re.groupとre.compileとre.VERBOSE - Qiita

import re s = ('arn:aws:cloudformation:us-east-2:123456789012:stack/' 'mystack-mynestedstack-sggfrhxhum7w' '/f449b250-b969-11e0-a185-5081d0136786') # [\w-]で英数字もしくはハイフンの意味になる # group名をつけています m = re.match(r'arn:aws:cloudformation:(?P<region>[\w-]+):(?P<account_id>[\d]+)' r':stack/(?P<stack_name>[\w-]+)/[\w-]+', s) if m: # group名でアクセスできます print(m.group('region')) print(m.group('account_id')) print(m.