pythonGH-112906: Fix performance regression in pathlib path initialis…

…ation (python#112907) This was caused by 76929fd, specifically its use of `super()` and its packing/unpacking `*args`. Co-authored-by: Alex Waygood <[email protected]>
tim-one · Dec 10, 2023 · 23df46a · 23df46a
1 parent 96f64a2
commit 23df46a
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/Lib/pathlib/__init__.py b/Lib/pathlib/__init__.py
@@ -90,7 +90,9 @@ def __init__(self, *args):
                         "object where __fspath__ returns a str, "
                         f"not {type(path).__name__!r}")
                 paths.append(path)
-        super().__init__(*paths)
+        # Avoid calling super().__init__, as an optimisation
+        self._raw_paths = paths
+        self._resolving = False
 
     def __reduce__(self):
         # Using the parts tuple helps share interned path parts