subprocess.Popen(..., cwd=...) and Makefile $(PWD) don't play nice
Thomas Bellman
bellman at lysator.liu.se
Tue Oct 14 05:35:22 EDT 2008
Miki <miki.tebeka at gmail.com> writes:
>> The problem is, he is not printing the name of the current working
>> directory; he is printing the value of the variable $PWD. =A0That is
>> likely set from the environment by the shell he started the Python
>> program from, but Python does *not* update to reflect changes to
>> the working directory.
> Should I see it as a bug? Should subprocess change this?
No, it's not a bug. No, subprocess should not muck around with
the environment variables unless explicitly told to do so.
$PWD is only set by some (not all!) shells. It should not be
trusted outside those shells, and hardly inside them either.
--
Thomas Bellman, Lysator Computer Club, Linköping University, Sweden
"Adde parvum parvo magnus acervus erit" ! bellman @ lysator.liu.se
(From The Mythical Man-Month) ! Make Love -- Nicht Wahr!
More information about the Python-list
mailing list