title: Problems with virtualenvwrapper teriminal startup
body: <p>Recently I installed virtualenvwrapper using pip, and now every time that I start the terminal (I use Ubuntu16.04)it shows me this:</p>
  
  <pre><code>virtualenvwrapper.user_scripts creating /home/jorge/.virtualenvs/premkproject
  virtualenvwrapper.user_scripts creating /home/jorge/.virtualenvs/postmkproject
  virtualenvwrapper.user_scripts creating /home/jorge/.virtualenvs/initialize
  virtualenvwrapper.user_scripts creating /home/jorge/.virtualenvs/premkvirtualenv
  virtualenvwrapper.user_scripts creating /home/jorge/.virtualenvs/postmkvirtualenv
  virtualenvwrapper.user_scripts creating /home/jorge/.virtualenvs/prermvirtualenv
  virtualenvwrapper.user_scripts creating /home/jorge/.virtualenvs/postrmvirtualenv
  virtualenvwrapper.user_scripts creating /home/jorge/.virtualenvs/predeactivate
  virtualenvwrapper.user_scripts creating /home/jorge/.virtualenvs/postdeactivate
  virtualenvwrapper.user_scripts creating /home/jorge/.virtualenvs/preactivate
  virtualenvwrapper.user_scripts creating /home/jorge/.virtualenvs/postactivate
  virtualenvwrapper.user_scripts creating /home/jorge/.virtualenvs/get_env_details
  </code></pre>
  
  <p>How can I can stop these messages?</p>