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File Content: `brain_hypothesis.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

"""
Astroid hook for the Hypothesis library.

Without this hook pylint reports no-value-for-parameter for use of strategies
defined using the `@hypothesis.strategies.composite` decorator.  For example:

    from hypothesis import strategies as st

    @st.composite
    def a_strategy(draw):
        return draw(st.integers())

    a_strategy()
"""
from astroid.manager import AstroidManager
from astroid.nodes.scoped_nodes import FunctionDef

COMPOSITE_NAMES = (
    "composite",
    "st.composite",
    "strategies.composite",
    "hypothesis.strategies.composite",
)


def is_decorated_with_st_composite(node) -> bool:
    """Return whether a decorated node has @st.composite applied."""
    if node.decorators and node.args.args and node.args.args[0].name == "draw":
        for decorator_attribute in node.decorators.nodes:
            if decorator_attribute.as_string() in COMPOSITE_NAMES:
                return True
    return False


def remove_draw_parameter_from_composite_strategy(node):
    """Given that the FunctionDef is decorated with @st.composite, remove the
    first argument (`draw`) - it's always supplied by Hypothesis so we don't
    need to emit the no-value-for-parameter lint.
    """
    del node.args.args[0]
    del node.args.annotations[0]
    del node.args.type_comment_args[0]
    return node


AstroidManager().register_transform(
    node_class=FunctionDef,
    transform=remove_draw_parameter_from_composite_strategy,
    predicate=is_decorated_with_st_composite,
)

Name	Size	Permission
__pycache__	---	0755
__init__.py	0 bytes	0644
brain_argparse.py	1557 bytes	0644
brain_attrs.py	3038 bytes	0644
brain_boto3.py	1012 bytes	0644
brain_builtin_inference.py	34254 bytes	0644
brain_collections.py	4416 bytes	0644
brain_crypt.py	863 bytes	0644
brain_ctypes.py	2660 bytes	0644
brain_curses.py	3477 bytes	0644
brain_dataclasses.py	22089 bytes	0644
brain_dateutil.py	767 bytes	0644
brain_fstrings.py	2471 bytes	0644
brain_functools.py	5986 bytes	0644
brain_gi.py	7543 bytes	0644
brain_hashlib.py	2821 bytes	0644
brain_http.py	10640 bytes	0644
brain_hypothesis.py	1732 bytes	0644
brain_io.py	1526 bytes	0644
brain_mechanize.py	2646 bytes	0644
brain_multiprocessing.py	3211 bytes	0644
brain_namedtuple_enum.py	22725 bytes	0644
brain_nose.py	2320 bytes	0644
brain_numpy_core_einsumfunc.py	825 bytes	0644
brain_numpy_core_fromnumeric.py	732 bytes	0644
brain_numpy_core_function_base.py	1298 bytes	0644
brain_numpy_core_multiarray.py	4238 bytes	0644
brain_numpy_core_numeric.py	1629 bytes	0644
brain_numpy_core_numerictypes.py	8546 bytes	0644
brain_numpy_core_umath.py	4893 bytes	0644
brain_numpy_ma.py	896 bytes	0644
brain_numpy_ndarray.py	8998 bytes	0644
brain_numpy_random_mtrand.py	3436 bytes	0644
brain_numpy_utils.py	2637 bytes	0644
brain_pathlib.py	1542 bytes	0644
brain_pkg_resources.py	2200 bytes	0644
brain_pytest.py	2223 bytes	0644
brain_qt.py	2808 bytes	0644
brain_random.py	2890 bytes	0644
brain_re.py	2870 bytes	0644
brain_regex.py	3362 bytes	0644
brain_responses.py	1868 bytes	0644
brain_scipy_signal.py	2276 bytes	0644
brain_signal.py	3880 bytes	0644
brain_six.py	7594 bytes	0644
brain_sqlalchemy.py	1009 bytes	0644
brain_ssl.py	6554 bytes	0644
brain_subprocess.py	2996 bytes	0644
brain_threading.py	870 bytes	0644
brain_type.py	2483 bytes	0644
brain_typing.py	14315 bytes	0644
brain_unittest.py	1147 bytes	0644
brain_uuid.py	667 bytes	0644
helpers.py	908 bytes	0644

File Content: brain_hypothesis.py

File Content: `brain_hypothesis.py`