # we override this to suppress logging unless "verbose"
+        if support.verbose:
+            sys.stdout.write(" server (%s:%d %s):\n   [%s] %s\n" %
+                             (self.server.server_address,
+                              self.server.server_port,
+                              self.request.cipher(),
+                              self.log_date_time_string(),
+                              format%args))
+
+
+class StatsRequestHandler(BaseHTTPRequestHandler):
+    """Example HTTP request handler which returns SSL statistics on GET
+    requests.
+    """
+
+    server_version = "StatsHTTPS/1.0"
+
+    def do_GET(self, send_body=True):
+        """Serve a GET request."""
+        sock = self.rfile.raw._sock
+        context = sock.context
+        stats = {
+            'session_cache': context.session_stats(),
+            'cipher': sock.cipher(),
+            'compression': sock.compression(),
+            }
+        body = pprint.pformat(stats)
+        body = body.encode('utf-8')
+        self.send_response(200)
+        self.send_header("Content-type", "text/plain; charset=utf-8")
+        self.send_header("Content-Length", str(len(body)))
+        self.end_headers()
+        if send_body:
+            self.wfile.write(body)
+
+    def do_HEAD(self):
+        """Serve a HEAD request."""
+        self.do_GET(send_body=False)
+
+    def log_request(self, format, *args):
+        if support.verbose:
+            BaseHTTPRequestHandler.log_request(self, format, *args)
+
+
+class HTTPSServerThread(threading.Thread):
+
+    def __init__(self, context, host=HOST, handler_class=None):
+        self.flag = None
+        self.server = HTTPSServer((host, 0),
+                                  handler_class or RootedHTTPRequestHandler,
+                                  context)
+        self.port = self.server.server_port
+        threading.Thread.__init__(self)
+        self.daemon = True
+
+    def __str__(self):
+        return "<%s %s>" % (self.__class__.__name__, self.server)
+
+    def start(self, flag=None):
+        self.flag = flag
+        threading.Thread.start(self)
+
+    def run(self):
+        if self.flag:
+            self.flag.set()
+        try:
+            self.server.serve_forever(0.05)
+        finally:
+            self.server.server_close()
+
+    def stop(self):
+        self.server.shutdown()
+
+
+def make_https_server(case, certfile=CERTFILE, host=HOST, handler_class=None):
+    # we assume the certfile contains both private key and certificate
+    context = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
+    context.load_cert_chain(certfile)
+    server = HTTPSServerThread(context, host, handler_class)
+    flag = threading.Event()
+    server.start(flag)
+    flag.wait()
+    def cleanup():
+        if support.verbose:
+            sys.stdout.write('stopping HTTPS server\n')
+        server.stop()
+        if support.verbose:
+            sys.stdout.write('joining HTTPS thread\n')
+        server.join()
+    case.addCleanup(cleanup)
+    return server
+
+
+if __name__ == "__main__":
+    import argparse
+    parser = argparse.ArgumentParser(
+        description='Run a test HTTPS server. '
+                    'By default, the current directory is served.')
+    parser.add_argument('-p', '--port', type=int, default=4433,
+                        help='port to listen on (default: %(default)s)')
+    parser.add_argument('-q', '--quiet', dest='verbose', default=True,
+                        action='store_false', help='be less verbose')
+    parser.add_argument('-s', '--stats', dest='use_stats_handler', default=False,
+                        action='store_true', help='always return stats page')
+    parser.add_argument('--curve-name', dest='curve_name', type=str,
+                        action='store',
+                        help='curve name for EC-based Diffie-Hellman')
+    parser.add_argument('--dh', dest='dh_file', type=str, action='store',
+                        help='PEM file containing DH parameters')
+    args = parser.parse_args()
+
+    support.verbose = args.verbose
+    if args.use_stats_handler:
+        handler_class = StatsRequestHandler
+    else:
+        handler_class = RootedHTTPRequestHandler
+        if utils.PY2:
+            handler_class.root = os.getcwdu()
+        else:
+            handler_class.root = os.getcwd()
+    context = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
+    context.load_cert_chain(CERTFILE)
+    if args.curve_name:
+        context.set_ecdh_curve(args.curve_name)
+    if args.dh_file:
+        context.load_dh_params(args.dh_file)
+
+    server = HTTPSServer(("", args.port), handler_class, context)
+    if args.verbose:
+        print("Listening on https://localhost:{0.port}".format(args))
+    server.serve_forever(0.1)
diff --git a/.venv/lib/python3.12/site-packages/future/backports/test/support.py b/.venv/lib/python3.12/site-packages/future/backports/test/support.py
new file mode 100644
index 00000000..6639372b
--- /dev/null
+++ b/.venv/lib/python3.12/site-packages/future/backports/test/support.py
@@ -0,0 +1,2016 @@
+# -*- coding: utf-8 -*-
+"""Supporting definitions for the Python regression tests.
+
+Backported for python-future from Python 3.3 test/support.py.
+"""
+
+from __future__ import (absolute_import, division,
+                        print_function, unicode_literals)
+from future import utils
+from future.builtins import str, range, open, int, map, list
+
+import contextlib
+import errno
+import functools
+import gc
+import socket
+import sys
+import os
+import platform
+import shutil
+import warnings
+import unittest
+# For Python 2.6 compatibility:
+if not hasattr(unittest, 'skip'):
+    import unittest2 as unittest
+
+import importlib
+# import collections.abc    # not present on Py2.7
+import re
+import subprocess
+import time
+try:
+    import sysconfig
+except ImportError:
+    # sysconfig is not available on Python 2.6. Try using distutils.sysconfig instead:
+    from distutils import sysconfig
+import fnmatch
+import logging.handlers
+import struct
+import tempfile
+
+try:
+    if utils.PY3:
+        import _thread, threading
+    else:
+        import thread as _thread, threading
+except ImportError:
+    _thread = None
+    threading = None
+try:
+    import multiprocessing.process
+except ImportError:
+    multiprocessing = None
+
+try:
+    import zlib
+except ImportError:
+    zlib = None
+
+try:
+    import gzip
+except ImportError:
+    gzip = None
+
+try:
+    import bz2
+except ImportError:
+    bz2 = None
+
+try:
+    import lzma
+except ImportError:
+    lzma = None
+
+__all__ = [
+    "Error", "TestFailed", "ResourceDenied", "import_module", "verbose",
+    "use_resources", "max_memuse", "record_original_stdout",
+    "get_original_stdout", "unload", "unlink", "rmtree", "forget",
+    "is_resource_enabled", "requires", "requires_freebsd_version",
+    "requires_linux_version", "requires_mac_ver", "find_unused_port",
+    "bind_port", "IPV6_ENABLED", "is_jython", "TESTFN", "HOST", "SAVEDCWD",
+    "temp_cwd", "findfile", "create_empty_file", "sortdict",
+    "check_syntax_error", "open_urlresource", "check_warnings", "CleanImport",
+    "EnvironmentVarGuard", "TransientResource", "captured_stdout",
+    "captured_stdin", "captured_stderr", "time_out", "socket_peer_reset",
+    "ioerror_peer_reset", "run_with_locale", 'temp_umask',
+    "transient_internet", "set_memlimit", "bigmemtest", "bigaddrspacetest",
+    "BasicTestRunner", "run_unittest", "run_doctest", "threading_setup",
+    "threading_cleanup", "reap_children", "cpython_only", "check_impl_detail",
+    "get_attribute", "swap_item", "swap_attr", "requires_IEEE_754",
+    "TestHandler", "Matcher", "can_symlink", "skip_unless_symlink",
+    "skip_unless_xattr", "import_fresh_module", "requires_zlib",
+    "PIPE_MAX_SIZE", "failfast", "anticipate_failure", "run_with_tz",
+    "requires_gzip", "requires_bz2", "requires_lzma", "suppress_crash_popup",
+    ]
+
+class Error(Exception):
+    """Base class for regression test exceptions."""
+
+class TestFailed(Error):
+    """Test failed."""
+
+class ResourceDenied(unittest.SkipTest):
+    """Test skipped because it requested a disallowed resource.
+
+    This is raised when a test calls requires() for a resource that
+    has not be enabled.  It is used to distinguish between expected
+    and unexpected skips.
+    """
+
+@contextlib.contextmanager
+def _ignore_deprecated_imports(ignore=True):
+    """Context manager to suppress package and module deprecation
+    warnings when importing them.
+
+    If ignore is False, this context manager has no effect."""
+    if ignore:
+        with warnings.catch_warnings():
+            warnings.filterwarnings("ignore", ".+ (module|package)",
+                                    DeprecationWarning)
+            yield
+    else:
+        yield
+
+
+def import_module(name, deprecated=False):
+    """Import and return the module to be tested, raising SkipTest if
+    it is not available.
+
+    If deprecated is True, any module or package deprecation messages
+    will be suppressed."""
+    with _ignore_deprecated_imports(deprecated):
+        try:
+            return importlib.import_module(name)
+        except ImportError as msg:
+            raise unittest.SkipTest(str(msg))
+
+
+def _save_and_remove_module(name, orig_modules):
+    """Helper function to save and remove a module from sys.modules
+
+    Raise ImportError if the module can't be imported.
+    """
+    # try to import the module and raise an error if it can't be imported
+    if name not in sys.modules:
+        __import__(name)
+        del sys.modules[name]
+    for modname in list(sys.modules):
+        if modname == name or modname.startswith(name + '.'):
+            orig_modules[modname] = sys.modules[modname]
+            del sys.modules[modname]
+
+def _save_and_block_module(name, orig_modules):
+    """Helper function to save and block a module in sys.modules
+
+    Return True if the module was in sys.modules, False otherwise.
+    """
+    saved = True
+    try:
+        orig_modules[name] = sys.modules[name]
+    except KeyError:
+        saved = False
+    sys.modules[name] = None
+    return saved
+
+
+def anticipate_failure(condition):
+    """Decorator to mark a test that is known to be broken in some cases
+
+       Any use of this decorator should have a comment identifying the
+       associated tracker issue.
+    """
+    if condition:
+        return unittest.expectedFailure
+    return lambda f: f
+
+
+def import_fresh_module(name, fresh=(), blocked=(), deprecated=False):
+    """Import and return a module, deliberately bypassing sys.modules.
+    This function imports and returns a fresh copy of the named Python module
+    by removing the named module from sys.modules before doing the import.
+    Note that unlike reload, the original module is not affected by
+    this operation.
+
+    *fresh* is an iterable of additional module names that are also removed
+    from the sys.modules cache before doing the import.
+
+    *blocked* is an iterable of module names that are replaced with None
+    in the module cache during the import to ensure that attempts to import
+    them raise ImportError.
+
+    The named module and any modules named in the *fresh* and *blocked*
+    parameters are saved before starting the import and then reinserted into
+    sys.modules when the fresh import is complete.
+
+    Module and package deprecation messages are suppressed during this import
+    if *deprecated* is True.
+
+    This function will raise ImportError if the named module cannot be
+    imported.
+
+    If deprecated is True, any module or package deprecation messages
+    will be suppressed.
+    """
+    # NOTE: test_heapq, test_json and test_warnings include extra sanity checks
+    # to make sure that this utility function is working as expected
+    with _ignore_deprecated_imports(deprecated):
+        # Keep track of modules saved for later restoration as well
+        # as those which just need a blocking entry removed
+        orig_modules = {}
+        names_to_remove = []
+        _save_and_remove_module(name, orig_modules)
+        try:
+            for fresh_name in fresh:
+                _save_and_remove_module(fresh_name, orig_modules)
+            for blocked_name in blocked:
+                if not _save_and_block_module(blocked_name, orig_modules):
+                    names_to_remove.append(blocked_name)
+            fresh_module = importlib.import_module(name)
+        except ImportError:
+            fresh_module = None
+        finally:
+            for orig_name, module in orig_modules.items():
+                sys.modules[orig_name] = module
+            for name_to_remove in names_to_remove:
+                del sys.modules[name_to_remove]
+        return fresh_module
+
+
+def get_attribute(obj, name):
+    """Get an attribute, raising SkipTest if AttributeError is raised."""
+    try:
+        attribute = getattr(obj, name)
+    except AttributeError:
+        raise unittest.SkipTest("object %r has no attribute %r" % (obj, name))
+    else:
+        return attribute
+
+verbose = 1              # Flag set to 0 by regrtest.py
+use_resources = None     # Flag set to [] by regrtest.py
+max_memuse = 0           # Disable bigmem tests (they will still be run with
+                         # small sizes, to make sure they work.)
+real_max_memuse = 0
+failfast = False
+match_tests = None
+
+# _original_stdout is meant to hold stdout at the time regrtest began.
+# This may be "the real" stdout, or IDLE's emulation of stdout, or whatever.
+# The point is to have some flavor of stdout the user can actually see.
+_original_stdout = None
+def record_original_stdout(stdout):
+    global _original_stdout
+    _original_stdout = stdout
+
+def get_original_stdout():
+    return _original_stdout or sys.stdout
+
+def unload(name):
+    try:
+        del sys.modules[name]
+    except KeyError:
+        pass
+
+if sys.platform.startswith("win"):
+    def _waitfor(func, pathname, waitall=False):
+        # Perform the operation
+        func(pathname)
+        # Now setup the wait loop
+        if waitall:
+            dirname = pathname
+        else:
+            dirname, name = os.path.split(pathname)
+            dirname = dirname or '.'
+        # Check for `pathname` to be removed from the filesystem.
+        # The exponential backoff of the timeout amounts to a total
+        # of ~1 second after which the deletion is probably an error
+        # anyway.
+        # Testing on a i7@4.3GHz shows that usually only 1 iteration is
+        # required when contention occurs.
+        timeout = 0.001
+        while timeout < 1.0:
+            # Note we are only testing for the existence of the file(s) in
+            # the contents of the directory regardless of any security or
+            # access rights.  If we have made it this far, we have sufficient
+            # permissions to do that much using Python's equivalent of the
+            # Windows API FindFirstFile.
+            # Other Windows APIs can fail or give incorrect results when
+            # dealing with files that are pending deletion.
+            L = os.listdir(dirname)
+            if not (L if waitall else name in L):
+                return
+            # Increase the timeout and try again
+            time.sleep(timeout)
+            timeout *= 2
+        warnings.warn('tests may fail, delete still pending for ' + pathname,
+                      RuntimeWarning, stacklevel=4)
+
+    def _unlink(filename):
+        _waitfor(os.unlink, filename)
+
+    def _rmdir(dirname):
+        _waitfor(os.rmdir, dirname)
+
+    def _rmtree(path):
+        def _rmtree_inner(path):
+            for name in os.listdir(path):
+                fullname = os.path.join(path, name)
+                if os.path.isdir(fullname):
+                    _waitfor(_rmtree_inner, fullname, waitall=True)
+                    os.rmdir(fullname)
+                else:
+                    os.unlink(fullname)
+        _waitfor(_rmtree_inner, path, waitall=True)
+        _waitfor(os.rmdir, path)
+else:
+    _unlink = os.unlink
+    _rmdir = os.rmdir
+    _rmtree = shutil.rmtree
+
+def unlink(filename):
+    try:
+        _unlink(filename)
+    except OSError as error:
+        # The filename need not exist.
+        if error.errno not in (errno.ENOENT, errno.ENOTDIR):
+            raise
+
+def rmdir(dirname):
+    try:
+        _rmdir(dirname)
+    except OSError as error:
+        # The directory need not exist.
+        if error.errno != errno.ENOENT:
+            raise
+
+def rmtree(path):
+    try:
+        _rmtree(path)
+    except OSError as error:
+        if error.errno != errno.ENOENT:
+            raise
+
+
+# On some platforms, should not run gui test even if it is allowed
+# in `use_resources'.
+if sys.platform.startswith('win'):
+    import ctypes
+    import ctypes.wintypes
+    def _is_gui_available():
+        UOI_FLAGS = 1
+        WSF_VISIBLE = 0x0001
+        class USEROBJECTFLAGS(ctypes.Structure):
+            _fields_ = [("fInherit", ctypes.wintypes.BOOL),
+                        ("fReserved", ctypes.wintypes.BOOL),
+                        ("dwFlags", ctypes.wintypes.DWORD)]
+        dll = ctypes.windll.user32
+        h = dll.GetProcessWindowStation()
+        if not h:
+            raise ctypes.WinError()
+        uof = USEROBJECTFLAGS()
+        needed = ctypes.wintypes.DWORD()
+        res = dll.GetUserObjectInformationW(h,
+            UOI_FLAGS,
+            ctypes.byref(uof),
+            ctypes.sizeof(uof),
+            ctypes.byref(needed))
+        if not res:
+            raise ctypes.WinError()
+        return bool(uof.dwFlags & WSF_VISIBLE)
+else:
+    def _is_gui_available():
+        return True
+
+def is_resource_enabled(resource):
+    """Test whether a resource is enabled.  Known resources are set by
+    regrtest.py."""
+    return use_resources is not None and resource in use_resources
+
+def requires(resource, msg=None):
+    """Raise ResourceDenied if the specified resource is not available.
+
+    If the caller's module is __main__ then automatically return True.  The
+    possibility of False being returned occurs when regrtest.py is
+    executing.
+    """
+    if resource == 'gui' and not _is_gui_available():
+        raise unittest.SkipTest("Cannot use the 'gui' resource")
+    # see if the caller's module is __main__ - if so, treat as if
+    # the resource was set
+    if sys._getframe(1).f_globals.get("__name__") == "__main__":
+        return
+    if not is_resource_enabled(resource):
+        if msg is None:
+            msg = "Use of the %r resource not enabled" % resource
+        raise ResourceDenied(msg)
+
+def _requires_unix_version(sysname, min_version):
+    """Decorator raising SkipTest if the OS is `sysname` and the version is less
+    than `min_version`.
+
+    For example, @_requires_unix_version('FreeBSD', (7, 2)) raises SkipTest if
+    the FreeBSD version is less than 7.2.
+    """
+    def decorator(func):
+        @functools.wraps(func)
+        def wrapper(*args, **kw):
+            if platform.system() == sysname:
+                version_txt = platform.release().split('-', 1)[0]
+                try:
+                    version = tuple(map(int, version_txt.split('.')))
