title: How to install SIP and PyQt on a virtual environment?
body: <p>I am new to <code>virtualenv</code>. I want to install spyder, which require <code>PyQt4</code>, which requires <code>SIP</code>.</p>
  
  <p><code>pip</code> doesn't work, so I downloaded <code>SIP</code>, and I did the following commands:</p>
  
  <pre><code>python configure.py
  make
  make install
  </code></pre>
  
  <p>But I received this error:</p>
  
  <pre><code>make[1]: entrant dans le répertoire « /stck2/stck2.2/ptoniato/python/pip/virtualenv-1.10.1/provaenv/build/SIP/sipgen »
  cp -f sip /stck2/stck2.2/ptoniato/python/pip/virtualenv-1.10.1/provaenv/bin/sip
  make[1]: quittant le répertoire « /stck2/stck2.2/ptoniato/python/pip/virtualenv-1.10.1/provaenv/build/SIP/sipgen »
  make[1]: entrant dans le répertoire « /stck2/stck2.2/ptoniato/python/pip/virtualenv-1.10.1/provaenv/build/SIP/siplib »
  cp -f sip.so /stck2/stck2.2/ptoniato/python/pip/virtualenv-1.10.1/provaenv/lib/python2.7/site-packages/sip.so
  strip /stck2/stck2.2/ptoniato/python/pip/virtualenv-1.10.1/provaenv/lib/python2.7/site-packages/sip.so
  cp -f /stck2/stck2.2/ptoniato/python/pip/virtualenv-1.10.1/provaenv/build/SIP/siplib/sip.h /usr/local/python/include/python2.7/sip.h
  cp: impossible de supprimer « /usr/local/python/include/python2.7/sip.h »: Permission non accordée
  make[1]: *** [install] Erreur 1
  make[1]: quittant le répertoire « /stck2/stck2.2/ptoniato/python/pip/virtualenv-1.10.1/provaenv/build/SIP/siplib »
  make: *** [install] Erreur 2
  </code></pre>
  
  <p>Impossible de supprimer means Impossible to erase.</p>
  
  <p>I have no root access to this pc. I think that's there is a conflict between the python package that is installed by default on this pc and the <code>virtualenv</code> that I am creating. </p>
  
  <p>How can I resolve the problem?</p>