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from __future__ import annotations
from typing import TYPE_CHECKING
from astroid import nodes
from pylint.checkers import BaseRawFileChecker
if TYPE_CHECKING:
from pylint.lint import PyLinter
class MyRawChecker(BaseRawFileChecker):
"""Check for line continuations with '\' instead of using triple
quoted string or parenthesis
"""
name = "custom_raw"
msgs = {
"W9901": (
"use \\ for line continuation",
"backslash-line-continuation",
(
"Used when a \\ is used for a line continuation instead"
" of using triple quoted string or parenthesis."
),
)
}
options = ()
def process_module(self, node: nodes.Module) -> None:
"""Process a module.
the module's content is accessible via node.stream() function
"""
with node.stream() as stream:
for lineno, line in enumerate(stream):
if line.rstrip().endswith("\\"):
self.add_message("backslash-line-continuation", line=lineno)
def register(linter: PyLinter) -> None:
"""This required method auto registers the checker during initialization.
:param linter: The linter to register the checker to.
"""
linter.register_checker(MyRawChecker(linter))
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