On Jun 29, 11:19 am, Joru <avenp...@gmail.com> wrote:
> ah, I just want to match in the end of line only
> so change the rule "wr$" would get what I want?
>
> > Square brackets are for character groups, not literal strings. "wr:"
> > is just a string so it should be "wr:", not "[wr:]". Also, you want to
> > match the beginning of the line, not the end, so it should be
> > something like "^wr:", not "wr$". Unless I've missed something.
When you split your test string on newlines you get:
"wr:"
" one bunny"
" two bunny"
" wr: three bunny"
In the first line "wr:" is at both the beginning and end of the
string, as it is the whole string. The next two lines do not feature
"wr:" at all. On the last line "wr:" is at neither the beginning nor
the end of the string - it has " " in front, and " three bunny"
afterwards. Depending on what you want to do you might want to call
strip() on each line, in which case the 4th line would become "wr:
three bunny", making wr: the beginning of the line. It depends what
you want to do, and anyway I can't write your program for you.
Essentially, you just need to spend some time reading a bit more about
regular expressions:
http://docs.python.org/library/re.html
James
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