Only perform path separator replacement at lstat callsite

Author: 0xd6cb6d73

Lib/tarfile.py

@@ -2438,7 +2438,7 @@ def extractall(self, path=".", members=None, *, numeric_owner=False,
                     continue
                 dirpath = os.path.join(path, tarinfo.name)
                 try:
-                    lstat = os.lstat(dirpath)
+                    lstat = os.lstat(dirpath.replace(r'/', os.sep))
                 except FileNotFoundError:
                     self._log_no_directory_fixup(tarinfo, 'missing')
                     continue
@@ -2489,9 +2489,7 @@ def _get_extract_tarinfo(self, member, filter_function, path):
             unfiltered = self.getmember(member)
         else:
             unfiltered = member
-            
-        if os.sep != r'/':
-                unfiltered.path = unfiltered.path.replace(r'/', os.sep)
+
         filtered = None
         try:
             filtered = filter_function(unfiltered, path)