regular expression match collection

[ajikoe]

Hello,

For example I have a string : "Halo by by by"
Then I want to take and know the possition of every "by"
how can I do it in python?

I tried to use:

p = re.compile(r"by")
m = p.search("Helo by by by")
print m.group() # result "by"
print m.span() # result (5,7)

How can I get the information of the other by ?

Sincerely Yours,
Pujo Aji

 

[Fredrik Lundh]

For example I have a string : "Halo by by by"
Then I want to take and know the possition of every "by"
how can I do it in python?

I tried to use:

p = re.compile(r"by")
m = p.search("Helo by by by")
print m.group() # result "by"
print m.span() # result (5,7)

How can I get the information of the other by ?

.... print m.span()
....
(5, 7)
(8, 10)
(11, 13)

</F>

 

[Steve Holden]

Hello,

For example I have a string : "Halo by by by"
Then I want to take and know the possition of every "by"
how can I do it in python?

I tried to use:

p = re.compile(r"by")
m = p.search("Helo by by by")
print m.group() # result "by"
print m.span() # result (5,7)

How can I get the information of the other by ?

Sincerely Yours,
Pujo Aji

You need re.findall() (or, equivalently, the findall() method of an re).

regards
Steve

 

[P]

Hello,

For example I have a string : "Halo by by by"
Then I want to take and know the possition of every "by"
how can I do it in python?

[ match.start() for match in p.finditer("Helo by by by") ]

see:
http://mail.python.org/pipermail/python-list/2004-December/255013.html

 

[ajikoe]

Thanks you...