title: Error Installing Ice 3.6 for Python on Ubuntu 16.04
body: <p>I tried to install Ice 3.6 for python by pip:</p>
  
  <pre><code>pip install zeroc-ice
  </code></pre>
  
  <p>and got these errors:</p>
  
  <pre><code>Collecting zeroc-ice
    Using cached zeroc-ice-3.6.3.tar.gz
  Building wheels for collected packages: zeroc-ice
    Running setup.py bdist_wheel for zeroc-ice ... error
    Complete output from command /home/phan/anaconda2/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-D__B7T/zeroc-ice/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" bdist_wheel -d /tmp/tmpKbigqspip-wheel- --python-tag cp27:
    WARNING: '' not a valid package name; please use only .-separated package names in setup.py
  ...
  ...
  cc1plus: warning: command line option ‘-Wstrict-prototypes’ is valid for C/ObjC but not for C++
      src/ice/cpp/src/IceUtil/SHA1.cpp:19:31: fatal error: openssl/sha.h: Aucun fichier ou dossier de ce type
      compilation terminated.
      error: command 'gcc' failed with exit status 1
  </code></pre>
  
  <p>I used anaconda2 for python 2.7. </p>