"eval vs operator.methodcaller" - which is better?
Chris Angelico
rosuav at gmail.com
Mon Mar 18 10:03:03 EDT 2013
On Tue, Mar 19, 2013 at 12:58 AM, Laxmikant Chitare
<laxmikant.general at gmail.com> wrote:
> Aha, that was smart Chris. Thank you.
>
> But this raises another question in my mind. What is the use case for
> operator.methodcaller ?
Most of the operator module is functional versions of what can be done
elsewhere with operators. They're not generally needed unless you
specifically need a function, such as for a map() call:
>>> a=[1,2,3,4,5]
>>> b=[50,40,30,20,10]
>>> list(map(operator.add,a,b))
[51, 42, 33, 24, 15]
(The list() call is unnecessary in Python 2, but means this will also
work in Python 3.)
ChrisA
More information about the Python-list
mailing list