--- Lib/importlib/_bootstrap.py.fix-handling-of-readonly-pyc-files	2009-10-22 15:24:57.575015046 -0400

+++ Lib/importlib/_bootstrap.py	2009-10-22 15:25:24.024016069 -0400

@@ -522,8 +522,8 @@ class _PyPycFileLoader(PyPycLoader, _PyF

         bytecode_path = self.bytecode_path(name)

         if not bytecode_path:

             bytecode_path = self._base_path + _suffix_list(imp.PY_COMPILED)[0]

-        file = _io.FileIO(bytecode_path, 'w')  # Assuming bytes.

         try:

+            file = _io.FileIO(bytecode_path, 'w')  # Assuming bytes.

             with _closing(file) as bytecode_file:

                 bytecode_file.write(data)

                 return True