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ðŸ“ ..
ðŸ“„ __init__.py(4.26 KB)
ðŸ“ __pycache__
ðŸ“„ async.py(3.83 KB)
ðŸ“„ bad_chained_comparison.py(2.18 KB)
ðŸ“ base
ðŸ“„ base_checker.py(10.67 KB)
ðŸ“ classes
ðŸ“„ deprecated.py(9.43 KB)
ðŸ“„ design_analysis.py(21.62 KB)
ðŸ“„ dunder_methods.py(3.43 KB)
ðŸ“„ ellipsis_checker.py(1.97 KB)
ðŸ“„ exceptions.py(26.05 KB)
ðŸ“„ format.py(26.91 KB)
ðŸ“„ imports.py(41.31 KB)
ðŸ“„ lambda_expressions.py(3.38 KB)
ðŸ“„ logging.py(15.84 KB)
ðŸ“„ mapreduce_checker.py(1.08 KB)
ðŸ“„ method_args.py(4.68 KB)
ðŸ“„ misc.py(4.87 KB)
ðŸ“„ modified_iterating_checker.py(7.67 KB)
ðŸ“„ nested_min_max.py(3.63 KB)
ðŸ“„ newstyle.py(4.46 KB)
ðŸ“„ non_ascii_names.py(6.98 KB)
ðŸ“„ raw_metrics.py(3.81 KB)
ðŸ“ refactoring
ðŸ“„ similar.py(33.29 KB)
ðŸ“„ spelling.py(16.17 KB)
ðŸ“„ stdlib.py(31.28 KB)
ðŸ“„ strings.py(40.28 KB)
ðŸ“„ threading_checker.py(1.9 KB)
ðŸ“„ typecheck.py(86.83 KB)
ðŸ“„ unicode.py(18.05 KB)
ðŸ“„ unsupported_version.py(2.93 KB)
ðŸ“„ utils.py(77.26 KB)
ðŸ“„ variables.py(126.57 KB)

Editing: async.py

# Licensed under the GPL: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
# For details: https://github.com/PyCQA/pylint/blob/main/LICENSE
# Copyright (c) https://github.com/PyCQA/pylint/blob/main/CONTRIBUTORS.txt

"""Checker for anything related to the async protocol (PEP 492)."""

from __future__ import annotations

import sys
from typing import TYPE_CHECKING

import astroid
from astroid import nodes, util

from pylint import checkers
from pylint.checkers import utils as checker_utils
from pylint.checkers.utils import decorated_with

if TYPE_CHECKING:
    from pylint.lint import PyLinter

class AsyncChecker(checkers.BaseChecker):
    name = "async"
    msgs = {
        "E1700": (
            "Yield inside async function",
            "yield-inside-async-function",
            "Used when an `yield` or `yield from` statement is "
            "found inside an async function.",
            {"minversion": (3, 5)},
        ),
        "E1701": (
            "Async context manager '%s' doesn't implement __aenter__ and __aexit__.",
            "not-async-context-manager",
            "Used when an async context manager is used with an object "
            "that does not implement the async context management protocol.",
            {"minversion": (3, 5)},
        ),
    }

def open(self) -> None:
        self._mixin_class_rgx = self.linter.config.mixin_class_rgx
        self._async_generators = ["contextlib.asynccontextmanager"]

@checker_utils.only_required_for_messages("yield-inside-async-function")
    def visit_asyncfunctiondef(self, node: nodes.AsyncFunctionDef) -> None:
        for child in node.nodes_of_class(nodes.Yield):
            if child.scope() is node and (
                sys.version_info[:2] == (3, 5) or isinstance(child, nodes.YieldFrom)
            ):
                self.add_message("yield-inside-async-function", node=child)

@checker_utils.only_required_for_messages("not-async-context-manager")
    def visit_asyncwith(self, node: nodes.AsyncWith) -> None:
        for ctx_mgr, _ in node.items:
            inferred = checker_utils.safe_infer(ctx_mgr)
            if inferred is None or isinstance(inferred, util.UninferableBase):
                continue

if isinstance(inferred, nodes.AsyncFunctionDef):
                # Check if we are dealing with a function decorated
                # with contextlib.asynccontextmanager.
                if decorated_with(inferred, self._async_generators):
                    continue
            elif isinstance(inferred, astroid.bases.AsyncGenerator):
                # Check if we are dealing with a function decorated
                # with contextlib.asynccontextmanager.
                if decorated_with(inferred.parent, self._async_generators):
                    continue
            else:
                try:
                    inferred.getattr("__aenter__")
                    inferred.getattr("__aexit__")
                except astroid.exceptions.NotFoundError:
                    if isinstance(inferred, astroid.Instance):
                        # If we do not know the bases of this class,
                        # just skip it.
                        if not checker_utils.has_known_bases(inferred):
                            continue
                        # Ignore mixin classes if they match the rgx option.
                        if (
                            "not-async-context-manager"
                            in self.linter.config.ignored_checks_for_mixins
                            and self._mixin_class_rgx.match(inferred.name)
                        ):
                            continue
                else:
                    continue
            self.add_message(
                "not-async-context-manager", node=node, args=(inferred.name,)
            )

def register(linter: PyLinter) -> None:
    linter.register_checker(AsyncChecker(linter))

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