HackerRank Python Solution - Errors and Exception - Incorrect Regex

• You are given a string S.

• Your task is to find out whether S is a valid regex or not.

Input Format:

• The first line contains integer T, the number of test cases.

• The next T lines contain the string S.

Constraints:

• 0 < T < 100

Output Format:

Print "True" or "False" for each test case without quotes.

Sample Input:

2
.*\+
.*+

Sample Output:

True
False

Explanation:

• .*\+ : Valid regex.

• .*+: Has the error multiple repeats. Hence, it is invalid.

Solution:

import re

T = int(input())

for _ in range(T):
    output = True
    try:
        re.compile(input())
    except re.error:
        output = False
    print(output)

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