Regex not working

Question

Sorry but my regular expression do not work as I would like and I guess it is okay (based on what I learned and what I understand).

pattern = r'(^1|^8|^9)[0-9]{7}'

This is my regular expression, it is supposed to validate a phone number that starts with 1, 8 or 9 and its length should be 8, but my regex takes inputs greater than 8 as valid.

I can solve it by putting in the conditional that validates the phone numbers that the length of the str should be 8:

if re.match (pattern, * input *) and len (* input *) == 8:

But I would like to solve it with a regular expression that meets the requirement.
(IDK if it is possible).

Answer 1

What worked for me was specifying that the string should end after there’s been 8 characters. $ in the end of the pattern. Hope it works