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__pycache__	[ DIR ]	drwxr-xr-x
__init__.py	575 B	-rw-r--r--
_check_docs_utils.py	25.74 KB	-rw-r--r--
bad_builtin.py	2.22 KB	-rw-r--r--
broad_try_clause.py	2.25 KB	-rw-r--r--
check_elif.py	2.09 KB	-rw-r--r--
code_style.py	12.51 KB	-rw-r--r--
comparetozero.py	3.09 KB	-rw-r--r--
comparison_placement.py	2.3 KB	-rw-r--r--
confusing_elif.py	1.99 KB	-rw-r--r--
consider_refactoring_into_whil...	3.23 KB	-rw-r--r--
consider_ternary_expression.py	1.66 KB	-rw-r--r--
dict_init_mutate.py	2.06 KB	-rw-r--r--
docparams.py	25.3 KB	-rw-r--r--
docstyle.py	2.87 KB	-rw-r--r--
dunder.py	2.33 KB	-rw-r--r--
empty_comment.py	1.91 KB	-rw-r--r--
emptystring.py	2.9 KB	-rw-r--r--
eq_without_hash.py	1.42 KB	-rw-r--r--
for_any_all.py	5.69 KB	-rw-r--r--
magic_value.py	4.14 KB	-rw-r--r--
mccabe.py	6.89 KB	-rw-r--r--
no_self_use.py	3.62 KB	-rw-r--r--
overlapping_exceptions.py	3.26 KB	-rw-r--r--
private_import.py	10.97 KB	-rw-r--r--
redefined_loop_name.py	3.14 KB	-rw-r--r--
redefined_variable_type.py	4 KB	-rw-r--r--
set_membership.py	1.75 KB	-rw-r--r--
typing.py	19.91 KB	-rw-r--r--
while_used.py	1.07 KB	-rw-r--r--

Code Editor : dunder.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

from __future__ import annotations

from typing import TYPE_CHECKING

from astroid import nodes

from pylint.checkers import BaseChecker
from pylint.constants import DUNDER_METHODS, DUNDER_PROPERTIES, EXTRA_DUNDER_METHODS
from pylint.interfaces import HIGH

if TYPE_CHECKING:
    from pylint.lint import PyLinter

class DunderChecker(BaseChecker):
    """Checks related to dunder methods."""

name = "dunder"
    priority = -1
    msgs = {
        "W3201": (
            "Bad or misspelled dunder method name %s.",
            "bad-dunder-name",
            "Used when a dunder method is misspelled or defined with a name "
            "not within the predefined list of dunder names.",
        ),
    }
    options = (
        (
            "good-dunder-names",
            {
                "default": [],
                "type": "csv",
                "metavar": "<comma-separated names>",
                "help": "Good dunder names which should always be accepted.",
            },
        ),
    )

def open(self) -> None:
        self._dunder_methods = (
            EXTRA_DUNDER_METHODS
            + DUNDER_PROPERTIES
            + self.linter.config.good_dunder_names
        )
        for since_vers, dunder_methods in DUNDER_METHODS.items():
            if since_vers <= self.linter.config.py_version:
                self._dunder_methods.extend(list(dunder_methods.keys()))

def visit_functiondef(self, node: nodes.FunctionDef) -> None:
        """Check if known dunder method is misspelled or dunder name is not one
        of the pre-defined names.
        """
        # ignore module-level functions
        if not node.is_method():
            return

# Detect something that could be a bad dunder method
        if (
            node.name.startswith("_")
            and node.name.endswith("_")
            and node.name not in self._dunder_methods
        ):
            self.add_message(
                "bad-dunder-name",
                node=node,
                args=(node.name),
                confidence=HIGH,
            )

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

${this.title}

Code Editor : dunder.py