[python] 일부 겹치는 문장 찾고 합치기 / difflib, SequenceMatcher

from difflib import SequenceMatcher

txt = '큐알론점안액0.3%(히알루론산나트륨)_'
pat = '히알루론산나트륨)_(1.05MG/0.35ML'
match = SequenceMatcher(None, txt, pat).find_longest_match(0, len(txt), 0, len(pat))
print(match)
print(txt[match.a: match.a + match.size])  # -> apple pie
print(pat[match.b: match.b + match.size])

sum_txt = txt[:match.a] + pat[match.b:]
print(sum_txt)