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# Licensed under the GPL: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
# For details: https://github.com/pylint-dev/pylint/blob/main/LICENSE
# Copyright (c) https://github.com/pylint-dev/pylint/blob/main/CONTRIBUTORS.txt
from __future__ import annotations
import os
import platform
import sys
import astroid
import platformdirs
from pylint.__pkginfo__ import __version__
from pylint.typing import MessageTypesFullName
PY38_PLUS = sys.version_info[:2] >= (3, 8)
PY39_PLUS = sys.version_info[:2] >= (3, 9)
PY310_PLUS = sys.version_info[:2] >= (3, 10)
IS_PYPY = platform.python_implementation() == "PyPy"
PY_EXTS = (".py", ".pyc", ".pyo", ".pyw", ".so", ".dll")
MSG_STATE_CONFIDENCE = 2
_MSG_ORDER = "EWRCIF"
MSG_STATE_SCOPE_CONFIG = 0
MSG_STATE_SCOPE_MODULE = 1
# The line/node distinction does not apply to fatal errors and reports.
_SCOPE_EXEMPT = "FR"
MSG_TYPES: dict[str, MessageTypesFullName] = {
"I": "info",
"C": "convention",
"R": "refactor",
"W": "warning",
"E": "error",
"F": "fatal",
}
MSG_TYPES_LONG: dict[str, str] = {v: k for k, v in MSG_TYPES.items()}
MSG_TYPES_STATUS = {"I": 0, "C": 16, "R": 8, "W": 4, "E": 2, "F": 1}
# You probably don't want to change the MAIN_CHECKER_NAME
# This would affect rcfile generation and retro-compatibility
# on all project using [MAIN] in their rcfile.
MAIN_CHECKER_NAME = "main"
DEFAULT_PYLINT_HOME = platformdirs.user_cache_dir("pylint")
DEFAULT_IGNORE_LIST = ("CVS",)
class WarningScope:
LINE = "line-based-msg"
NODE = "node-based-msg"
full_version = f"""pylint {__version__}
astroid {astroid.__version__}
Python {sys.version}"""
HUMAN_READABLE_TYPES = {
"file": "file",
"module": "module",
"const": "constant",
"class": "class",
"function": "function",
"method": "method",
"attr": "attribute",
"argument": "argument",
"variable": "variable",
"class_attribute": "class attribute",
"class_const": "class constant",
"inlinevar": "inline iteration",
"typevar": "type variable",
"typealias": "type alias",
}
# ignore some messages when emitting useless-suppression:
# - cyclic-import: can show false positives due to incomplete context
# - deprecated-{module, argument, class, method, decorator}:
# can cause false positives for multi-interpreter projects
# when linting with an interpreter on a lower python version
INCOMPATIBLE_WITH_USELESS_SUPPRESSION = frozenset(
[
"R0401", # cyclic-import
"W0402", # deprecated-module
"W1505", # deprecated-method
"W1511", # deprecated-argument
"W1512", # deprecated-class
"W1513", # deprecated-decorator
"R0801", # duplicate-code
]
)
def _get_pylint_home() -> str:
"""Return the pylint home."""
