<div dir="ltr">Kyle, <div>I had try your solution earlier, and I changed the correct path to locate the qt designer application. My widget won't load neither.</div><div>I had to revert back to earlier version of the pyqt. The designer tells me the pyqt5.dll failed to load. But I am sure its everything in the right place.</div><div>You don't have this issue with the recent version of the pyqt? I saw that only the mailing list you had this problem also.</div><div><br></div><div>Best Regards</div><div>Zoltán</div><div class="gmail_extra"><br><div class="gmail_quote">2017-01-06 15:39 GMT+01:00 Kyle Altendorf <span dir="ltr"><<a href="mailto:hda@fstab.net" target="_blank">hda@fstab.net</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On 2017-01-06 09:24, Zoltán Balogh wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I don't want to repeat myself, here are the description of the problem.<br>
<a href="http://stackoverflow.com/questions/41461261/pyqt-designer-custom-widget-plugins-not-loading?noredirect=1#comment70178010_41461261" rel="noreferrer" target="_blank">http://stackoverflow.com/quest<wbr>ions/41461261/pyqt-designer-<wbr>custom-widget-plugins-not-<wbr>loading?noredirect=1#<wbr>comment70178010_41461261</a><br>
<br>
I think someone who using the custom widget capability of the qt designer had this issue also.<br>
</blockquote>
<br></span>
PyQt5 wheels (started in PyQt5.6 iirc) do not include pyqt5.dll as it is a development tool.  The wheels are meant as support for distribution.<br>
<br>
I haven't gotten it setup well but I put together a pyqt5-tools package that provides the Qt development tools as well as the Designer plugin.  PyPi won't allow the latest version due to file size but you can get it direct from Github.<br>
<br>
<a href="https://github.com/altendky/pyqt5-tools/releases/tag/v5.7.dev10" rel="noreferrer" target="_blank">https://github.com/altendky/py<wbr>qt5-tools/releases/tag/v5.7.de<wbr>v10</a><br>
<br>
You can install directly with:<br>
<br>
pip install <a href="https://github.com/altendky/pyqt5-tools/releases/download/v5.7.dev10/pyqt5_tools-5.7.dev10-cp35-none-win_amd64.whl" rel="noreferrer" target="_blank">https://github.com/altendky/py<wbr>qt5-tools/releases/download/v5<wbr>.7.dev10/pyqt5_tools-5.7.dev10<wbr>-cp35-none-win_amd64.whl</a><br>
or<br>
pip install <a href="https://github.com/altendky/pyqt5-tools/releases/download/v5.7.dev10/pyqt5_tools-5.7.dev10-cp35-none-win32.whl" rel="noreferrer" target="_blank">https://github.com/altendky/py<wbr>qt5-tools/releases/download/v5<wbr>.7.dev10/pyqt5_tools-5.7.dev10<wbr>-cp35-none-win32.whl</a><br>
<br>
Maybe I'll take some time to catch up with v5.7.1 and cp36, but I'm not promising anything.<br>
<br>
Cheers,<br>
-kyle<br>
</blockquote></div><br></div></div>