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📁 ..
📄 __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_re.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 import context, inference_tip, nodes
from astroid.brain.helpers import register_module_extender
from astroid.builder import _extract_single_node, parse
from astroid.const import PY39_PLUS, PY311_PLUS
from astroid.manager import AstroidManager

def _re_transform() -> nodes.Module:
    # The RegexFlag enum exposes all its entries by updating globals()
    # In 3.6-3.10 all flags come from sre_compile
    # On 3.11+ all flags come from re._compiler
    if PY311_PLUS:
        import_compiler = "import re._compiler as _compiler"
    else:
        import_compiler = "import sre_compile as _compiler"
    return parse(
        f"""
    {import_compiler}
    NOFLAG = 0
    ASCII = _compiler.SRE_FLAG_ASCII
    IGNORECASE = _compiler.SRE_FLAG_IGNORECASE
    LOCALE = _compiler.SRE_FLAG_LOCALE
    UNICODE = _compiler.SRE_FLAG_UNICODE
    MULTILINE = _compiler.SRE_FLAG_MULTILINE
    DOTALL = _compiler.SRE_FLAG_DOTALL
    VERBOSE = _compiler.SRE_FLAG_VERBOSE
    TEMPLATE = _compiler.SRE_FLAG_TEMPLATE
    DEBUG = _compiler.SRE_FLAG_DEBUG
    A = ASCII
    I = IGNORECASE
    L = LOCALE
    U = UNICODE
    M = MULTILINE
    S = DOTALL
    X = VERBOSE
    T = TEMPLATE
    """
    )

register_module_extender(AstroidManager(), "re", _re_transform)

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

def _looks_like_pattern_or_match(node: nodes.Call) -> bool:
    """Check for re.Pattern or re.Match call in stdlib.

Match these patterns from stdlib/re.py
    ```py
    Pattern = type(...)
    Match = type(...)
    ```
    """
    return (
        node.root().name == "re"
        and isinstance(node.func, nodes.Name)
        and node.func.name == "type"
        and isinstance(node.parent, nodes.Assign)
        and len(node.parent.targets) == 1
        and isinstance(node.parent.targets[0], nodes.AssignName)
        and node.parent.targets[0].name in {"Pattern", "Match"}
    )

def infer_pattern_match(node: nodes.Call, ctx: context.InferenceContext | None = None):
    """Infer re.Pattern and re.Match as classes.

For PY39+ add `__class_getitem__`.
    """
    class_def = nodes.ClassDef(
        name=node.parent.targets[0].name,
        lineno=node.lineno,
        col_offset=node.col_offset,
        parent=node.parent,
    )
    if PY39_PLUS:
        func_to_add = _extract_single_node(CLASS_GETITEM_TEMPLATE)
        class_def.locals["__class_getitem__"] = [func_to_add]
    return iter([class_def])

AstroidManager().register_transform(
    nodes.Call, inference_tip(infer_pattern_match), _looks_like_pattern_or_match
)

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Editing: brain_re.py

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