title: using map with None type functions
body: <p>exists in python an equivalent to Haskell's mapM_ function?</p>
  <p>example (&quot;print()&quot; is here only a placeholder for every function with Signature: a -&gt; None):</p>
  <pre><code>#pseudo code!!!
  map (lambda x: print(x), [1,2,3])
  </code></pre>
  <p>like in Haskell:</p>
  <pre><code>mapM_ :: (Foldable t, Monad m) =&gt; (a -&gt; m b) -&gt; t a -&gt; m ()
  &gt; mapM_ print [1,2]
  &gt; 1
  &gt; 2
  </code></pre>