title: After unsuccessful try to install google.colab, my Jupyter notebook does not work and throws this error : "Uncaught exception in ZMQStream"
body: <p>I am a mac user, I tried to install google colab using <code>pip install google-colab</code> I got a problem while building a wheel for pandas and it failed. After that, I can't run my Jupyter notebooks cells.</p>
  <p>I ran Jupyter notebook. I can open notebooks, but when I want to run cells nothing executes. I check the command line I found this error:</p>
  <pre><code>Uncaught exception in ZMQStream
  </code></pre>
  <p>Any kind of help would be greatly appreciated.</p>