title: Fatal error while compiling PyQt5: Python.h does not exist
body: <p>I'm trying to install PyQt5 on my Ubuntu 12.04 box. So after downloading it from <a href="http://www.riverbankcomputing.co.uk/software/pyqt/download5" rel="noreferrer">here</a> I untarred it, ran <code>python configure.py</code> and <code>make</code>. Make however, results in the following:</p>
  <pre><code>cd qpy/ &amp;&amp; ( test -f Makefile || /opt/qt5/bin/qmake /home/kram/Downloads/PyQt-gpl-5.0/qpy/qpy.pro -o Makefile ) &amp;&amp; make -f Makefile 
  make[1]: Map '/home/kram/Downloads/PyQt-gpl-5.0/qpy' is entered
  cd QtCore/ &amp;&amp; ( test -f Makefile || /opt/qt5/bin/qmake /home/kram/Downloads/PyQt-gpl-5.0/qpy/QtCore/QtCore.pro -o Makefile ) &amp;&amp; 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
  </code></pre>
  <p>(I translated some parts of the error message from Dutch to English, so some words may be a bit off from the normal wording..)</p>
  <p>Does anybody what the problem is here? Where could the relevant Python.h file be?</p>