regex python group overwrite

Question

the string is 'POSIX TAR ARCHIVE (GNU)' the regex pattern '(TAR)|(POSIX)'

python code :

import re 
pattern = '(TAR)|(POSIX)'
string = 'POSIX TAR ARCHIVE (GNU)'
match = re.search(pattern, string , re.IGNORECASE)
match.groups()

the result is only POSIX not tar why??

Use `re.findall` to get multiple matches. And use `'TAR|POSIX'`. `print(re.findall(r'TAR|POSIX', s))` — Wiktor Stribiżew, May 02 '18 at 11:32
Dupe of [How can I find all matches to a regular expression in Python?](http://stackoverflow.com/questions/4697882/how-can-i-find-all-matches-to-a-regular-expression-in-python). — Wiktor Stribiżew, May 02 '18 at 11:33
Possible duplicate of [How can I find all matches to a regular expression in Python?](https://stackoverflow.com/questions/4697882/how-can-i-find-all-matches-to-a-regular-expression-in-python) — Uyghur Lives Matter, May 02 '18 at 13:55

AverageJoe9000 · Accepted Answer · 2018-05-03T05:59:37.547

0

try this:

re.findall(pattern, string, re.IGNORECASE)

re.findall matches all the patterns you are looking for,
while re.search finds and returns the first match from the string.

edited May 03 '18 at 05:59

answered May 02 '18 at 11:33

AverageJoe9000

1

Please update your answer with a bit of explanation about why you need to use `findall` in this case. – Sean the Bean May 02 '18 at 15:28

1 Answers1