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authorS. Solomon Darnell2025-03-28 21:52:21 -0500
committerS. Solomon Darnell2025-03-28 21:52:21 -0500
commit4a52a71956a8d46fcb7294ac71734504bb09bcc2 (patch)
treeee3dc5af3b6313e921cd920906356f5d4febc4ed /.venv/lib/python3.12/site-packages/future/builtins/misc.py
parentcc961e04ba734dd72309fb548a2f97d67d578813 (diff)
downloadgn-ai-master.tar.gz
two version of R2R are hereHEADmaster
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+"""
+A module that brings in equivalents of various modified Python 3 builtins
+into Py2. Has no effect on Py3.
+
+The builtin functions are:
+
+- ``ascii`` (from Py2's future_builtins module)
+- ``hex`` (from Py2's future_builtins module)
+- ``oct`` (from Py2's future_builtins module)
+- ``chr`` (equivalent to ``unichr`` on Py2)
+- ``input`` (equivalent to ``raw_input`` on Py2)
+- ``next`` (calls ``__next__`` if it exists, else ``next`` method)
+- ``open`` (equivalent to io.open on Py2)
+- ``super`` (backport of Py3's magic zero-argument super() function
+- ``round`` (new "Banker's Rounding" behaviour from Py3)
+- ``max`` (new default option from Py3.4)
+- ``min`` (new default option from Py3.4)
+
+``isinstance`` is also currently exported for backwards compatibility
+with v0.8.2, although this has been deprecated since v0.9.
+
+
+input()
+-------
+Like the new ``input()`` function from Python 3 (without eval()), except
+that it returns bytes. Equivalent to Python 2's ``raw_input()``.
+
+Warning: By default, importing this module *removes* the old Python 2
+input() function entirely from ``__builtin__`` for safety. This is
+because forgetting to import the new ``input`` from ``future`` might
+otherwise lead to a security vulnerability (shell injection) on Python 2.
+
+To restore it, you can retrieve it yourself from
+``__builtin__._old_input``.
+
+Fortunately, ``input()`` seems to be seldom used in the wild in Python
+2...
+
+"""
+
+from future import utils
+
+
+if utils.PY2:
+ from io import open
+ from future_builtins import ascii, oct, hex
+ from __builtin__ import unichr as chr, pow as _builtin_pow
+ import __builtin__
+
+ # Only for backward compatibility with future v0.8.2:
+ isinstance = __builtin__.isinstance
+
+ # Warning: Python 2's input() is unsafe and MUST not be able to be used
+ # accidentally by someone who expects Python 3 semantics but forgets
+ # to import it on Python 2. Versions of ``future`` prior to 0.11
+ # deleted it from __builtin__. Now we keep in __builtin__ but shadow
+ # the name like all others. Just be sure to import ``input``.
+
+ input = raw_input
+
+ from future.builtins.newnext import newnext as next
+ from future.builtins.newround import newround as round
+ from future.builtins.newsuper import newsuper as super
+ from future.builtins.new_min_max import newmax as max
+ from future.builtins.new_min_max import newmin as min
+ from future.types.newint import newint
+
+ _SENTINEL = object()
+
+ def pow(x, y, z=_SENTINEL):
+ """
+ pow(x, y[, z]) -> number
+
+ With two arguments, equivalent to x**y. With three arguments,
+ equivalent to (x**y) % z, but may be more efficient (e.g. for ints).
+ """
+ # Handle newints
+ if isinstance(x, newint):
+ x = long(x)
+ if isinstance(y, newint):
+ y = long(y)
+ if isinstance(z, newint):
+ z = long(z)
+
+ try:
+ if z == _SENTINEL:
+ return _builtin_pow(x, y)
+ else:
+ return _builtin_pow(x, y, z)
+ except ValueError:
+ if z == _SENTINEL:
+ return _builtin_pow(x+0j, y)
+ else:
+ return _builtin_pow(x+0j, y, z)
+
+
+ # ``future`` doesn't support Py3.0/3.1. If we ever did, we'd add this:
+ # callable = __builtin__.callable
+
+ __all__ = ['ascii', 'chr', 'hex', 'input', 'isinstance', 'next', 'oct',
+ 'open', 'pow', 'round', 'super', 'max', 'min']
+
+else:
+ import builtins
+ ascii = builtins.ascii
+ chr = builtins.chr
+ hex = builtins.hex
+ input = builtins.input
+ next = builtins.next
+ # Only for backward compatibility with future v0.8.2:
+ isinstance = builtins.isinstance
+ oct = builtins.oct
+ open = builtins.open
+ pow = builtins.pow
+ round = builtins.round
+ super = builtins.super
+ if utils.PY34_PLUS:
+ max = builtins.max
+ min = builtins.min
+ __all__ = []
+ else:
+ from future.builtins.new_min_max import newmax as max
+ from future.builtins.new_min_max import newmin as min
+ __all__ = ['min', 'max']
+
+ # The callable() function was removed from Py3.0 and 3.1 and
+ # reintroduced into Py3.2+. ``future`` doesn't support Py3.0/3.1. If we ever
+ # did, we'd add this:
+ # try:
+ # callable = builtins.callable
+ # except AttributeError:
+ # # Definition from Pandas
+ # def callable(obj):
+ # return any("__call__" in klass.__dict__ for klass in type(obj).__mro__)
+ # __all__.append('callable')