In article <[EMAIL PROTECTED]>,
Reinhold Birkenfeld <[EMAIL PROTECTED]> wrote:
> Doug Schwarz wrote:
>
> > Dave,
> >
> > I think eval might be what you're looking for:
> >
> > f = eval('len')
> > length = f([1,2,3])
>
> But only if the string given to eval is checked thorougly for allowed
> contents. Better use getattr.
>
> Reinhold
Actually, upon reading Peter Hansen's reply more carefully, I wil defer
to his approach, namely,
def foo():
print "foo"
f = globals()["foo"]
as I suspect that it will be more efficient. You still need to make
sure that the string in question is one of the keys in the globals()
dictionary or else handle the error -- just as with eval.
I don't see how getattr solves the original problem. What, exactly, is
the first argument to getattr?
--
Doug Schwarz
dmschwarz&urgrad,rochester,edu
Make obvious changes to get real email address.
--
http://mail.python.org/mailman/listinfo/python-list
