High byte is the exit status.

a253dc1d · Stefan Krah · eefec7b8 · a253dc1d
Commit a253dc1d authored Jul 14, 2010 by Stefan Krah
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Doc/library/subprocess.rst Doc/library/subprocess.rst +1 -1

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--- a/Doc/library/subprocess.rst
+++ b/Doc/library/subprocess.rst
@@ -551,7 +551,7 @@ Return code handling translates as follows::
   pipe = os.popen("cmd", 'w')
   ...
   rc = pipe.close()
-   if rc is not None and rc % 256:
+   if rc is not None and rc >> 8:
       print "There were some errors"
   ==>
   process = Popen("cmd", 'w', shell=True, stdin=PIPE)