Capturing subset of a string using Python's regex -

Capturing subset of a string using Python's regex -

i have string looks this:

>bounded_rna_of:1ddl:elength : 1

regex wise can formed way:

>bounded_rna_of:(\w+):(\w)length : 1

at end of day want extract 1ddl , e.

but why regex failed?

import re seq=">bounded_rna_of:1ddl:elength : 1" match = re.search(r'(>bounded_rna_of:(\w+):(\w)length : 1)',seq) print match.group() # prints this: # >bounded_rna_of:1ddl:elength : 1

what's way it?

this due global catching parenthesis, should grab 2 needed elements.

import re seq=">bounded_rna_of:1ddl:elength : 1" match = re.search(r'>bounded_rna_of:(\w+):(\w)length : 1',seq) print match.group(1), match.group(2)

python regex