admin_scripts tests deprecation warning on Linux/Python 2.6b2

[Karen Tracey]

Running the admin_scripts tests on Python 2.6 beta 2 I get a deprecation warning about popen3 (though that doesn't cause the tests to fail):

user@gutsy:~/tmp/django/trunk/tests$ /homedir/Python/Python-2.6b2/python runtests.py --settings=testsettings admin_scripts
/homedir/tmp/django/trunk/tests/regressiontests/admin_scripts/tests.py:109: DeprecationWarning: os.popen3 is deprecated.  Use the subprocess module.
  stdin, stdout, stderr = os.popen3(cmd)
----------------------------------------------------------------------
Ran 109 tests in 22.997s

OK

I do not get the warning running on Windows, so this may be specific to the way I built python (on Windows I used a prebuilt binary), though the warning is also seen in the Python community buildbot output: ​http://www.python.org/dev/buildbot/community/all/?show=sparc%20Solaris%2010%20trunk

I don't see any harm in using subprocess if it's available so I'll attach a patch that does that. Patch was tested on

1 -- Linux Python 2.4.4, 2.5.1, 2.5b2

2 -- Windows Pyhton 2.3.5, 2.5.1, 2.6b2

[Karen Tracey]

I meant tested on Linux 2.6b2 of course, not 2.5b2.

[Jacob]

(In [8309]) Fixed #8235: use subprocess instead of popen3 so that Python 2.6 is happy. Thanks, Karen Tracey.

[Jacob]

Milestone 1.0 beta deleted