      def _createdir(self):
          if not os.path.exists(self._dir):
              try:
                  os.makedirs(self._dir, 0o700)
  
      def _key_to_file(self, key, version=None):
          """
          Convert a key into a cache file path. Basically this is the
          root cache path joined with the md5sum of the key and a suffix.
          """
 
</s> remove             with suppress(FileExistsError):
 </s> add             try: </s> remove     with suppress(KeyError):
 </s> add     try: </s> remove 
        with suppress(KeyError):
 </s> add         except KeyError:
            pass
        try:
            except FileExistsError:
                pass
      def _createdir(self):
          if not os.path.exists(self._dir):
              try:
                  os.makedirs(self._dir, 0o700)
            except FileExistsError:
                pass
  
      def _key_to_file(self, key, version=None):
          """
          Convert a key into a cache file path. Basically this is the
          root cache path joined with the md5sum of the key and a suffix.
          """
keep keep keep add keep keep keep keep keep keep
 Reverted "Fixed #27818 -- Replaced try/except/pass with contextlib.suppress()."

This reverts commit 550cb3a365dee4edfdd1563224d5304de2a57fda
because try/except performs better. 
django/core/cache/backends/filebased.py