Difference in regex between Python and Rubular?
- by Rosarch
In Rubular, I have created a regular expression:
(Prerequisite|Recommended): (\w|-| )*
It matches the bolded:
Recommended: good comfort level with computers and some of the arts.
Summer. 2 credits. Prerequisite:
pre-freshman standing or permission of
instructor. Credit may not be applied
toward engineering degree. S-U
grades only.
Here is a use of the regex in Python:
note_re = re.compile(r'(Prerequisite|Recommended): (\w|-| )*', re.IGNORECASE)
def prereqs_of_note(note):
match = note_re.match(note)
if not match:
return None
return match.group(0)
Unfortunately, the code returns None instead of a match:
>>> import prereqs
>>> result = prereqs.prereqs_of_note("Summer. 2 credits. Prerequisite: pre-fres
hman standing or permission of instructor. Credit may not be applied toward engi
neering degree. S-U grades only.")
>>> print result
None
What am I doing wrong here?