+                except ValueError:
+                    pass
+                else:
+                    if version < min_version:
+                        min_version_txt = '.'.join(map(str, min_version))
+                        raise unittest.SkipTest(
+                            "%s version %s or higher required, not %s"
+                            % (sysname, min_version_txt, version_txt))
+            return func(*args, **kw)
+        wrapper.min_version = min_version
+        return wrapper
+    return decorator
+
+def requires_freebsd_version(*min_version):
+    """Decorator raising SkipTest if the OS is FreeBSD and the FreeBSD version is
+    less than `min_version`.
+
+    For example, @requires_freebsd_version(7, 2) raises SkipTest if the FreeBSD
+    version is less than 7.2.
+    """
+    return _requires_unix_version('FreeBSD', min_version)
+
+def requires_linux_version(*min_version):
+    """Decorator raising SkipTest if the OS is Linux and the Linux version is
+    less than `min_version`.
+
+    For example, @requires_linux_version(2, 6, 32) raises SkipTest if the Linux
+    version is less than 2.6.32.
+    """
+    return _requires_unix_version('Linux', min_version)
+
+def requires_mac_ver(*min_version):
+    """Decorator raising SkipTest if the OS is Mac OS X and the OS X
+    version if less than min_version.
+
+    For example, @requires_mac_ver(10, 5) raises SkipTest if the OS X version
+    is lesser than 10.5.
+    """
+    def decorator(func):
+        @functools.wraps(func)
+        def wrapper(*args, **kw):
+            if sys.platform == 'darwin':
+                version_txt = platform.mac_ver()[0]
+                try:
+                    version = tuple(map(int, version_txt.split('.')))
+                except ValueError:
+                    pass
+                else:
+                    if version < min_version:
+                        min_version_txt = '.'.join(map(str, min_version))
+                        raise unittest.SkipTest(
+                            "Mac OS X %s or higher required, not %s"
+                            % (min_version_txt, version_txt))
+            return func(*args, **kw)
+        wrapper.min_version = min_version
+        return wrapper
+    return decorator
+
+# Don't use "localhost", since resolving it uses the DNS under recent
+# Windows versions (see issue #18792).
+HOST = "127.0.0.1"
+HOSTv6 = "::1"
+
+
+def find_unused_port(family=socket.AF_INET, socktype=socket.SOCK_STREAM):
+    """Returns an unused port that should be suitable for binding.  This is
+    achieved by creating a temporary socket with the same family and type as
+    the 'sock' parameter (default is AF_INET, SOCK_STREAM), and binding it to
+    the specified host address (defaults to 0.0.0.0) with the port set to 0,
+    eliciting an unused ephemeral port from the OS.  The temporary socket is
+    then closed and deleted, and the ephemeral port is returned.
+
+    Either this method or bind_port() should be used for any tests where a
+    server socket needs to be bound to a particular port for the duration of
+    the test.  Which one to use depends on whether the calling code is creating
+    a python socket, or if an unused port needs to be provided in a constructor
+    or passed to an external program (i.e. the -accept argument to openssl's
+    s_server mode).  Always prefer bind_port() over find_unused_port() where
+    possible.  Hard coded ports should *NEVER* be used.  As soon as a server
+    socket is bound to a hard coded port, the ability to run multiple instances
+    of the test simultaneously on the same host is compromised, which makes the
+    test a ticking time bomb in a buildbot environment. On Unix buildbots, this
+    may simply manifest as a failed test, which can be recovered from without
+    intervention in most cases, but on Windows, the entire python process can
+    completely and utterly wedge, requiring someone to log in to the buildbot
+    and manually kill the affected process.
+
+    (This is easy to reproduce on Windows, unfortunately, and can be traced to
+    the SO_REUSEADDR socket option having different semantics on Windows versus
+    Unix/Linux.  On Unix, you can't have two AF_INET SOCK_STREAM sockets bind,
+    listen and then accept connections on identical host/ports.  An EADDRINUSE
+    socket.error will be raised at some point (depending on the platform and
+    the order bind and listen were called on each socket).
+
+    However, on Windows, if SO_REUSEADDR is set on the sockets, no EADDRINUSE
+    will ever be raised when attempting to bind two identical host/ports. When
+    accept() is called on each socket, the second caller's process will steal
+    the port from the first caller, leaving them both in an awkwardly wedged
+    state where they'll no longer respond to any signals or graceful kills, and
+    must be forcibly killed via OpenProcess()/TerminateProcess().
+
+    The solution on Windows is to use the SO_EXCLUSIVEADDRUSE socket option
+    instead of SO_REUSEADDR, which effectively affords the same semantics as
+    SO_REUSEADDR on Unix.  Given the propensity of Unix developers in the Open
+    Source world compared to Windows ones, this is a common mistake.  A quick
+    look over OpenSSL's 0.9.8g source shows that they use SO_REUSEADDR when
+    openssl.exe is called with the 's_server' option, for example. See
+    http://bugs.python.org/issue2550 for more info.  The following site also
+    has a very thorough description about the implications of both REUSEADDR
+    and EXCLUSIVEADDRUSE on Windows:
+    http://msdn2.microsoft.com/en-us/library/ms740621(VS.85).aspx)
+
+    XXX: although this approach is a vast improvement on previous attempts to
+    elicit unused ports, it rests heavily on the assumption that the ephemeral
+    port returned to us by the OS won't immediately be dished back out to some
+    other process when we close and delete our temporary socket but before our
+    calling code has a chance to bind the returned port.  We can deal with this
+    issue if/when we come across it.
+    """
+
+    tempsock = socket.socket(family, socktype)
+    port = bind_port(tempsock)
+    tempsock.close()
+    del tempsock
+    return port
+
+def bind_port(sock, host=HOST):
+    """Bind the socket to a free port and return the port number.  Relies on
+    ephemeral ports in order to ensure we are using an unbound port.  This is
+    important as many tests may be running simultaneously, especially in a
+    buildbot environment.  This method raises an exception if the sock.family
+    is AF_INET and sock.type is SOCK_STREAM, *and* the socket has SO_REUSEADDR
+    or SO_REUSEPORT set on it.  Tests should *never* set these socket options
+    for TCP/IP sockets.  The only case for setting these options is testing
+    multicasting via multiple UDP sockets.
+
+    Additionally, if the SO_EXCLUSIVEADDRUSE socket option is available (i.e.
+    on Windows), it will be set on the socket.  This will prevent anyone else
+    from bind()'ing to our host/port for the duration of the test.
+    """
+
+    if sock.family == socket.AF_INET and sock.type == socket.SOCK_STREAM:
+        if hasattr(socket, 'SO_REUSEADDR'):
+            if sock.getsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR) == 1:
+                raise TestFailed("tests should never set the SO_REUSEADDR "   \
+                                 "socket option on TCP/IP sockets!")
+        if hasattr(socket, 'SO_REUSEPORT'):
+            try:
+                if sock.getsockopt(socket.SOL_SOCKET, socket.SO_REUSEPORT) == 1:
+                    raise TestFailed("tests should never set the SO_REUSEPORT "   \
+                                     "socket option on TCP/IP sockets!")
+            except socket.error:
+                # Python's socket module was compiled using modern headers
+                # thus defining SO_REUSEPORT but this process is running
+                # under an older kernel that does not support SO_REUSEPORT.
+                pass
+        if hasattr(socket, 'SO_EXCLUSIVEADDRUSE'):
+            sock.setsockopt(socket.SOL_SOCKET, socket.SO_EXCLUSIVEADDRUSE, 1)
+
+    sock.bind((host, 0))
+    port = sock.getsockname()[1]
+    return port
+
+def _is_ipv6_enabled():
+    """Check whether IPv6 is enabled on this host."""
+    if socket.has_ipv6:
+        sock = None
+        try:
+            sock = socket.socket(socket.AF_INET6, socket.SOCK_STREAM)
+            sock.bind(('::1', 0))
+            return True
+        except (socket.error, socket.gaierror):
+            pass
+        finally:
+            if sock:
+                sock.close()
+    return False
+
+IPV6_ENABLED = _is_ipv6_enabled()
+
+
+# A constant likely larger than the underlying OS pipe buffer size, to
+# make writes blocking.
+# Windows limit seems to be around 512 B, and many Unix kernels have a
+# 64 KiB pipe buffer size or 16 * PAGE_SIZE: take a few megs to be sure.
+# (see issue #17835 for a discussion of this number).
+PIPE_MAX_SIZE = 4 * 1024 * 1024 + 1
+
+# A constant likely larger than the underlying OS socket buffer size, to make
+# writes blocking.
+# The socket buffer sizes can usually be tuned system-wide (e.g. through sysctl
+# on Linux), or on a per-socket basis (SO_SNDBUF/SO_RCVBUF). See issue #18643
+# for a discussion of this number).
+SOCK_MAX_SIZE = 16 * 1024 * 1024 + 1
+
+# # decorator for skipping tests on non-IEEE 754 platforms
+# requires_IEEE_754 = unittest.skipUnless(
+#     float.__getformat__("double").startswith("IEEE"),
+#     "test requires IEEE 754 doubles")
+
+requires_zlib = unittest.skipUnless(zlib, 'requires zlib')
+
+requires_bz2 = unittest.skipUnless(bz2, 'requires bz2')
+
+requires_lzma = unittest.skipUnless(lzma, 'requires lzma')
+
+is_jython = sys.platform.startswith('java')
+
+# Filename used for testing
+if os.name == 'java':
+    # Jython disallows @ in module names
+    TESTFN = '$test'
+else:
+    TESTFN = '@test'
+
+# Disambiguate TESTFN for parallel testing, while letting it remain a valid
+# module name.
