title: ModuleNotFoundError: No module named 'virtualenv.seed.embed.via_app_data' when I created new env by virtualenv
body: <p>I had install virtualenv, created a venv by virtualenv since last month but now I can't create other env.
  In Ubuntu 20.04 terminal, I had tried:</p>
  <pre><code>$virtualenv my_env
  </code></pre>
  <p>But its result is</p>
  <pre><code>ModuleNotFoundError: No module named 'virtualenv.seed.embed.via_app_data'
  </code></pre>
  <p>After that, I checked its version:</p>
  <pre><code>$virtualenv --version
  </code></pre>
  <p>and get:</p>
  <pre><code>virtualenv 20.0.17 from /usr/lib/python3/dist-packages/virtualenv/__init__.py
  </code></pre>
  <p>I also checked it by $pip3 list and virtualenv still exists. It seem that problem came after I had install Anaconda.</p>