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You are given a string S.
Your task is to find out whether S is a valid regex or not.
The first line contains integer T, the number of test cases.
The next T lines contains the string S.
Print “True” or “False” for each test case without quotes.
2 .*\+ .*+
.*\+ : Valid regex..*+ : Has the error multiple repeat. Hence, it is invalid.
import re for t in xrange(int(input())): S = raw_input() try: re.compile(S) print True except: print False
# Enter your code here. Read input from STDIN. Print output to STDOUT import re for _ in range(int(input())): ans = True try: reg = re.compile(input()) except re.error: ans = False print(ans)
# Enter your code here. Read input from STDIN. Print output to STDOUT import re for _ in xrange(input()): try: print bool(re.compile(raw_input())) except: print 'False'
import re T = int(input()) for _ in range(T): try: re.compile(input()) print(True) except Exception: print(False)
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