title: cannot install functools32 on google colab
body: <p>I'm new to ML/DL and using google colab as my DL tool. I'm currently trying to setup <a href="https://github.com/moabitcoin/holy-edge/blob/master/README.md" rel="nofollow noreferrer">tensorflow/HED</a> on google colab. When I ran <code>pip install -r requirements.txt</code>, I got an error like </p>
  
  <pre><code>Collecting functools32==3.2.3.post2 (from -r requirements.txt (line 20))
  Using cached https://files.pythonhosted.org/packages/c5/60/6ac26ad05857c601308d8fb9e87fa36d0ebf889423f47c3502ef034365db/functools32-3.2.3-2.tar.gz  
  Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-install-zhhba6da/functools32/"
  </code></pre>
  
  <p>I've updated setuptools to the newest version 
  (<code>Requirement already up-to-date: setuptools in /usr/local/lib/python3.6/dist-packages (40.8.0)</code>). It however doesn't seem solve the issue.</p>
  
  <p>Google colab uses python 3.6.7.</p>