title: Is it possible to set environment variables in Google's Colaboratory?
body: <p>I am running some Python scripts in Google's <a href="https://colab.research.google.com/" rel="noreferrer">Colaboratory</a> platform. Now, I need to set some environment variables of the system. Like the following shows:</p>
  
  <pre><code>!export PATH=drive/app/tf-models-fork/research;drive/app/tf-models-fork/research/object_detection;drive/app/tf-models-fork/research/slim;$PATH
  </code></pre>
  
  <p>I tried to add the location to the variable PATH. However, I am getting the following errors:</p>
  
  <pre><code>/bin/sh: 1: drive/app/tf-models-fork/research/object_detection: Permission denied
  /bin/sh: 1: drive/app/tf-models-fork/research/slim: Permission denied
  /bin/sh: 1: drive/app/tf-models-fork/research: Permission denied
  </code></pre>
  
  <p>Is there any way to set the environment variables in this platform?</p>