[PyQt] Building PyQt5 on Windows

Wallboy wallboy at wallboy.ca
Sat Jun 3 11:02:32 BST 2017

So how do I get a working build for the non commercial version after the 
nmake install step?

On 6/3/2017 3:26 AM, Phil Thompson wrote:
> On 03/06/2017 03:43, Wallboy wrote:
>> I have been using the "pip install PyQt5" version in my my main Python
>> sites-package. I'm interested in building some custom builds of PyQt
>> to test in a virtualenv. So I first decided to just figure out how to
>> get a working vanilla build before trying to customize my own build. I
>> followed  the instructions here:
>> http://pyqt.sourceforge.net/Docs/PyQt5/installation.html and also here
>> for Windows: https://stackoverflow.com/a/40779370
>> I expected to get the same structure in my site-packages folder for my
>> "pip install PyQt5" version, however after the build I don't have the
>> "Qt" folder with all the bin/plugins/etc folders containing the dlls.
>> However, I do see the dll files were created in my build folder under
>> each of the "release" folders. Also I don't see any generation of the
>> executables for pyuic or pyrcc or QtWebEngineProcess.exe.
>> I'm using PyCharm for my IDE and I have created a project pointing to
>> that virtualenv (and confirmed it was the directory used in the
>> configure.py output). But when I try to import any PyQt5 modules it
>> tells me it can't find the module in the __init__.py file. The
>> __init__.py version that got built for me is just all comments.
>> However the one that comes with the pip install PyQt5 has:
>> import os as _os
>> _path = _os.path.dirname(__file__) + '\\Qt\\bin;' + _os.environ['PATH']
>> _os.environ['PATH'] = _path
>> I'm confused why my built version differs so much from the version you
>> get installed from pip install PyQt5? Is there another step I'm
>> missing?
> Yes. Commercial users are provided a tool to build a full wheel.
> A wheel is just a zip file so you can take it apart and change its 
> contents as you wish.
> Phil

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