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List:       pykde
Subject:    Re: [PyQt] Build from source seg. faults when using --qtconf-prefix
From:       Sebastian Eckweiler <sebastian.eckweiler () twt-gmbh ! de>
Date:       2016-12-14 20:28:14
Message-ID: OFEE4FD2C6.D360A110-ONC1258089.007072B9-C1258089.007072BC () twt-gmbh ! de
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<div>Hi there,</div><div><br></div><div>thanks, I'll give it a try.</div>
<div>I guess I wouldn't have expected a seg fault when using a wrong/invalid path, \
though.</div> <div>Using a qt.conf file is comparatively easy to check whether paths \
are correct via QLibraryInfo...</div> \
<div><br></div><div>Cheers</div><div>Sebastian</div><div><br></div><font \
                color="#990099">
-----Phil Thompson &lt;phil@riverbankcomputing.com&gt; schrieb: -----</font>
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An: Sebastian Eckweiler &lt;sebastian.eckweiler@twt-gmbh.de&gt;<br>Von: Phil Thompson \
                &lt;phil@riverbankcomputing.com&gt;<br>
Datum: 14.12.2016 17:53<br>Kopie: pyqt &lt;pyqt@riverbankcomputing.com&gt;<br>
Betreff: Re: [PyQt] Build from source seg. faults when using --qtconf-prefix<br>
<br><div><font face="Courier New,Courier,monospace" size="3">On 12 Dec 2016, at 3:01 \
pm, Sebastian Eckweiler &lt;sebastian.eckweiler@twt-gmbh.de&gt; wrote:<br> &gt; \
<br>&gt; Hi there, <br>&gt; <br>&gt; I'm building PyQt5 from source to work with \
Python 2. <br> &gt; Things are almost fine I was able to assemble a wheel that works. \
<br> &gt; <br>&gt; The only issue I'm left with is the qt.conf file, i.e. Qt's paths. \
<br> &gt; If I skip the --qtconf-prefix option I have to add the "plugins" folder \
manually, when importing PyQt5, e.g. by adding to PyQt5/__init__.py: <br> &gt; \
<br>&gt; import QtCore <br>&gt; <br>&gt; _libpath = \
_os.path.join(_os.path.dirname(__file__), 'Qt', 'plugins') <br> &gt; \
QtCore.QCoreApplication.setLibraryPaths([_libpath]) <br>&gt; <br>&gt; This seems to \
do the trick for many (all?) Qt classes so far, but it e.g. fails to fix the missing \
paths for QML components, which I'd like to use. <br> &gt; Since Qt's search path for \
a manually written qt.conf file is the folder of python.exe itself, I unfortunately \
cannot include a simple qt.conf file in a wheel (or can I?) <br> &gt; <br>&gt; So I \
tried including the prefix in the build via <br>&gt; <br> &gt; python setup.py \
--qtconf-prefix=Lib/site-packages/PyQt5/Qt <br>&gt; <br> &gt; while leaving the other \
options unchanged. <br>&gt; Built this way however, attempting to import QtCore \
results in a seg-fault somewhere in QtCore.dll. <br> &gt; Is there anything I'm \
missing here, like quotes, escape-characters etc? <br> <br>Read the --qtconf-prefix \
docs more carefully. The value you want is 'Qt'.<br> \
<br>Phil</font></div></div></div></font>


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