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  1. Prepare
  2. Python
  3. Strings
  4. String Validators
  5. Discussions

String Validators

  • hongseongeun39
     + 1 comment

    I wonder why Test case3 results should be ALL TRUE isalnum() means "This method checks if all the characters of a string are alphanumeric (a-z, A-Z and 0-9).", so i think Test case3 results could be False True True True True. Any opinions?

    if __name__ == '__main__':
    s = str(input())
    for string in s:
        if string.isalnum():
            pass
        else:
            break
    print(string.isalnum())
    # isalpha check
    for string in s:
        if string.isalpha():
            print(string.isalpha())
            break
    else:
        print(string.isalpha())
    # isdigit check
    for string in s:
        if string.isdigit():
            print(string.isdigit())
            break
    else:
        print(string.isdigit())
    # islower check
    for string in s:
        if string.islower():
            print(string.islower())
            break
    else:
        print(string.islower())
    # isupper check
    for string in s:
        if string.isupper():
            print(string.isupper())
            break
    else:
        print(string.isupper())