title: psycopg2 import error when ubuntu upgraded to 17.10 (from 17.04)
body: <p>Everything was working great until I upgraded the OS to Ubuntu 17.10. Now my Django project won't run (python manage.py runserver) because psycopg2 won't import. psycopg2 is already installed with pip (nothing has changed there). To be exact this is the error:</p>
  
  <pre><code>lib/python3.5/site-packages/psycopg2/.libs/libresolv-2-c4c53def.5.so: 
  symbol __res_maybe_init, version GLIBC_PRIVATE not defined in file 
  libc.so.6 with link time reference
  </code></pre>