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Fix sys.path pollution in parallel mode #7247

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Jul 31, 2022
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Fix sys.path pollution in parallel mode #7247

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3 changes: 3 additions & 0 deletions doc/whatsnew/fragments/7246.bugfix
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Original file line number Diff line number Diff line change
@@ -0,0 +1,3 @@
Fix sys.path pollution in parallel mode.

Closes #7246
4 changes: 3 additions & 1 deletion pylint/lint/pylinter.py
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Original file line number Diff line number Diff line change
Expand Up @@ -651,12 +651,14 @@ def check(self, files_or_modules: Sequence[str] | str) -> None:
self.get_ast, self._iterate_file_descrs(files_or_modules)
)
else:
original_sys_path = sys.path[:]
check_parallel(
self,
self.config.jobs,
self._iterate_file_descrs(files_or_modules),
files_or_modules,
files_or_modules, # this argument patches sys.path
)
sys.path = original_sys_path

def check_single_file(self, name: str, filepath: str, modname: str) -> None:
warnings.warn(
Expand Down