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opt / cloudlinux / venv / lib / python3.11 / site-packages / astroid / brain /

📁 ..
📄 __init__.py(0 B)
📁 __pycache__
📄 brain_argparse.py(1.52 KB)
📄 brain_attrs.py(2.97 KB)
📄 brain_boto3.py(1012 B)
📄 brain_builtin_inference.py(33.45 KB)
📄 brain_collections.py(4.31 KB)
📄 brain_crypt.py(863 B)
📄 brain_ctypes.py(2.6 KB)
📄 brain_curses.py(3.4 KB)
📄 brain_dataclasses.py(21.57 KB)
📄 brain_dateutil.py(767 B)
📄 brain_fstrings.py(2.41 KB)
📄 brain_functools.py(5.85 KB)
📄 brain_gi.py(7.37 KB)
📄 brain_hashlib.py(2.75 KB)
📄 brain_http.py(10.39 KB)
📄 brain_hypothesis.py(1.69 KB)
📄 brain_io.py(1.49 KB)
📄 brain_mechanize.py(2.58 KB)
📄 brain_multiprocessing.py(3.14 KB)
📄 brain_namedtuple_enum.py(22.19 KB)
📄 brain_nose.py(2.27 KB)
📄 brain_numpy_core_einsumfunc.py(825 B)
📄 brain_numpy_core_fromnumeric.py(732 B)
📄 brain_numpy_core_function_base.py(1.27 KB)
📄 brain_numpy_core_multiarray.py(4.14 KB)
📄 brain_numpy_core_numeric.py(1.59 KB)
📄 brain_numpy_core_numerictypes.py(8.35 KB)
📄 brain_numpy_core_umath.py(4.78 KB)
📄 brain_numpy_ma.py(896 B)
📄 brain_numpy_ndarray.py(8.79 KB)
📄 brain_numpy_random_mtrand.py(3.36 KB)
📄 brain_numpy_utils.py(2.58 KB)
📄 brain_pathlib.py(1.51 KB)
📄 brain_pkg_resources.py(2.15 KB)
📄 brain_pytest.py(2.17 KB)
📄 brain_qt.py(2.74 KB)
📄 brain_random.py(2.82 KB)
📄 brain_re.py(2.8 KB)
📄 brain_regex.py(3.28 KB)
📄 brain_responses.py(1.82 KB)
📄 brain_scipy_signal.py(2.22 KB)
📄 brain_signal.py(3.79 KB)
📄 brain_six.py(7.42 KB)
📄 brain_sqlalchemy.py(1009 B)
📄 brain_ssl.py(6.4 KB)
📄 brain_subprocess.py(2.93 KB)
📄 brain_threading.py(870 B)
📄 brain_type.py(2.42 KB)
📄 brain_typing.py(13.98 KB)
📄 brain_unittest.py(1.12 KB)
📄 brain_uuid.py(667 B)
📄 helpers.py(908 B)

Editing: brain_collections.py

# Licensed under the LGPL: https://www.gnu.org/licenses/old-licenses/lgpl-2.1.en.html
# For details: https://github.com/PyCQA/astroid/blob/main/LICENSE
# Copyright (c) https://github.com/PyCQA/astroid/blob/main/CONTRIBUTORS.txt

from __future__ import annotations

from astroid.brain.helpers import register_module_extender
from astroid.builder import extract_node, parse
from astroid.const import PY39_PLUS
from astroid.context import InferenceContext
from astroid.exceptions import AttributeInferenceError
from astroid.manager import AstroidManager
from astroid.nodes.scoped_nodes import ClassDef

def _collections_transform():
    return parse(
        """
    class defaultdict(dict):
        default_factory = None
        def __missing__(self, key): pass
        def __getitem__(self, key): return default_factory

"""
        + _deque_mock()
        + _ordered_dict_mock()
    )

def _deque_mock():
    base_deque_class = """
    class deque(object):
        maxlen = 0
        def __init__(self, iterable=None, maxlen=None):
            self.iterable = iterable or []
        def append(self, x): pass
        def appendleft(self, x): pass
        def clear(self): pass
        def count(self, x): return 0
        def extend(self, iterable): pass
        def extendleft(self, iterable): pass
        def pop(self): return self.iterable[0]
        def popleft(self): return self.iterable[0]
        def remove(self, value): pass
        def reverse(self): return reversed(self.iterable)
        def rotate(self, n=1): return self
        def __iter__(self): return self
        def __reversed__(self): return self.iterable[::-1]
        def __getitem__(self, index): return self.iterable[index]
        def __setitem__(self, index, value): pass
        def __delitem__(self, index): pass
        def __bool__(self): return bool(self.iterable)
        def __nonzero__(self): return bool(self.iterable)
        def __contains__(self, o): return o in self.iterable
        def __len__(self): return len(self.iterable)
        def __copy__(self): return deque(self.iterable)
        def copy(self): return deque(self.iterable)
        def index(self, x, start=0, end=0): return 0
        def insert(self, i, x): pass
        def __add__(self, other): pass
        def __iadd__(self, other): pass
        def __mul__(self, other): pass
        def __imul__(self, other): pass
        def __rmul__(self, other): pass"""
    if PY39_PLUS:
        base_deque_class += """
        @classmethod
        def __class_getitem__(self, item): return cls"""
    return base_deque_class

def _ordered_dict_mock():
    base_ordered_dict_class = """
    class OrderedDict(dict):
        def __reversed__(self): return self[::-1]
        def move_to_end(self, key, last=False): pass"""
    if PY39_PLUS:
        base_ordered_dict_class += """
        @classmethod
        def __class_getitem__(cls, item): return cls"""
    return base_ordered_dict_class

register_module_extender(AstroidManager(), "collections", _collections_transform)

def _looks_like_subscriptable(node: ClassDef) -> bool:
    """
    Returns True if the node corresponds to a ClassDef of the Collections.abc module
    that supports subscripting.

:param node: ClassDef node
    """
    if node.qname().startswith("_collections") or node.qname().startswith(
        "collections"
    ):
        try:
            node.getattr("__class_getitem__")
            return True
        except AttributeInferenceError:
            pass
    return False

CLASS_GET_ITEM_TEMPLATE = """
@classmethod
def __class_getitem__(cls, item):
    return cls
"""

def easy_class_getitem_inference(node, context: InferenceContext | None = None):
    # Here __class_getitem__ exists but is quite a mess to infer thus
    # put an easy inference tip
    func_to_add = extract_node(CLASS_GET_ITEM_TEMPLATE)
    node.locals["__class_getitem__"] = [func_to_add]

if PY39_PLUS:
    # Starting with Python39 some objects of the collection module are subscriptable
    # thanks to the __class_getitem__ method but the way it is implemented in
    # _collection_abc makes it difficult to infer. (We would have to handle AssignName inference in the
    # getitem method of the ClassDef class) Instead we put here a mock of the __class_getitem__ method
    AstroidManager().register_transform(
        ClassDef, easy_class_getitem_inference, _looks_like_subscriptable
    )

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Editing: brain_collections.py

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