title: Error: could not determine PostgreSQL version from "10.4"
body: <blockquote>
  <p>Complete output from command python setup.py egg_info: running
  egg_info creating pip-egg-info/psycopg2.egg-info writing
  pip-egg-info/psycopg2.egg-info/PKG-INFO writing top-level names to
  pip-egg-info/psycopg2.egg-info/top_level.txt writing dependency_links
  to pip-egg-info/psycopg2.egg-info/dependency_links.txt writing
  manifest file 'pip-egg-info/psycopg2.egg-info/SOURCES.txt' Error:
  could not determine PostgreSQL version from '10.4'</p>
  <p>Command &quot;python setup.py egg_info&quot; failed with error code 1 in /tmp/pip-install-lR9u0X/psycopg2/</p>
  </blockquote>
  <p>Does anyone know what's the issue? Trying to run pgadmin in virtualenv and can't figure out because of this error.</p>