How do I say "Is this a function"?

[Dan Bishop]

On Apr 26, 6:17 pm, John Henry <john106he... at hotmail.com> wrote:
> How do I determine is something a function?
>
> For instance, I don't want to relying on exceptions below:
>
> def f1():
>    print "In f1"
>
> def f3():
>    print "In f3"
>
> def others():
>    print "In others"
>
> for i in xrange(1,3):
>    fct = "f%d()"%(i+1)
>    try:
>       exec fct
>    except:
>       others()
>
> I wish to say:
>
>    if value of fct is a funtion, invoke it, otherwise invoke others().
>
> Thanks,

hasattr(fct, '__call__')

And be careful about using the exec statement.