python map string split list

Question

I am trying to map the str.split function to an array of string. namely, I would like to split all the strings in a string array that follow the same format. Any id

Answer 1

Though it isn't well known, there is a function designed just for this purpose, operator.methodcaller:

>>> from operator import methodcaller
>>> a = ['2011-12-22 46:31:11','2011-12-20 20:19:17', '2011-12-20 01:09:21']
>>> map(methodcaller("split", " "), a)
[['2011-12-22', '46:31:11'], ['2011-12-20', '20:19:17'], ['2011-12-20', '01:09:21']]

This technique is faster than equivalent approaches using lambda expressions.