--- gzip.py.orig	2008-05-24 16:11:18.000000000 -0700
+++ gzip.py	2008-05-24 16:23:49.000000000 -0700
@@ -311,6 +311,8 @@
             raise IOError, "Incorrect length of data produced"
 
     def close(self):
+        if self.fileobj == None:
+            return
         if self.mode == WRITE:
             self.fileobj.write(self.compress.flush())
             write32(self.fileobj, self.crc)