title: no module named tensorflow.contrib
body: <p>I have this problem when I import tensorflow.contrib.slim </p>
  
  <pre><code>import tensorflow.contrib.slim as slim
  </code></pre>
  
  <p>i get this error message</p>
  
  <pre><code>Traceback (most recent call last):
  File "/home/toshiba/PFE/DocFace-master/src/tflib.py", line 28, in &lt;module&gt;
  import tensorflow.contrib.slim as slim
  
  ModuleNotFoundError: No module named 'tensorflow.contrib'
  </code></pre>
  
  <p>tensorflow is correctly installed and i found some solutions that said that the file name is tensorflow so it causes the problem but that is not the case in here</p>