jarausch at igpm
May 20, 2008, 3:18 AM
Views: 52
Permalink
|
|
subprocess - please enhance the documentation
|
|
Hi,
I'd like to suggest to add a few lines to chapter 17.1.3.5 "Replacing os.popen"
(Python Doc 2.5.2)
I have used the following code in the past
ARC='MyDumpFile'
tar_inp= os.popen('/bin/tar cjf '+ARC+' -T -','w')
....
tar_exit_code= tar_inp.close()
if tar_exit_code != None and tar_exit_code % 256 :
print "some error messages"
When replacing this - as suggested - by
TAR= Popen(('/bin/tar','cjf',ARC,'-T','-'),stdin=PIPE)
tar_inp= TAR.stdin
....
tar_inp.close() always returns None.
So I have replaced this by
tar_inp.close()
tar_exit_code= TAR.wait()
if tar_exit_code != 0 :
print "some error messages"
Perhaps a few lines telling about this would be helpful.
Thanks,
Helmut.
--
Helmut Jarausch
Lehrstuhl fuer Numerische Mathematik
RWTH - Aachen University
D 52056 Aachen, Germany
--
http://mail.python.org/mailman/listinfo/python-list
|
subprocess - please enhance the documentation
