http://code.activestate.com/recipes/tags/iteration-map/2014-03-29T12:43:26-07:00ActiveState Code Recipes2012-02-18T01:34:55-08:00Stephen Chappellhttp://code.activestate.com/recipes/users/2608421/http://code.activestate.com/recipes/578046-easily-write-nested-loops/

<p style="color: grey"> Python recipe 578046 by <a href="/recipes/users/2608421/">Stephen Chappell</a> (<a href="/recipes/tags/iteration/">iteration</a>, <a href="/recipes/tags/nested/">nested</a>). </p> <p>The "nest" generator function in this module is provided to make writing nested loops easier to accomplish. Instead of writing a for loop at each level, one may call "nest" with each sequence as an argument and receive items from the sequences correctly yielded back to the caller. A test is included at the bottom of this module to demonstrate how to use the code.</p>

2014-03-29T12:43:26-07:00Tal Einathttp://code.activestate.com/recipes/users/2892534/http://code.activestate.com/recipes/576801-reversed-ranges/

<p style="color: grey"> Python recipe 576801 by <a href="/recipes/users/2892534/">Tal Einat</a> (<a href="/recipes/tags/iteration/">iteration</a>, <a href="/recipes/tags/range/">range</a>, <a href="/recipes/tags/reverse/">reverse</a>). Revision 16. </p> <p>A simple function for efficiently iterating over ranges in reverse.</p> <p>This is equivalent to reversed(range(...)) but somewhat more efficient.</p>