title: Python package not found in jupyter even after running pip install
body: <p>I want to use <code>numpy</code> in my Jupyter notebook. However, I came across a weird problem. Despite the fact that:</p>
  
  <ol>
  <li>I have a <code>numpy</code> installed in my default <code>python3</code>.</li>
  <li>From Jupyter I've run a command <code>!pip install numpy</code> and <code>!pip3 install numpy</code>.</li>
  <li>I restarted my <code>notebook</code> multiple times.</li>
  </ol>
  
  <p>After running a command <code>import numpy</code> I get a message that package is not found:</p>
  
  <blockquote>
    <p>ImportError: No module named 'numpy'</p>
  </blockquote>
  
  <p>I use <code>python3</code> kernel of course.</p>
  
  <p>Has anyone come across similar problem?</p>