Encode patterns so patterns like "d:\\a\..." do work

Especially useful when using windows paths

Author: maerteijn

pylsp_mypy/plugin.py

@@ -187,6 +187,10 @@ def pylsp_lint(
     # exclude = ["tests/*"]
     exclude = settings.get("exclude", [])
     for pattern in exclude:
+        # Make sure that \\ characters are encoded correctly so for examples
+        # windows paths are matched without any bad escape errors
+        pattern = pattern.encode("unicode-escape").decode()
+
         if re.search(pattern, document.path):
             log.debug(
                 f"Not running because {document.path} matches " f"exclude pattern '{pattern}'"