+TESTFN = "{0}_{1}_tmp".format(TESTFN, os.getpid())
+
+# # FS_NONASCII: non-ASCII character encodable by os.fsencode(),
+# # or None if there is no such character.
+# FS_NONASCII = None
+# for character in (
+#     # First try printable and common characters to have a readable filename.
+#     # For each character, the encoding list are just example of encodings able
+#     # to encode the character (the list is not exhaustive).
+#
+#     # U+00E6 (Latin Small Letter Ae): cp1252, iso-8859-1
+#     '\u00E6',
+#     # U+0130 (Latin Capital Letter I With Dot Above): cp1254, iso8859_3
+#     '\u0130',
+#     # U+0141 (Latin Capital Letter L With Stroke): cp1250, cp1257
+#     '\u0141',
+#     # U+03C6 (Greek Small Letter Phi): cp1253
+#     '\u03C6',
+#     # U+041A (Cyrillic Capital Letter Ka): cp1251
+#     '\u041A',
+#     # U+05D0 (Hebrew Letter Alef): Encodable to cp424
+#     '\u05D0',
+#     # U+060C (Arabic Comma): cp864, cp1006, iso8859_6, mac_arabic
+#     '\u060C',
+#     # U+062A (Arabic Letter Teh): cp720
+#     '\u062A',
+#     # U+0E01 (Thai Character Ko Kai): cp874
+#     '\u0E01',
+#
+#     # Then try more "special" characters. "special" because they may be
+#     # interpreted or displayed differently depending on the exact locale
+#     # encoding and the font.
+#
+#     # U+00A0 (No-Break Space)
+#     '\u00A0',
+#     # U+20AC (Euro Sign)
+#     '\u20AC',
+# ):
+#     try:
+#         os.fsdecode(os.fsencode(character))
+#     except UnicodeError:
+#         pass
+#     else:
+#         FS_NONASCII = character
+#         break
+#
+# # TESTFN_UNICODE is a non-ascii filename
+# TESTFN_UNICODE = TESTFN + "-\xe0\xf2\u0258\u0141\u011f"
+# if sys.platform == 'darwin':
+#     # In Mac OS X's VFS API file names are, by definition, canonically
+#     # decomposed Unicode, encoded using UTF-8. See QA1173:
+#     # http://developer.apple.com/mac/library/qa/qa2001/qa1173.html
+#     import unicodedata
+#     TESTFN_UNICODE = unicodedata.normalize('NFD', TESTFN_UNICODE)
+# TESTFN_ENCODING = sys.getfilesystemencoding()
+#
+# # TESTFN_UNENCODABLE is a filename (str type) that should *not* be able to be
+# # encoded by the filesystem encoding (in strict mode). It can be None if we
+# # cannot generate such filename.
+# TESTFN_UNENCODABLE = None
+# if os.name in ('nt', 'ce'):
+#     # skip win32s (0) or Windows 9x/ME (1)
+#     if sys.getwindowsversion().platform >= 2:
+#         # Different kinds of characters from various languages to minimize the
+#         # probability that the whole name is encodable to MBCS (issue #9819)
+#         TESTFN_UNENCODABLE = TESTFN + "-\u5171\u0141\u2661\u0363\uDC80"
+#         try:
+#             TESTFN_UNENCODABLE.encode(TESTFN_ENCODING)
+#         except UnicodeEncodeError:
+#             pass
+#         else:
+#             print('WARNING: The filename %r CAN be encoded by the filesystem encoding (%s). '
+#                   'Unicode filename tests may not be effective'
+#                   % (TESTFN_UNENCODABLE, TESTFN_ENCODING))
+#             TESTFN_UNENCODABLE = None
+# # Mac OS X denies unencodable filenames (invalid utf-8)
+# elif sys.platform != 'darwin':
+#     try:
+#         # ascii and utf-8 cannot encode the byte 0xff
+#         b'\xff'.decode(TESTFN_ENCODING)
+#     except UnicodeDecodeError:
+#         # 0xff will be encoded using the surrogate character u+DCFF
+#         TESTFN_UNENCODABLE = TESTFN \
+#             + b'-\xff'.decode(TESTFN_ENCODING, 'surrogateescape')
+#     else:
+#         # File system encoding (eg. ISO-8859-* encodings) can encode
+#         # the byte 0xff. Skip some unicode filename tests.
+#         pass
+#
+# # TESTFN_UNDECODABLE is a filename (bytes type) that should *not* be able to be
+# # decoded from the filesystem encoding (in strict mode). It can be None if we
+# # cannot generate such filename (ex: the latin1 encoding can decode any byte
+# # sequence). On UNIX, TESTFN_UNDECODABLE can be decoded by os.fsdecode() thanks
+# # to the surrogateescape error handler (PEP 383), but not from the filesystem
+# # encoding in strict mode.
+# TESTFN_UNDECODABLE = None
+# for name in (
+#     # b'\xff' is not decodable by os.fsdecode() with code page 932. Windows
+#     # accepts it to create a file or a directory, or don't accept to enter to
+#     # such directory (when the bytes name is used). So test b'\xe7' first: it is
+#     # not decodable from cp932.
+#     b'\xe7w\xf0',
+#     # undecodable from ASCII, UTF-8
+#     b'\xff',
+#     # undecodable from iso8859-3, iso8859-6, iso8859-7, cp424, iso8859-8, cp856
+#     # and cp857
+#     b'\xae\xd5'
+#     # undecodable from UTF-8 (UNIX and Mac OS X)
+#     b'\xed\xb2\x80', b'\xed\xb4\x80',
+#     # undecodable from shift_jis, cp869, cp874, cp932, cp1250, cp1251, cp1252,
+#     # cp1253, cp1254, cp1255, cp1257, cp1258
+#     b'\x81\x98',
+# ):
+#     try:
+#         name.decode(TESTFN_ENCODING)
+#     except UnicodeDecodeError:
+#         TESTFN_UNDECODABLE = os.fsencode(TESTFN) + name
+#         break
+#
+# if FS_NONASCII:
+#     TESTFN_NONASCII = TESTFN + '-' + FS_NONASCII
+# else:
+#     TESTFN_NONASCII = None
+
+# Save the initial cwd
+SAVEDCWD = os.getcwd()
+
+@contextlib.contextmanager
+def temp_cwd(name='tempcwd', quiet=False, path=None):
+    """
+    Context manager that temporarily changes the CWD.
+
+    An existing path may be provided as *path*, in which case this
+    function makes no changes to the file system.
+
+    Otherwise, the new CWD is created in the current directory and it's
+    named *name*. If *quiet* is False (default) and it's not possible to
+    create or change the CWD, an error is raised.  If it's True, only a
+    warning is raised and the original CWD is used.
+    """
+    saved_dir = os.getcwd()
+    is_temporary = False
+    if path is None:
+        path = name
+        try:
+            os.mkdir(name)
+            is_temporary = True
+        except OSError:
+            if not quiet:
+                raise
+            warnings.warn('tests may fail, unable to create temp CWD ' + name,
+                          RuntimeWarning, stacklevel=3)
+    try:
+        os.chdir(path)
+    except OSError:
+        if not quiet:
+            raise
+        warnings.warn('tests may fail, unable to change the CWD to ' + path,
+                      RuntimeWarning, stacklevel=3)
+    try:
+        yield os.getcwd()
+    finally:
+        os.chdir(saved_dir)
+        if is_temporary:
+            rmtree(name)
+
+
+if hasattr(os, "umask"):
+    @contextlib.contextmanager
+    def temp_umask(umask):
+        """Context manager that temporarily sets the process umask."""
+        oldmask = os.umask(umask)
+        try:
+            yield
+        finally:
+            os.umask(oldmask)
+
+
+def findfile(file, here=__file__, subdir=None):
+    """Try to find a file on sys.path and the working directory.  If it is not
+    found the argument passed to the function is returned (this does not
+    necessarily signal failure; could still be the legitimate path)."""
+    if os.path.isabs(file):
+        return file
+    if subdir is not None:
+        file = os.path.join(subdir, file)
+    path = sys.path
+    path = [os.path.dirname(here)] + path
+    for dn in path:
+        fn = os.path.join(dn, file)
+        if os.path.exists(fn): return fn
+    return file
+
+def create_empty_file(filename):
+    """Create an empty file. If the file already exists, truncate it."""
+    fd = os.open(filename, os.O_WRONLY | os.O_CREAT | os.O_TRUNC)
+    os.close(fd)
+
+def sortdict(dict):
+    "Like repr(dict), but in sorted order."
+    items = sorted(dict.items())
+    reprpairs = ["%r: %r" % pair for pair in items]
+    withcommas = ", ".join(reprpairs)
+    return "{%s}" % withcommas
+
+def make_bad_fd():
+    """
+    Create an invalid file descriptor by opening and closing a file and return
+    its fd.
