Why this program is not working?

Question

patternu = r"a(bc)(f(g(h))(de)i"

match = re.match(patternu, "abcfghdeijklmnop")
if match:
print(match.group())
print(match.group(0))
print(match.group(1))
print(match.group(2))
print(match.groups())
print(match.group(3))
print(match.group(4))
print(match.group(5))
print(match.group(6))

Answer 1

well, a ")" is missing and there is only 6 groups (index from 0 to 5). Here is fixed code: https://code.sololearn.com/csFEVGM68mnQ/?ref=app