Eduard Bondarenko <eduardbpy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:
Well, Perl also dynamic language, but except the usage of the additional analyser tools he provides 'use warning' directive and many Perl's developers use this feature.
Why you do not want to add such feature in Python ?
One reason would be because it doesn't exist in Perl either: $ cat test.pl use warnings; $foo = <STDIN>; if($foo eq "bar") { print("hello"); } else { print(undefined_variable) } $ perl test.pl Name "main::undefined_variable" used only once: possible typo at test.pl line 7. foo print() on unopened filehandle undefined_variable at test.pl line 6, <STDIN> line 1. Note that you only get the warning about the undefined variable when the code actually enters that branch. You are getting a warning at compile time because you used the variable only once, but I don't think that's what you'd like to add to Python. Or is it? Best, -Nikolaus -- GPG encrypted emails preferred. Key id: 0xD113FCAC3C4E599F Fingerprint: ED31 791B 2C5C 1613 AF38 8B8A D113 FCAC 3C4E 599F »Time flies like an arrow, fruit flies like a Banana.«