Kevin Jacobs <jacobs@darwin.cwru.edu>:

The posixfile __del__ method attempts to close the file (_file_) it
contains. However, if the open() method fails, then _file_ is never
assigned.

This closes SourceForge bug #113850.

Lib/posixfile.py

@@ -68,7 +68,8 @@ class _posixfile_:
                  hex(id(self))[2:])
 
     def __del__(self):
-        self._file_.close()
+        if hasattr(self, "_file_"):
+            self._file_.close()
 
     #
     # Initialization routines