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2

I'm trying to install PyQt5 on my Ubuntu 12.04 box. So after downloading it from here I untarred it, ran python configure.py and make. Make however, results in the following:

cd qpy/ && ( test -f Makefile || /opt/qt5/bin/qmake /home/kram/Downloads/PyQt-gpl-5.0/qpy/qpy.pro -o Makefile ) && make -f Makefile 
make[1]: Map '/home/kram/Downloads/PyQt-gpl-5.0/qpy' is entered
cd QtCore/ && ( test -f Makefile || /opt/qt5/bin/qmake /home/kram/Downloads/PyQt-gpl-5.0/qpy/QtCore/QtCore.pro -o Makefile ) && make -f Makefile 
make[2]: Map '/home/kram/Downloads/PyQt-gpl-5.0/qpy/QtCore' is entered
g++ -c -pipe -fno-strict-aliasing -O2 -Wall -W -fPIC -D_REENTRANT -DQT_NO_DEBUG -DQT_CORE_LIB -I/opt/qt5/mkspecs/linux-g++ -I. -I. -I../../QtCore -I/usr/local/include/python2.7 -I/opt/qt5/include -I/opt/qt5/include/QtCore -I. -o qpycore_chimera.o qpycore_chimera.cpp
qpycore_chimera.cpp:21:20: fatal error: Python.h: File or folder does not exist
compilation terminated.
make[2]: *** [qpycore_chimera.o] Error 1
make[2]: Map '/home/kram/Downloads/PyQt-gpl-5.0/qpy/QtCore' is left
make[1]: *** [sub-QtCore-make_first] Error 2
make[1]: Map '/home/kram/Downloads/PyQt-gpl-5.0/qpy' is left
make: *** [sub-qpy-make_first-ordered] Error 2

(I translated some parts of the error message from Dutch to English, so some words may be a bit off from the normal wording..)

Does anybody what the problem is here? Where could the relevant Python.h file be?

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3 Answers 3

up vote 25 down vote accepted

The problem is that the include path for all python headers in every Makefile will be pointing to /usr/local/include/python2.7 , which should have been /usr/include/python2.7

There are 2 possible solutions for this. Either you can change all the occurrence of this in every Makefile or else you can create a symlink to that location

sudo ln -s /usr/include/python2.7 /usr/local/include/python2.7

Now you can run make

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1  
This is the correct answer, I tried and it works for me. Thanks. –  jgmao Aug 22 '13 at 16:25
1  
Works here as well on Ubuntu 12.04.3 x64 with Python 2.7.3 –  Marcus Ottosson Nov 16 '13 at 11:06
1  
@kramer Can you verify whether this worked for you. If yes please accept this as an answer. –  Rony Varghese Jan 27 '14 at 7:29
1  
This is the one, guys! :) –  mlvljr Jun 12 '14 at 20:40
up vote 0 down vote 
sudo apt-get install python-dev

Your missing the python header files.

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I thought that as well, but I've already got them installed. After running your command it says python-dev is already the newest version. –  kramer65 Jul 17 '13 at 11:45
    
What version are you installing for and what version of python-dev do you have –  Jakob Bowyer Jul 17 '13 at 11:47
    
I don't exactly know how to check the version of python-dev, but I ran sudo apt-get install python2.7-dev, which also told me I've got the latest version. –  kramer65 Jul 17 '13 at 12:07
    
Is Python.h in your include directory? is the library registered (ldconfig)? Is it the correct version? Did you try manually setting the path for python? –  Sebastian Lange Jul 17 '13 at 12:10
1  
Try running locate Python.h. If no results are given run find / -type f -name "Python.h" 2>/dev/null. This is where your file is located. Add this path to your inclusion directories calling python configure.py with correct parameter. Check configure help for known parameters. –  Sebastian Lange Jul 22 '13 at 8:30
up vote 0 down vote

The problem you're having is that PyQt assumes you're not using your distro's managed python, and instead defaults to looking for sip in /usr/local/include/python2.7.

Luckily, configure.py provides options to override the python and sip include locations:

python configure.py --sip-incdir /usr/include/python2.7 py_inc_dir=/usr/include/python2.7

This solution should preferred to symlinking /usr/include/python2.7 into /usr/local/include/python2.7 as that will enable manually installed software to pollute (or corrupt packages installed to) distro-managed paths.

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