Fix Python – How to install PyQt4 on Windows using pip?

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Question

Asked By – Anna

I’m using Python 3.4 on Windows. When I run a script, it complains

ImportError: No Module named 'PyQt4'

So I tried to install it, but pip install PyQt4 gives

Could not find any downloads that satisfy the requirement PyQt4

although it does show up when I run pip search PyQt4. I tried to pip install python-qt, which installed successfully but that didn’t solve the problem.

What am I doing wrong?

Now we will see solution for issue: How to install PyQt4 on Windows using pip?

Answer

Here are Windows wheel packages built by Chris Golke – Python Windows Binary packages – PyQt

In the filenames cp27 means C-python version 2.7, cp35 means python 3.5, etc.

Since Qt is a more complicated system with a compiled C++ codebase underlying the python interface it provides you, it can be more complex to build than just a pure python code package, which means it can be hard to install it from source.

Make sure you grab the correct Windows wheel file (python version, 32/64 bit), and then use pip to install it – e.g:

C:\path\where\wheel\is\> pip install PyQt4-4.11.4-cp35-none-win_amd64.whl

Should properly install if you are running an x64 build of Python 3.5.

This question is answered By – Ivo

This answer is collected from stackoverflow and reviewed by FixPython community admins, is licensed under cc by-sa 2.5 , cc by-sa 3.0 and cc by-sa 4.0