Please help me i don't know why this doesn't work. i think group 1 in varnumpattern doesn't work properly

Question

"""
You are given a number input, and need to check if it is a valid phone number.
A valid phone number has exactly 8 digits and starts with 1, 8 or 9.
Output "Valid" if the number is valid and "Invalid", if it is not.
"""

import re

possiblevnum = input()

vnumpattern = r"(1|8|9)(\d.......)?"

num_matching = re.match(vnumpattern, possiblevnum)

"""
the reason i added isinstance is because if i didn't, after the first
number, you could input letters along with numbers that would still
count as valid
"""

if num_matching and isinstance(possiblevnum, int):
print('Valid')
else:
print('Invalid')

Answer 1

vnumpattern = r"[189]\d{7}quot;

if num_matching:

Answer 2

try it now

Answer 3

i am not sure why, but it worked for all of them except test case 3. i cannot view what the input is so i don't know. thank you for the response though.

Answer 4

nvm i found out what the problem was

Answer 5

Yeah what you edited was the solution I found as well. Thanks for the help. Your original response helped me find the correct answer still.