+    """
+    file = open(TESTFN, "wb")
+    try:
+        return file.fileno()
+    finally:
+        file.close()
+        unlink(TESTFN)
+
+def check_syntax_error(testcase, statement):
+    testcase.assertRaises(SyntaxError, compile, statement,
+                          '<test string>', 'exec')
+
+def open_urlresource(url, *args, **kw):
+    from future.backports.urllib import (request as urllib_request,
+                                         parse as urllib_parse)
+
+    check = kw.pop('check', None)
+
+    filename = urllib_parse.urlparse(url)[2].split('/')[-1] # '/': it's URL!
+
+    fn = os.path.join(os.path.dirname(__file__), "data", filename)
+
+    def check_valid_file(fn):
+        f = open(fn, *args, **kw)
+        if check is None:
+            return f
+        elif check(f):
+            f.seek(0)
+            return f
+        f.close()
+
+    if os.path.exists(fn):
+        f = check_valid_file(fn)
+        if f is not None:
+            return f
+        unlink(fn)
+
+    # Verify the requirement before downloading the file
+    requires('urlfetch')
+
+    print('\tfetching %s ...' % url, file=get_original_stdout())
+    f = urllib_request.urlopen(url, timeout=15)
+    try:
+        with open(fn, "wb") as out:
+            s = f.read()
+            while s:
+                out.write(s)
+                s = f.read()
+    finally:
+        f.close()
+
+    f = check_valid_file(fn)
+    if f is not None:
+        return f
+    raise TestFailed('invalid resource %r' % fn)
+
+
+class WarningsRecorder(object):
+    """Convenience wrapper for the warnings list returned on
+       entry to the warnings.catch_warnings() context manager.
+    """
+    def __init__(self, warnings_list):
+        self._warnings = warnings_list
+        self._last = 0
+
+    def __getattr__(self, attr):
+        if len(self._warnings) > self._last:
+            return getattr(self._warnings[-1], attr)
+        elif attr in warnings.WarningMessage._WARNING_DETAILS:
+            return None
+        raise AttributeError("%r has no attribute %r" % (self, attr))
+
+    @property
+    def warnings(self):
+        return self._warnings[self._last:]
+
+    def reset(self):
+        self._last = len(self._warnings)
+
+
+def _filterwarnings(filters, quiet=False):
+    """Catch the warnings, then check if all the expected
+    warnings have been raised and re-raise unexpected warnings.
+    If 'quiet' is True, only re-raise the unexpected warnings.
+    """
+    # Clear the warning registry of the calling module
+    # in order to re-raise the warnings.
+    frame = sys._getframe(2)
+    registry = frame.f_globals.get('__warningregistry__')
+    if registry:
+        if utils.PY3:
+            registry.clear()
+        else:
+            # Py2-compatible:
+            for i in range(len(registry)):
+                registry.pop()
+    with warnings.catch_warnings(record=True) as w:
+        # Set filter "always" to record all warnings.  Because
+        # test_warnings swap the module, we need to look up in
+        # the sys.modules dictionary.
+        sys.modules['warnings'].simplefilter("always")
+        yield WarningsRecorder(w)
+    # Filter the recorded warnings
+    reraise = list(w)
+    missing = []
+    for msg, cat in filters:
+        seen = False
+        for w in reraise[:]:
+            warning = w.message
+            # Filter out the matching messages
+            if (re.match(msg, str(warning), re.I) and
+                issubclass(warning.__class__, cat)):
+                seen = True
+                reraise.remove(w)
+        if not seen and not quiet:
+            # This filter caught nothing
+            missing.append((msg, cat.__name__))
+    if reraise:
+        raise AssertionError("unhandled warning %s" % reraise[0])
+    if missing:
+        raise AssertionError("filter (%r, %s) did not catch any warning" %
+                             missing[0])
+
+
+@contextlib.contextmanager
+def check_warnings(*filters, **kwargs):
+    """Context manager to silence warnings.
+
+    Accept 2-tuples as positional arguments:
+        ("message regexp", WarningCategory)
+
+    Optional argument:
+     - if 'quiet' is True, it does not fail if a filter catches nothing
+        (default True without argument,
+         default False if some filters are defined)
+
+    Without argument, it defaults to:
+        check_warnings(("", Warning), quiet=True)
+    """
+    quiet = kwargs.get('quiet')
+    if not filters:
+        filters = (("", Warning),)
+        # Preserve backward compatibility
+        if quiet is None:
+            quiet = True
+    return _filterwarnings(filters, quiet)
+
+
+class CleanImport(object):
+    """Context manager to force import to return a new module reference.
+
+    This is useful for testing module-level behaviours, such as
+    the emission of a DeprecationWarning on import.
+
+    Use like this:
+
+        with CleanImport("foo"):
+            importlib.import_module("foo") # new reference
+    """
+
+    def __init__(self, *module_names):
+        self.original_modules = sys.modules.copy()
+        for module_name in module_names:
+            if module_name in sys.modules:
+                module = sys.modules[module_name]
+                # It is possible that module_name is just an alias for
+                # another module (e.g. stub for modules renamed in 3.x).
+                # In that case, we also need delete the real module to clear
+                # the import cache.
+                if module.__name__ != module_name:
+                    del sys.modules[module.__name__]
+                del sys.modules[module_name]
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, *ignore_exc):
+        sys.modules.update(self.original_modules)
+
+### Added for python-future:
+if utils.PY3:
+    import collections.abc
+    mybase = collections.abc.MutableMapping
+else:
+    import UserDict
+    mybase = UserDict.DictMixin
+###
+
+class EnvironmentVarGuard(mybase):
+
+    """Class to help protect the environment variable properly.  Can be used as
+    a context manager."""
+
+    def __init__(self):
+        self._environ = os.environ
+        self._changed = {}
+
+    def __getitem__(self, envvar):
+        return self._environ[envvar]
+
+    def __setitem__(self, envvar, value):
+        # Remember the initial value on the first access
+        if envvar not in self._changed:
+            self._changed[envvar] = self._environ.get(envvar)
+        self._environ[envvar] = value
+
+    def __delitem__(self, envvar):
+        # Remember the initial value on the first access
+        if envvar not in self._changed:
+            self._changed[envvar] = self._environ.get(envvar)
+        if envvar in self._environ:
+            del self._environ[envvar]
+
+    def keys(self):
+        return self._environ.keys()
+
+    def __iter__(self):
+        return iter(self._environ)
+
+    def __len__(self):
+        return len(self._environ)
+
+    def set(self, envvar, value):
+        self[envvar] = value
+
+    def unset(self, envvar):
+        del self[envvar]
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, *ignore_exc):
+        for (k, v) in self._changed.items():
+            if v is None:
+                if k in self._environ:
+                    del self._environ[k]
+            else:
+                self._environ[k] = v
+        os.environ = self._environ
+
+
+class DirsOnSysPath(object):
+    """Context manager to temporarily add directories to sys.path.
+
+    This makes a copy of sys.path, appends any directories given
+    as positional arguments, then reverts sys.path to the copied
+    settings when the context ends.
+
+    Note that *all* sys.path modifications in the body of the
+    context manager, including replacement of the object,
+    will be reverted at the end of the block.
+    """
+
+    def __init__(self, *paths):
+        self.original_value = sys.path[:]
+        self.original_object = sys.path
+        sys.path.extend(paths)
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, *ignore_exc):
+        sys.path = self.original_object
+        sys.path[:] = self.original_value
+
+
+class TransientResource(object):
+
+    """Raise ResourceDenied if an exception is raised while the context manager
+    is in effect that matches the specified exception and attributes."""
+
+    def __init__(self, exc, **kwargs):
+        self.exc = exc
+        self.attrs = kwargs
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, type_=None, value=None, traceback=None):
+        """If type_ is a subclass of self.exc and value has attributes matching
+        self.attrs, raise ResourceDenied.  Otherwise let the exception
+        propagate (if any)."""
+        if type_ is not None and issubclass(self.exc, type_):
+            for attr, attr_value in self.attrs.items():
+                if not hasattr(value, attr):
+                    break
+                if getattr(value, attr) != attr_value:
+                    break
+            else:
+                raise ResourceDenied("an optional resource is not available")
+
+# Context managers that raise ResourceDenied when various issues
+# with the Internet connection manifest themselves as exceptions.
+# XXX deprecate these and use transient_internet() instead
+time_out = TransientResource(IOError, errno=errno.ETIMEDOUT)
+socket_peer_reset = TransientResource(socket.error, errno=errno.ECONNRESET)
+ioerror_peer_reset = TransientResource(IOError, errno=errno.ECONNRESET)
+
+
+@contextlib.contextmanager
+def transient_internet(resource_name, timeout=30.0, errnos=()):
+    """Return a context manager that raises ResourceDenied when various issues
+    with the Internet connection manifest themselves as exceptions."""
+    default_errnos = [
+        ('ECONNREFUSED', 111),
+        ('ECONNRESET', 104),
+        ('EHOSTUNREACH', 113),
+        ('ENETUNREACH', 101),
+        ('ETIMEDOUT', 110),
+    ]
+    default_gai_errnos = [
+        ('EAI_AGAIN', -3),
+        ('EAI_FAIL', -4),
+        ('EAI_NONAME', -2),
+        ('EAI_NODATA', -5),
+        # Encountered when trying to resolve IPv6-only hostnames
+        ('WSANO_DATA', 11004),
+    ]
+
+    denied = ResourceDenied("Resource %r is not available" % resource_name)
+    captured_errnos = errnos
+    gai_errnos = []
+    if not captured_errnos:
+        captured_errnos = [getattr(errno, name, num)
+                           for (name, num) in default_errnos]
+        gai_errnos = [getattr(socket, name, num)
+                      for (name, num) in default_gai_errnos]
+
+    def filter_error(err):
+        n = getattr(err, 'errno', None)
+        if (isinstance(err, socket.timeout) or
+            (isinstance(err, socket.gaierror) and n in gai_errnos) or
+            n in captured_errnos):
+            if not verbose:
+                sys.stderr.write(denied.args[0] + "\n")
+            # Was: raise denied from err
+            # For Python-Future:
+            exc = denied
+            exc.__cause__ = err
+            raise exc
+
+    old_timeout = socket.getdefaulttimeout()
+    try:
+        if timeout is not None:
+            socket.setdefaulttimeout(timeout)
+        yield
+    except IOError as err:
+        # urllib can wrap original socket errors multiple times (!), we must
+        # unwrap to get at the original error.
+        while True:
+            a = err.args
+            if len(a) >= 1 and isinstance(a[0], IOError):
+                err = a[0]
+            # The error can also be wrapped as args[1]:
+            #    except socket.error as msg:
+            #        raise IOError('socket error', msg).with_traceback(sys.exc_info()[2])
+            elif len(a) >= 2 and isinstance(a[1], IOError):
+                err = a[1]
+            else:
+                break
+        filter_error(err)
+        raise
+    # XXX should we catch generic exceptions and look for their
+    # __cause__ or __context__?
+    finally:
+        socket.setdefaulttimeout(old_timeout)
+
+
+@contextlib.contextmanager
+def captured_output(stream_name):
+    """Return a context manager used by captured_stdout/stdin/stderr
+    that temporarily replaces the sys stream *stream_name* with a StringIO."""
+    import io
+    orig_stdout = getattr(sys, stream_name)
+    setattr(sys, stream_name, io.StringIO())
+    try:
+        yield getattr(sys, stream_name)
+    finally:
+        setattr(sys, stream_name, orig_stdout)
+
+def captured_stdout():
+    """Capture the output of sys.stdout:
+
+       with captured_stdout() as s:
+           print("hello")
+       self.assertEqual(s.getvalue(), "hello")
+    """
+    return captured_output("stdout")
+
+def captured_stderr():
+    return captured_output("stderr")
+
+def captured_stdin():
+    return captured_output("stdin")
+
+
+def gc_collect():
+    """Force as many objects as possible to be collected.
+
+    In non-CPython implementations of Python, this is needed because timely
+    deallocation is not guaranteed by the garbage collector.  (Even in CPython
+    this can be the case in case of reference cycles.)  This means that __del__
+    methods may be called later than expected and weakrefs may remain alive for
+    longer than expected.  This function tries its best to force all garbage
+    objects to disappear.
+    """
+    gc.collect()
+    if is_jython:
+        time.sleep(0.1)
+    gc.collect()
+    gc.collect()
+
+@contextlib.contextmanager
+def disable_gc():
+    have_gc = gc.isenabled()
+    gc.disable()
+    try:
+        yield
+    finally:
+        if have_gc:
+            gc.enable()
+
+
+def python_is_optimized():
+    """Find if Python was built with optimizations."""
+    # We don't have sysconfig on Py2.6:
+    import sysconfig
+    cflags = sysconfig.get_config_var('PY_CFLAGS') or ''
+    final_opt = ""
+    for opt in cflags.split():
+        if opt.startswith('-O'):
+            final_opt = opt
+    return final_opt != '' and final_opt != '-O0'
+
+
+_header = 'nP'
+_align = '0n'
+if hasattr(sys, "gettotalrefcount"):
+    _header = '2P' + _header
+    _align = '0P'
+_vheader = _header + 'n'
+
+def calcobjsize(fmt):
+    return struct.calcsize(_header + fmt + _align)
+
+def calcvobjsize(fmt):
+    return struct.calcsize(_vheader + fmt + _align)
+
+
+_TPFLAGS_HAVE_GC = 1<<14
+_TPFLAGS_HEAPTYPE = 1<<9
+
+def check_sizeof(test, o, size):
+    result = sys.getsizeof(o)
+    # add GC header size
+    if ((type(o) == type) and (o.__flags__ & _TPFLAGS_HEAPTYPE) or\
+        ((type(o) != type) and (type(o).__flags__ & _TPFLAGS_HAVE_GC))):
+        size += _testcapi.SIZEOF_PYGC_HEAD
+    msg = 'wrong size for %s: got %d, expected %d' \
+            % (type(o), result, size)
+    test.assertEqual(result, size, msg)
+
+#=======================================================================
+# Decorator for running a function in a different locale, correctly resetting
+# it afterwards.
+
+def run_with_locale(catstr, *locales):
+    def decorator(func):
+        def inner(*args, **kwds):
+            try:
+                import locale
+                category = getattr(locale, catstr)
+                orig_locale = locale.setlocale(category)
+            except AttributeError:
+                # if the test author gives us an invalid category string
+                raise
+            except:
+                # cannot retrieve original locale, so do nothing
+                locale = orig_locale = None
+            else:
+                for loc in locales:
+                    try:
+                        locale.setlocale(category, loc)
+                        break
+                    except:
+                        pass
+
+            # now run the function, resetting the locale on exceptions
+            try:
+                return func(*args, **kwds)
+            finally:
+                if locale and orig_locale:
+                    locale.setlocale(category, orig_locale)
+        inner.__name__ = func.__name__
+        inner.__doc__ = func.__doc__
+        return inner
+    return decorator
+
+#=======================================================================
+# Decorator for running a function in a specific timezone, correctly
+# resetting it afterwards.
+
+def run_with_tz(tz):
+    def decorator(func):
+        def inner(*args, **kwds):
+            try:
+                tzset = time.tzset
+            except AttributeError:
+                raise unittest.SkipTest("tzset required")
+            if 'TZ' in os.environ:
+                orig_tz = os.environ['TZ']
+            else:
+                orig_tz = None
+            os.environ['TZ'] = tz
+            tzset()
+
+            # now run the function, resetting the tz on exceptions
+            try:
+                return func(*args, **kwds)
+            finally:
+                if orig_tz is None:
+                    del os.environ['TZ']
+                else:
+                    os.environ['TZ'] = orig_tz
+                time.tzset()
+
+        inner.__name__ = func.__name__
+        inner.__doc__ = func.__doc__
+        return inner
+    return decorator
+
+#=======================================================================
+# Big-memory-test support. Separate from 'resources' because memory use
+# should be configurable.
+
+# Some handy shorthands. Note that these are used for byte-limits as well
+# as size-limits, in the various bigmem tests
+_1M = 1024*1024
+_1G = 1024 * _1M
+_2G = 2 * _1G
+_4G = 4 * _1G
+
+MAX_Py_ssize_t = sys.maxsize
+
+def set_memlimit(limit):
+    global max_memuse
+    global real_max_memuse
+    sizes = {
+        'k': 1024,
+        'm': _1M,
+        'g': _1G,
+        't': 1024*_1G,
+    }
+    m = re.match(r'(\d+(\.\d+)?) (K|M|G|T)b?$', limit,
+                 re.IGNORECASE | re.VERBOSE)
+    if m is None:
+        raise ValueError('Invalid memory limit %r' % (limit,))
+    memlimit = int(float(m.group(1)) * sizes[m.group(3).lower()])
+    real_max_memuse = memlimit
+    if memlimit > MAX_Py_ssize_t:
+        memlimit = MAX_Py_ssize_t
+    if memlimit < _2G - 1:
+        raise ValueError('Memory limit %r too low to be useful' % (limit,))
+    max_memuse = memlimit
+
+class _MemoryWatchdog(object):
+    """An object which periodically watches the process' memory consumption
+    and prints it out.
+    """
+
+    def __init__(self):
+        self.procfile = '/proc/{pid}/statm'.format(pid=os.getpid())
+        self.started = False
+
+    def start(self):
+        try:
+            f = open(self.procfile, 'r')
+        except OSError as e:
+            warnings.warn('/proc not available for stats: {0}'.format(e),
+                          RuntimeWarning)
+            sys.stderr.flush()
+            return
+
+        watchdog_script = findfile("memory_watchdog.py")
+        self.mem_watchdog = subprocess.Popen([sys.executable, watchdog_script],
+                                             stdin=f, stderr=subprocess.DEVNULL)
+        f.close()
+        self.started = True
+
+    def stop(self):
+        if self.started:
+            self.mem_watchdog.terminate()
+            self.mem_watchdog.wait()
+
+
+def bigmemtest(size, memuse, dry_run=True):
+    """Decorator for bigmem tests.
+
+    'minsize' is the minimum useful size for the test (in arbitrary,
+    test-interpreted units.) 'memuse' is the number of 'bytes per size' for
+    the test, or a good estimate of it.
+
+    if 'dry_run' is False, it means the test doesn't support dummy runs
+    when -M is not specified.
