title: Is there a python equivalent of Ruby's 'rvm'?
body: <p><strong>Q:</strong> Do we have anything functionally equivalent in Python to the <a href="http://rvm.beginrescueend.com/workflow/rvmrc/" rel="noreferrer">Ruby version manager 'rvm'</a>? </p>
  
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  <p>(<em>RVM</em> lets you easily switch <strong>completely</strong> between different versions of the ruby interpreter <strong>and</strong> different sets of gems (modules). Everything concerning download-build-install-switch  of interpreter(-s) and gems gets taken care of by invoking rvm. It is all run under your regular user account.)</p>