if "PYLINTHOME" in os.environ:
return os.environ["PYLINTHOME"]
return DEFAULT_PYLINT_HOME
PYLINT_HOME = _get_pylint_home()
TYPING_NORETURN = frozenset(
(
"typing.NoReturn",
"typing_extensions.NoReturn",
)
)
TYPING_NEVER = frozenset(
(
"typing.Never",
"typing_extensions.Never",
)
)
DUNDER_METHODS: dict[tuple[int, int], dict[str, str]] = {
(0, 0): {
"__init__": "Instantiate class directly",
"__del__": "Use del keyword",
"__repr__": "Use repr built-in function",
"__str__": "Use str built-in function",
"__bytes__": "Use bytes built-in function",
"__format__": "Use format built-in function, format string method, or f-string",
"__lt__": "Use < operator",
"__le__": "Use <= operator",
"__eq__": "Use == operator",
"__ne__": "Use != operator",
"__gt__": "Use > operator",
"__ge__": "Use >= operator",
"__hash__": "Use hash built-in function",
"__bool__": "Use bool built-in function",
"__getattr__": "Access attribute directly or use getattr built-in function",
"__getattribute__": "Access attribute directly or use getattr built-in function",
"__setattr__": "Set attribute directly or use setattr built-in function",
"__delattr__": "Use del keyword",
"__dir__": "Use dir built-in function",
"__get__": "Use get method",
"__set__": "Use set method",
"__delete__": "Use del keyword",
"__instancecheck__": "Use isinstance built-in function",
"__subclasscheck__": "Use issubclass built-in function",
"__call__": "Invoke instance directly",
"__len__": "Use len built-in function",
"__length_hint__": "Use length_hint method",
"__getitem__": "Access item via subscript",
"__setitem__": "Set item via subscript",
"__delitem__": "Use del keyword",
"__iter__": "Use iter built-in function",
"__next__": "Use next built-in function",
"__reversed__": "Use reversed built-in function",
"__contains__": "Use in keyword",
"__add__": "Use + operator",
"__sub__": "Use - operator",
"__mul__": "Use * operator",
"__matmul__": "Use @ operator",
"__truediv__": "Use / operator",
"__floordiv__": "Use // operator",
"__mod__": "Use % operator",
"__divmod__": "Use divmod built-in function",
"__pow__": "Use ** operator or pow built-in function",
"__lshift__": "Use << operator",
"__rshift__": "Use >> operator",
"__and__": "Use & operator",
"__xor__": "Use ^ operator",
"__or__": "Use | operator",
"__radd__": "Use + operator",
"__rsub__": "Use - operator",
"__rmul__": "Use * operator",
"__rmatmul__": "Use @ operator",
"__rtruediv__": "Use / operator",
"__rfloordiv__": "Use // operator",
"__rmod__": "Use % operator",
"__rdivmod__": "Use divmod built-in function",
"__rpow__": "Use ** operator or pow built-in function",
"__rlshift__": "Use << operator",
"__rrshift__": "Use >> operator",
"__rand__": "Use & operator",
"__rxor__": "Use ^ operator",
"__ror__": "Use | operator",
"__iadd__": "Use += operator",
"__isub__": "Use -= operator",
"__imul__": "Use *= operator",
"__imatmul__": "Use @= operator",
"__itruediv__": "Use /= operator",
"__ifloordiv__": "Use //= operator",
"__imod__": "Use %= operator",
"__ipow__": "Use **= operator",
"__ilshift__": "Use <<= operator",
"__irshift__": "Use >>= operator",
"__iand__": "Use &= operator",
"__ixor__": "Use ^= operator",
"__ior__": "Use |= operator",
"__neg__": "Multiply by -1 instead",
"__pos__": "Multiply by +1 instead",
"__abs__": "Use abs built-in function",
"__invert__": "Use ~ operator",
"__complex__": "Use complex built-in function",
"__int__": "Use int built-in function",
"__float__": "Use float built-in function",
"__round__": "Use round built-in function",
"__trunc__": "Use math.trunc function",
"__floor__": "Use math.floor function",
"__ceil__": "Use math.ceil function",
"__enter__": "Invoke context manager directly",
"__aenter__": "Invoke context manager directly",
"__copy__": "Use copy.copy function",
"__deepcopy__": "Use copy.deepcopy function",
"__fspath__": "Use os.fspath function instead",
},
(3, 10): {
"__aiter__": "Use aiter built-in function",
"__anext__": "Use anext built-in function",
},
}
EXTRA_DUNDER_METHODS = [
"__new__",
"__subclasses__",
"__init_subclass__",
"__set_name__",
"__class_getitem__",
"__missing__",
"__exit__",
"__await__",
"__aexit__",
"__getnewargs_ex__",
"__getnewargs__",
"__getstate__",
"__index__",
"__setstate__",
"__reduce__",
"__reduce_ex__",
"__post_init__", # part of `dataclasses` module
]
DUNDER_PROPERTIES = [
"__class__",
"__dict__",
"__doc__",
"__format__",
"__module__",
"__sizeof__",
"__subclasshook__",
"__weakref__",
]
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