+    """
+    def decorator(f):
+        def wrapper(self):
+            size = wrapper.size
+            memuse = wrapper.memuse
+            if not real_max_memuse:
+                maxsize = 5147
+            else:
+                maxsize = size
+
+            if ((real_max_memuse or not dry_run)
+                and real_max_memuse < maxsize * memuse):
+                raise unittest.SkipTest(
+                    "not enough memory: %.1fG minimum needed"
+                    % (size * memuse / (1024 ** 3)))
+
+            if real_max_memuse and verbose:
+                print()
+                print(" ... expected peak memory use: {peak:.1f}G"
+                      .format(peak=size * memuse / (1024 ** 3)))
+                watchdog = _MemoryWatchdog()
+                watchdog.start()
+            else:
+                watchdog = None
+
+            try:
+                return f(self, maxsize)
+            finally:
+                if watchdog:
+                    watchdog.stop()
+
+        wrapper.size = size
+        wrapper.memuse = memuse
+        return wrapper
+    return decorator
+
+def bigaddrspacetest(f):
+    """Decorator for tests that fill the address space."""
+    def wrapper(self):
+        if max_memuse < MAX_Py_ssize_t:
+            if MAX_Py_ssize_t >= 2**63 - 1 and max_memuse >= 2**31:
+                raise unittest.SkipTest(
+                    "not enough memory: try a 32-bit build instead")
+            else:
+                raise unittest.SkipTest(
+                    "not enough memory: %.1fG minimum needed"
+                    % (MAX_Py_ssize_t / (1024 ** 3)))
+        else:
+            return f(self)
+    return wrapper
+
+#=======================================================================
+# unittest integration.
+
+class BasicTestRunner(object):
+    def run(self, test):
+        result = unittest.TestResult()
+        test(result)
+        return result
+
+def _id(obj):
+    return obj
+
+def requires_resource(resource):
+    if resource == 'gui' and not _is_gui_available():
+        return unittest.skip("resource 'gui' is not available")
+    if is_resource_enabled(resource):
+        return _id
+    else:
+        return unittest.skip("resource {0!r} is not enabled".format(resource))
+
+def cpython_only(test):
+    """
+    Decorator for tests only applicable on CPython.
+    """
+    return impl_detail(cpython=True)(test)
+
+def impl_detail(msg=None, **guards):
+    if check_impl_detail(**guards):
+        return _id
+    if msg is None:
+        guardnames, default = _parse_guards(guards)
+        if default:
+            msg = "implementation detail not available on {0}"
+        else:
+            msg = "implementation detail specific to {0}"
+        guardnames = sorted(guardnames.keys())
+        msg = msg.format(' or '.join(guardnames))
+    return unittest.skip(msg)
+
+def _parse_guards(guards):
+    # Returns a tuple ({platform_name: run_me}, default_value)
+    if not guards:
+        return ({'cpython': True}, False)
+    is_true = list(guards.values())[0]
+    assert list(guards.values()) == [is_true] * len(guards)   # all True or all False
+    return (guards, not is_true)
+
+# Use the following check to guard CPython's implementation-specific tests --
+# or to run them only on the implementation(s) guarded by the arguments.
+def check_impl_detail(**guards):
+    """This function returns True or False depending on the host platform.
+       Examples:
+          if check_impl_detail():               # only on CPython (default)
+          if check_impl_detail(jython=True):    # only on Jython
+          if check_impl_detail(cpython=False):  # everywhere except on CPython
+    """
+    guards, default = _parse_guards(guards)
+    return guards.get(platform.python_implementation().lower(), default)
+
+
+def no_tracing(func):
+    """Decorator to temporarily turn off tracing for the duration of a test."""
+    if not hasattr(sys, 'gettrace'):
+        return func
+    else:
+        @functools.wraps(func)
+        def wrapper(*args, **kwargs):
+            original_trace = sys.gettrace()
+            try:
+                sys.settrace(None)
+                return func(*args, **kwargs)
+            finally:
+                sys.settrace(original_trace)
+        return wrapper
+
+
+def refcount_test(test):
+    """Decorator for tests which involve reference counting.
+
+    To start, the decorator does not run the test if is not run by CPython.
+    After that, any trace function is unset during the test to prevent
+    unexpected refcounts caused by the trace function.
+
+    """
+    return no_tracing(cpython_only(test))
+
+
+def _filter_suite(suite, pred):
+    """Recursively filter test cases in a suite based on a predicate."""
+    newtests = []
+    for test in suite._tests:
+        if isinstance(test, unittest.TestSuite):
+            _filter_suite(test, pred)
+            newtests.append(test)
+        else:
+            if pred(test):
+                newtests.append(test)
+    suite._tests = newtests
+
+def _run_suite(suite):
+    """Run tests from a unittest.TestSuite-derived class."""
+    if verbose:
+        runner = unittest.TextTestRunner(sys.stdout, verbosity=2,
+                                         failfast=failfast)
+    else:
+        runner = BasicTestRunner()
+
+    result = runner.run(suite)
+    if not result.wasSuccessful():
+        if len(result.errors) == 1 and not result.failures:
+            err = result.errors[0][1]
+        elif len(result.failures) == 1 and not result.errors:
+            err = result.failures[0][1]
+        else:
+            err = "multiple errors occurred"
+            if not verbose: err += "; run in verbose mode for details"
+        raise TestFailed(err)
+
+
+def run_unittest(*classes):
+    """Run tests from unittest.TestCase-derived classes."""
+    valid_types = (unittest.TestSuite, unittest.TestCase)
+    suite = unittest.TestSuite()
+    for cls in classes:
+        if isinstance(cls, str):
+            if cls in sys.modules:
+                suite.addTest(unittest.findTestCases(sys.modules[cls]))
+            else:
+                raise ValueError("str arguments must be keys in sys.modules")
+        elif isinstance(cls, valid_types):
+            suite.addTest(cls)
+        else:
+            suite.addTest(unittest.makeSuite(cls))
+    def case_pred(test):
+        if match_tests is None:
+            return True
+        for name in test.id().split("."):
+            if fnmatch.fnmatchcase(name, match_tests):
+                return True
+        return False
+    _filter_suite(suite, case_pred)
+    _run_suite(suite)
+
+# We don't have sysconfig on Py2.6:
+# #=======================================================================
+# # Check for the presence of docstrings.
+#
+# HAVE_DOCSTRINGS = (check_impl_detail(cpython=False) or
+#                    sys.platform == 'win32' or
+#                    sysconfig.get_config_var('WITH_DOC_STRINGS'))
+#
+# requires_docstrings = unittest.skipUnless(HAVE_DOCSTRINGS,
+#                                           "test requires docstrings")
+#
+#
+# #=======================================================================
+# doctest driver.
+
+def run_doctest(module, verbosity=None, optionflags=0):
+    """Run doctest on the given module.  Return (#failures, #tests).
+
+    If optional argument verbosity is not specified (or is None), pass
+    support's belief about verbosity on to doctest.  Else doctest's
+    usual behavior is used (it searches sys.argv for -v).
+    """
+
+    import doctest
+
+    if verbosity is None:
+        verbosity = verbose
+    else:
+        verbosity = None
+
+    f, t = doctest.testmod(module, verbose=verbosity, optionflags=optionflags)
+    if f:
+        raise TestFailed("%d of %d doctests failed" % (f, t))
+    if verbose:
+        print('doctest (%s) ... %d tests with zero failures' %
+              (module.__name__, t))
+    return f, t
+
+
+#=======================================================================
+# Support for saving and restoring the imported modules.
+
+def modules_setup():
+    return sys.modules.copy(),
+
+def modules_cleanup(oldmodules):
+    # Encoders/decoders are registered permanently within the internal
+    # codec cache. If we destroy the corresponding modules their
+    # globals will be set to None which will trip up the cached functions.
+    encodings = [(k, v) for k, v in sys.modules.items()
+                 if k.startswith('encodings.')]
+    # Was:
+    # sys.modules.clear()
+    # Py2-compatible:
+    for i in range(len(sys.modules)):
+        sys.modules.pop()
+
+    sys.modules.update(encodings)
+    # XXX: This kind of problem can affect more than just encodings. In particular
+    # extension modules (such as _ssl) don't cope with reloading properly.
+    # Really, test modules should be cleaning out the test specific modules they
+    # know they added (ala test_runpy) rather than relying on this function (as
+    # test_importhooks and test_pkg do currently).
+    # Implicitly imported *real* modules should be left alone (see issue 10556).
+    sys.modules.update(oldmodules)
+
+#=======================================================================
+# Backported versions of threading_setup() and threading_cleanup() which don't refer
+# to threading._dangling (not available on Py2.7).
+
+# Threading support to prevent reporting refleaks when running regrtest.py -R
+
+# NOTE: we use thread._count() rather than threading.enumerate() (or the
+# moral equivalent thereof) because a threading.Thread object is still alive
+# until its __bootstrap() method has returned, even after it has been
+# unregistered from the threading module.
+# thread._count(), on the other hand, only gets decremented *after* the
+# __bootstrap() method has returned, which gives us reliable reference counts
+# at the end of a test run.
+
+def threading_setup():
+    if _thread:
+        return _thread._count(),
+    else:
+        return 1,
+
+def threading_cleanup(nb_threads):
+    if not _thread:
+        return
+
+    _MAX_COUNT = 10
+    for count in range(_MAX_COUNT):
+        n = _thread._count()
+        if n == nb_threads:
+            break
+        time.sleep(0.1)
+    # XXX print a warning in case of failure?
