On Mon, May 10, 2010 at 10:23 PM, Terry Reedy <tjre...@udel.edu> wrote: > On 5/10/2010 5:35 AM, James Mills wrote: >> >> On Mon, May 10, 2010 at 6:50 PM, Xavier Ho<cont...@xavierho.com> wrote: >>> >>> Have I missed something, or wouldn't this work just as well: >>> >>>>>> list_of_strings = ['2', 'awes', '3465sdg', 'dbsdf', 'asdgas'] >>>>>> [word for word in list_of_strings if word[0] == 'a'] >>> >>> ['awes', 'asdgas'] >> >> I would do this for completeness (just in case): >> >>>>>> [word for word in list_of_strings if word and word[0] == 'a'] >> >> Just guards against empty strings which may or may not be in the list. > > ... word[0:1] does the same thing. All Python programmers should learn to > use slicing to extract a char from a string that might be empty. > The method call of .startswith() will be slower, I am sure.
Why? Isn't slicing just sugar for a method call? \t -- http://mail.python.org/mailman/listinfo/python-list
