Python vs. Perl, which is better to learn?

[Fredrik Lundh]

Mark McEahern wrote:

> This switches the first and last words of a sentence.  I didn't bother
> putting the period back in there or sentence-casing the new first word.
>
> import re
> s = "Explicit is better than implicit."
> pat = re.compile("^(\w+)(.* )(\w+)\.$")
> m = pat.search(s)
> if m:
>     print "%s%s%s" % (m.groups()[2], m.groups()[1], m.groups()[0])

instead of using groups three times, you can pass multiple
arguments to the group method:

    m = pat.search(s)
    if m:
        print "%s%s%s" % (m.group(3, 2, 1))

or you can use group references in the sub method:

    print pat.sub(r"\1\2\3", s)

</F>