+
+def reap_threads(func):
+    """Use this function when threads are being used.  This will
+    ensure that the threads are cleaned up even when the test fails.
+    If threading is unavailable this function does nothing.
+    """
+    if not _thread:
+        return func
+
+    @functools.wraps(func)
+    def decorator(*args):
+        key = threading_setup()
+        try:
+            return func(*args)
+        finally:
+            threading_cleanup(*key)
+    return decorator
+
+def reap_children():
+    """Use this function at the end of test_main() whenever sub-processes
+    are started.  This will help ensure that no extra children (zombies)
+    stick around to hog resources and create problems when looking
+    for refleaks.
+    """
+
+    # Reap all our dead child processes so we don't leave zombies around.
+    # These hog resources and might be causing some of the buildbots to die.
+    if hasattr(os, 'waitpid'):
+        any_process = -1
+        while True:
+            try:
+                # This will raise an exception on Windows.  That's ok.
+                pid, status = os.waitpid(any_process, os.WNOHANG)
+                if pid == 0:
+                    break
+            except:
+                break
+
+@contextlib.contextmanager
+def swap_attr(obj, attr, new_val):
+    """Temporary swap out an attribute with a new object.
+
+    Usage:
+        with swap_attr(obj, "attr", 5):
+            ...
+
+        This will set obj.attr to 5 for the duration of the with: block,
+        restoring the old value at the end of the block. If `attr` doesn't
+        exist on `obj`, it will be created and then deleted at the end of the
+        block.
+    """
+    if hasattr(obj, attr):
+        real_val = getattr(obj, attr)
+        setattr(obj, attr, new_val)
+        try:
+            yield
+        finally:
+            setattr(obj, attr, real_val)
+    else:
+        setattr(obj, attr, new_val)
+        try:
+            yield
+        finally:
+            delattr(obj, attr)
+
+@contextlib.contextmanager
+def swap_item(obj, item, new_val):
+    """Temporary swap out an item with a new object.
+
+    Usage:
+        with swap_item(obj, "item", 5):
+            ...
+
+        This will set obj["item"] to 5 for the duration of the with: block,
+        restoring the old value at the end of the block. If `item` doesn't
+        exist on `obj`, it will be created and then deleted at the end of the
+        block.
+    """
+    if item in obj:
+        real_val = obj[item]
+        obj[item] = new_val
+        try:
+            yield
+        finally:
+            obj[item] = real_val
+    else:
+        obj[item] = new_val
+        try:
+            yield
+        finally:
+            del obj[item]
+
+def strip_python_stderr(stderr):
+    """Strip the stderr of a Python process from potential debug output
+    emitted by the interpreter.
+
+    This will typically be run on the result of the communicate() method
+    of a subprocess.Popen object.
+    """
+    stderr = re.sub(br"\[\d+ refs\]\r?\n?", b"", stderr).strip()
+    return stderr
+
+def args_from_interpreter_flags():
+    """Return a list of command-line arguments reproducing the current
+    settings in sys.flags and sys.warnoptions."""
+    return subprocess._args_from_interpreter_flags()
+
+#============================================================
+# Support for assertions about logging.
+#============================================================
+
+class TestHandler(logging.handlers.BufferingHandler):
+    def __init__(self, matcher):
+        # BufferingHandler takes a "capacity" argument
+        # so as to know when to flush. As we're overriding
+        # shouldFlush anyway, we can set a capacity of zero.
+        # You can call flush() manually to clear out the
+        # buffer.
+        logging.handlers.BufferingHandler.__init__(self, 0)
+        self.matcher = matcher
+
+    def shouldFlush(self):
+        return False
+
+    def emit(self, record):
+        self.format(record)
+        self.buffer.append(record.__dict__)
+
+    def matches(self, **kwargs):
+        """
+        Look for a saved dict whose keys/values match the supplied arguments.
+        """
+        result = False
+        for d in self.buffer:
+            if self.matcher.matches(d, **kwargs):
+                result = True
+                break
+        return result
+
+class Matcher(object):
+
+    _partial_matches = ('msg', 'message')
+
+    def matches(self, d, **kwargs):
+        """
+        Try to match a single dict with the supplied arguments.
+
+        Keys whose values are strings and which are in self._partial_matches
+        will be checked for partial (i.e. substring) matches. You can extend
+        this scheme to (for example) do regular expression matching, etc.
+        """
+        result = True
+        for k in kwargs:
+            v = kwargs[k]
+            dv = d.get(k)
+            if not self.match_value(k, dv, v):
+                result = False
+                break
+        return result
+
+    def match_value(self, k, dv, v):
+        """
+        Try to match a single stored value (dv) with a supplied value (v).
+        """
+        if type(v) != type(dv):
+            result = False
+        elif type(dv) is not str or k not in self._partial_matches:
+            result = (v == dv)
+        else:
+            result = dv.find(v) >= 0
+        return result
+
+
+_can_symlink = None
+def can_symlink():
+    global _can_symlink
+    if _can_symlink is not None:
+        return _can_symlink
+    symlink_path = TESTFN + "can_symlink"
+    try:
+        os.symlink(TESTFN, symlink_path)
+        can = True
+    except (OSError, NotImplementedError, AttributeError):
+        can = False
+    else:
+        os.remove(symlink_path)
+    _can_symlink = can
+    return can
+
+def skip_unless_symlink(test):
+    """Skip decorator for tests that require functional symlink"""
+    ok = can_symlink()
+    msg = "Requires functional symlink implementation"
+    return test if ok else unittest.skip(msg)(test)
+
+_can_xattr = None
+def can_xattr():
+    global _can_xattr
+    if _can_xattr is not None:
+        return _can_xattr
+    if not hasattr(os, "setxattr"):
+        can = False
+    else:
+        tmp_fp, tmp_name = tempfile.mkstemp()
+        try:
+            with open(TESTFN, "wb") as fp:
+                try:
+                    # TESTFN & tempfile may use different file systems with
+                    # different capabilities
+                    os.setxattr(tmp_fp, b"user.test", b"")
+                    os.setxattr(fp.fileno(), b"user.test", b"")
+                    # Kernels < 2.6.39 don't respect setxattr flags.
+                    kernel_version = platform.release()
+                    m = re.match("2.6.(\d{1,2})", kernel_version)
+                    can = m is None or int(m.group(1)) >= 39
+                except OSError:
+                    can = False
+        finally:
+            unlink(TESTFN)
+            unlink(tmp_name)
+    _can_xattr = can
+    return can
+
+def skip_unless_xattr(test):
+    """Skip decorator for tests that require functional extended attributes"""
+    ok = can_xattr()
+    msg = "no non-broken extended attribute support"
+    return test if ok else unittest.skip(msg)(test)
+
+
+if sys.platform.startswith('win'):
+    @contextlib.contextmanager
+    def suppress_crash_popup():
+        """Disable Windows Error Reporting dialogs using SetErrorMode."""
+        # see http://msdn.microsoft.com/en-us/library/windows/desktop/ms680621%28v=vs.85%29.aspx
+        # GetErrorMode is not available on Windows XP and Windows Server 2003,
+        # but SetErrorMode returns the previous value, so we can use that
+        import ctypes
+        k32 = ctypes.windll.kernel32
+        SEM_NOGPFAULTERRORBOX = 0x02
+        old_error_mode = k32.SetErrorMode(SEM_NOGPFAULTERRORBOX)
+        k32.SetErrorMode(old_error_mode | SEM_NOGPFAULTERRORBOX)
+        try:
+            yield
+        finally:
+            k32.SetErrorMode(old_error_mode)
+else:
+    # this is a no-op for other platforms
+    @contextlib.contextmanager
+    def suppress_crash_popup():
+        yield
+
+
+def patch(test_instance, object_to_patch, attr_name, new_value):
+    """Override 'object_to_patch'.'attr_name' with 'new_value'.
+
+    Also, add a cleanup procedure to 'test_instance' to restore
+    'object_to_patch' value for 'attr_name'.
+    The 'attr_name' should be a valid attribute for 'object_to_patch'.
+
+    """
+    # check that 'attr_name' is a real attribute for 'object_to_patch'
+    # will raise AttributeError if it does not exist
+    getattr(object_to_patch, attr_name)
+
+    # keep a copy of the old value
+    attr_is_local = False
+    try:
+        old_value = object_to_patch.__dict__[attr_name]
+    except (AttributeError, KeyError):
+        old_value = getattr(object_to_patch, attr_name, None)
+    else:
+        attr_is_local = True
+
+    # restore the value when the test is done
+    def cleanup():
+        if attr_is_local:
+            setattr(object_to_patch, attr_name, old_value)
+        else:
+            delattr(object_to_patch, attr_name)
+
+    test_instance.addCleanup(cleanup)
+
+    # actually override the attribute
+    setattr(object_to_patch, attr_name, new_value)
author	S. Solomon Darnell	2025-03-28 21:52:21 -0500
committer	S. Solomon Darnell	2025-03-28 21:52:21 -0500
commit	4a52a71956a8d46fcb7294ac71734504bb09bcc2 (patch)
tree	ee3dc5af3b6313e921cd920906356f5d4febc4ed /.venv/lib/python3.12/site-packages/future/backports/test
parent	cc961e04ba734dd72309fb548a2f97d67d578813 (diff)
download	gn-ai-master.tar.gz