title: remote: ImportError: No module named gitlab
body: <p>I wrote gitlab hook with python. And added to post-receive hooks in gitlab server. When i push to remote origin server from my laptop, i get following error. But it works when i run script manually in gitlab server. How can i solve problem?</p>
  
  <pre><code> Counting objects: 3, done.
   Writing objects: 100% (3/3), 240 bytes | 0 bytes/s, done.
   Total 3 (delta 0), reused 0 (delta 0)
   remote: Traceback (most recent call last):
   remote:   File "push.py", line 4, in &lt;module&gt;
   remote:     import gitlab
   remote: ImportError: No module named gitlab
  </code></pre>