How to install SIP & PyQT on windows 7

Question

I\'m a newbie to Python environment & really struggling to install SIP & PyQt on my Win 7 machine.

This is what I\'ve done so far,

1. I\'

Answer 1

This is for all that want to build PyQt4 with latest Qt4 and Python 3.4.x.

Download Visual Studio 2010 from here: http://download.cnet.com/Microsoft-Visual-Studio-2010-Ultimate/3000-2383_4-75450998.html

then install it.

Download SIP source code (in my case version 4.19.5) from here: https://www.riverbankcomputing.com/software/sip/download

Download PyQt4 source code (in my case version 4.12.1) from here: https://www.riverbankcomputing.com/software/pyqt/download

Extract SIP and PyQt .zip archive in \Users\your_username\Desktop\compilation\

Download latest Qt 4.x (vs2010 version) installer from here: http://download.qt.io/archive/qt/

Install Qt (in my case qt-opensource-windows-x86-vs2010-4.8.6.exe).

Open a command prompt (use this one for all the process) and execute these commands:

cd \Users\\Desktop\compilation\sip-4.19.5
python configure.py
"C:\Qt\4.8.6\bin\qtvars.bat"

In the output take note of QMAKESPEC value, in my case win32-msvc2010, then use it later on --spec option for PyQt4 configure-ng script.

If the current directory has been changed, execute again:

cd \Users\\Desktop\compilation\sip-4.19.5

Now, if you use 64-bit version of Python execute:

"C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\vcvarsall.bat"

otherwise, if you use 32-bit version of Python execute:

"C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\bin\vcvars32.bat"
nmake
nmake install
cd \Users\\Desktop\compilation\PyQt4_gpl_win-4.12.1

Now use previous QMAKESPEC value in --spec option:

python configure-ng.py --spec win32-msvc2010
nmake
nmake install

That's all ;-)

NOTE: in some cases, in order to avoid this error

ImportError: DLL load failed: The specified procedure could not be found.

it is necessary to copy .dll files from

C:\Qt\4.8.6\bin

to

C:\Python34\Lib\site-packages\PyQt4