[Bug 660363] Re: python-qt4 4.7.4 breaks git-cola

daveinthesky 660363 at bugs.launchpad.net
Wed Oct 20 09:05:11 UTC 2010

I found the issue.  PyQt4 <= 4.7.3 would report bool(QLayout()) == True
while the new 4.7.4 release treats bool(QLayout()) as False.

This is a behavior change, but it's better for the code to be explicit
and check "if foo is None:" instead of checking "if foo:", so it's
likely that it was intentional.

In any case, git-cola works around this and is no longer

python-qt4 4.7.4 breaks git-cola
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