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Co-authored-by: Marc Mueller <[email protected]>

Author: Pierre-Sassoulas

pylint/testutils/primer.py

@@ -36,21 +36,19 @@ def __init__(
         commit: Optional[str] = None,
         pylint_additional_args: Optional[List[str]] = None,
         pylintrc_relpath: Optional[str] = None,
-    ):
+    ) -> None:
         self.url = url
         self.branch = branch
         self.directories = directories
         self.commit = commit
-        if pylint_additional_args is None:
-            pylint_additional_args = []
-        self.pylint_additional_args = pylint_additional_args
+        self.pylint_additional_args = pylint_additional_args or []
         self.pylintrc_relpath = pylintrc_relpath
 
     @property
-    def pylintrc(self) -> Optional[str]:
+    def pylintrc(self) -> Optional[Path]:
         if self.pylintrc_relpath is None:
             return None
-        return f"{self.clone_directory}/{self.pylintrc_relpath}"
+        return self.clone_directory / self.pylintrc_relpath
 
     @property
     def clone_directory(self) -> Path: