title: Is there a map without result in python?
body: <p>Sometimes, I just want to execute a function for a list of entries -- eg.:</p>
  
  <pre><code>for x in wowList:
     installWow(x, 'installed by me')
  </code></pre>
  
  <p>Sometimes I need this stuff for module initialization, so I don't want to have a footprint like x in global namespace. One solution would be to just use map together with lambda:</p>
  
  <pre><code>map(lambda x: installWow(x, 'installed by me'), wowList)
  </code></pre>
  
  <p>But this of course creates a nice list [None, None, ...] so my question is, if there is a similar function without a return-list -- since I just don't need it.</p>
  
  <p>(off course I can also use _x and thus not leaving visible footprint -- but the map-solution looks so neat ...)</p>