http://code.activestate.com/recipes/tags/index-iterator/2012-10-23T19:51:55-07:00ActiveState Code Recipes2012-10-23T19:51:55-07:00Garretthttp://code.activestate.com/recipes/users/4181290/http://code.activestate.com/recipes/578302-coordinates-of-numpy-array-from-index-and-shape/

<p style="color: grey"> Python recipe 578302 by <a href="/recipes/users/4181290/">Garrett</a> (<a href="/recipes/tags/convert/">convert</a>, <a href="/recipes/tags/coordinates/">coordinates</a>, <a href="/recipes/tags/index/">index</a>, <a href="/recipes/tags/numpy/">numpy</a>, <a href="/recipes/tags/python/">python</a>). </p> <p>returns the coordinates of a numpy array given the index and the shape. A first_index_et function is given as example code</p>

2012-03-13T16:21:36-07:00Garretthttp://code.activestate.com/recipes/users/4181290/http://code.activestate.com/recipes/578071-fast-indexing-functions-greater-than-less-than-equ/

<p style="color: grey"> Python recipe 578071 by <a href="/recipes/users/4181290/">Garrett</a> (<a href="/recipes/tags/index/">index</a>, <a href="/recipes/tags/list/">list</a>, <a href="/recipes/tags/list_comprehension/">list_comprehension</a>, <a href="/recipes/tags/numpy/">numpy</a>, <a href="/recipes/tags/python/">python</a>). Revision 2. </p> <p>Oftentimes you want to find the index of a list-like object. Numpy arrays, for example, do not have a index member function. These get the job done quickly.</p> <p>Note: these do not raise exceptions, instead they return -1 on error. You should change that if you want different behavior.</p>

2010-04-07T22:20:21-07:00Joseph Reaglehttp://code.activestate.com/recipes/users/4171494/http://code.activestate.com/recipes/577179-create-book-index/

<p style="color: grey"> Python recipe 577179 by <a href="/recipes/users/4171494/">Joseph Reagle</a> (<a href="/recipes/tags/book/">book</a>, <a href="/recipes/tags/index/">index</a>, <a href="/recipes/tags/python/">python</a>). Revision 3. </p> <p>Reads a simple enumeration of "topic (page#|see) subtopic" to create a formatted book index. </p>

2009-01-21T15:37:13-08:00David Lamberthttp://code.activestate.com/recipes/users/4167420/http://code.activestate.com/recipes/576625-poor-mans-mgrid/

<p style="color: grey"> Python recipe 576625 by <a href="/recipes/users/4167420/">David Lambert</a> (<a href="/recipes/tags/index/">index</a>, <a href="/recipes/tags/index_tricks/">index_tricks</a>, <a href="/recipes/tags/method/">method</a>, <a href="/recipes/tags/mgrid/">mgrid</a>, <a href="/recipes/tags/numerical/">numerical</a>, <a href="/recipes/tags/numerical_methods/">numerical_methods</a>, <a href="/recipes/tags/numpy/">numpy</a>, <a href="/recipes/tags/scipy/">scipy</a>, <a href="/recipes/tags/trick/">trick</a>). </p> <p>Python 3 code. scipy.mgrid is a useful! This short implementation comes without installing numpy.</p>

2008-08-16T19:41:37-07:00nosklohttp://code.activestate.com/recipes/users/4166478/http://code.activestate.com/recipes/576426-get-index-of-element-in-list-using-identity/

<p style="color: grey"> Python recipe 576426 by <a href="/recipes/users/4166478/">nosklo</a> (<a href="/recipes/tags/compare/">compare</a>, <a href="/recipes/tags/comparision/">comparision</a>, <a href="/recipes/tags/find/">find</a>, <a href="/recipes/tags/identity/">identity</a>, <a href="/recipes/tags/index/">index</a>, <a href="/recipes/tags/is/">is</a>, <a href="/recipes/tags/same_object/">same_object</a>, <a href="/recipes/tags/search/">search</a>). Revision 2. </p> <p>my_list.index(element) returns the index of the element using common comparision (as in == or __eq__() or __cmp__()). If you need to find an element on the list using identity comparing (is) then this function can do it for you</p>