diff options
Diffstat (limited to '.venv/lib/python3.12/site-packages/cffi/_imp_emulation.py')
-rw-r--r-- | .venv/lib/python3.12/site-packages/cffi/_imp_emulation.py | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/.venv/lib/python3.12/site-packages/cffi/_imp_emulation.py b/.venv/lib/python3.12/site-packages/cffi/_imp_emulation.py new file mode 100644 index 00000000..136abddd --- /dev/null +++ b/.venv/lib/python3.12/site-packages/cffi/_imp_emulation.py @@ -0,0 +1,83 @@ + +try: + # this works on Python < 3.12 + from imp import * + +except ImportError: + # this is a limited emulation for Python >= 3.12. + # Note that this is used only for tests or for the old ffi.verify(). + # This is copied from the source code of Python 3.11. + + from _imp import (acquire_lock, release_lock, + is_builtin, is_frozen) + + from importlib._bootstrap import _load + + from importlib import machinery + import os + import sys + import tokenize + + SEARCH_ERROR = 0 + PY_SOURCE = 1 + PY_COMPILED = 2 + C_EXTENSION = 3 + PY_RESOURCE = 4 + PKG_DIRECTORY = 5 + C_BUILTIN = 6 + PY_FROZEN = 7 + PY_CODERESOURCE = 8 + IMP_HOOK = 9 + + def get_suffixes(): + extensions = [(s, 'rb', C_EXTENSION) + for s in machinery.EXTENSION_SUFFIXES] + source = [(s, 'r', PY_SOURCE) for s in machinery.SOURCE_SUFFIXES] + bytecode = [(s, 'rb', PY_COMPILED) for s in machinery.BYTECODE_SUFFIXES] + return extensions + source + bytecode + + def find_module(name, path=None): + if not isinstance(name, str): + raise TypeError("'name' must be a str, not {}".format(type(name))) + elif not isinstance(path, (type(None), list)): + # Backwards-compatibility + raise RuntimeError("'path' must be None or a list, " + "not {}".format(type(path))) + + if path is None: + if is_builtin(name): + return None, None, ('', '', C_BUILTIN) + elif is_frozen(name): + return None, None, ('', '', PY_FROZEN) + else: + path = sys.path + + for entry in path: + package_directory = os.path.join(entry, name) + for suffix in ['.py', machinery.BYTECODE_SUFFIXES[0]]: + package_file_name = '__init__' + suffix + file_path = os.path.join(package_directory, package_file_name) + if os.path.isfile(file_path): + return None, package_directory, ('', '', PKG_DIRECTORY) + for suffix, mode, type_ in get_suffixes(): + file_name = name + suffix + file_path = os.path.join(entry, file_name) + if os.path.isfile(file_path): + break + else: + continue + break # Break out of outer loop when breaking out of inner loop. + else: + raise ImportError(name, name=name) + + encoding = None + if 'b' not in mode: + with open(file_path, 'rb') as file: + encoding = tokenize.detect_encoding(file.readline)[0] + file = open(file_path, mode, encoding=encoding) + return file, file_path, (suffix, mode, type_) + + def load_dynamic(name, path, file=None): + loader = machinery.ExtensionFileLoader(name, path) + spec = machinery.ModuleSpec(name=name, loader=loader, origin=path) + return _load(spec) |