Good day!
I was trying my hand at wrapping a PyQt application, and I stumbled on
the plugin issue that seems to have plagued many here, where the
plugins load another copy of the Qt frameworks, indicated as such:
On Mac OS X, you might be loading two sets of Qt binaries into the
same process. Check that all plugins are compiled against the right Qt
binaries. Export DYLD_PRINT_LIBRARIES=1 and check that only one set of
binaries are being loaded.
I looked a bit at how to fix this, and here is what worked for me. I
have not yet written code to automate this process; but this
description may be useful to people willing to fix executables by hand.
a) copy the plugin directory from /Developer/Applications/Qt/plugins
to dist/<application.app>/Contents/plugins
b) Create a file dist/<application.app>/Contents/Resources/qt.conf
with contents as follows:
[Paths]
qt_plugpath=plugins
The path is relative to Contents. Another path could be chosen, that
could be more congenial to py2app.
c) Adjust the paths of the plugins with install_name_tool. Eg, from
the shell:
find dist/<application.app>/Contents/plugins -type f -exec
install_name_tool -change QtGui.framework/Versions/4/QtGui
@executable_path/../Frameworks/QtGui.framework/Versions/4/QtGui {} ';'
find dist/<application.app>/Contents/plugins -type f -exec
install_name_tool -change QtGui.framework/Versions/4/QtCore
@executable_path/../Frameworks/QtCore.framework/Versions/4/QtCore {}
';'
(and so on if you need QtWebKit etc.)
Cheers,
Marc-Antoine Parent
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