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Question

Answer 1

+3 A:

You need to escape the brackets [ and ] as \[ and \].

\[\s+@twitter\s+(?P<login>\w+):(?P<password>.*?)\s+\]

Jeremy Stein 2009-10-27 19:41:59

oh, thank you. but why does statements after if execute? how to know if re finded anything?

valya 2009-10-27 19:44:02

Well, it's still a regular expression. It just matches any of the literal characters between [ and ]. But the login and password groups don't exist, so you get the error.

Jeremy Stein 2009-10-27 19:46:15

Answer 2

+2 A:

The [ and ] are special regular expression characters. Escape them to match literal [ and ]. See Regular Expression Syntax.

Blair Conrad 2009-10-27 19:42:00

oh, thank you. but why does statements after if execute? how to know if re finded anything?

valya 2009-10-27 19:42:52

It's' not a matter of the statements being invalid, just that your expression attempts to match things that you didn't mean to - essentially, you're trying to match any of the characters within the [], not the special regular expression constructs you made. You can tell you matched something because reOptions is not None. You can use MatchObject.group with no arguments to see the entire string that was matched.

Blair Conrad 2009-10-27 19:47:32

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python re: no such group

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