code: def release(self):
          
          # checking for the lock here makes sure we do not raise during write()
          # in case an invalid parser was created who could not get a lock
          if self.read_only or (self._lock and not self._lock._has_lock()):
              return
  
          try:
              try:
                  self.write()
              except IOError:
                  log.error("Exception during destruction of GitConfigParser", exc_info=True)
              except ReferenceError:
                  # This happens in PY3 ... and usually means that some state cannot be written
                  # as the sections dict cannot be iterated
                  # Usually when shutting down the interpreter, don'y know how to fix this
                  pass
          finally:
              self._lock._release_lock()
docs: Flush changes and release the configuration write lock. This instance must not be used anymore afterwards.
          In Python 3, it's required to explicitly release locks and flush changes, as __del__ is not called
          deterministically anymore.