Validating credit card numbers

python
import re

def check(card):
    if not re.search("^[456]\d{3}(-?\d{4}){3}$",card) or re.search(r"(\d)\1{3}", re.sub("-", "",card)):
        return False
    return True

for i in range(int(input())):
    print("Valid" if check(input()) else "Invalid")

Source: thepoorcoder.com

Similar codes

2 votes259 views1 answer
Python default input
Python
0 vote255 views1 answer
For pyton
Python
0 vote254 views1 answer
Create new column with mask pandas
Python
1 vote295 views10 answers
Python to java converter
Python
6 votes316 views3 answers
Cosine Similarity numpy
Python
21 votes226 views10 answers
How to print in python
Python
5 votes253 views1 answer
Mp4 get all images frame by frame python
Python
1 vote280 views1 answer
How to make a pythoon turtle follow another?
Python
36 votes234 views2 answers
Python3 iterate through indexes
Python
3 votes256 views3 answers
Virtualenv -p python3
Python