Virtualenv - workon command not found
<p>I followed these steps to set up virtualenv + virtualenvwrapper:</p>

<pre><code>$ sudo apt-get install python3-pip

$ sudo pip3 install virtualenv
$ sudo pip3 install virtualenvwrapper

$ mkdir ~/.virtualenvs

$ export WORKON_HOME=~/.virtualenvs

$ VIRTUALENVWRAPPER_PYTHON='/usr/bin/python3'

$ source /usr/local/bin/virtualenvwrapper.sh

$ mkvirtualenv venv
$ virtualenv venv
</code></pre>

<p>So far it was working fine but I restarted the shell and then I tried <code>workon venv</code> and now it says: <code>command not found</code></p>