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

String Validators

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  • henriqueapm
     + 0 comments
    s = input()
anum = False
abetic = False
digit = False
lower = False
upper = False
for i in s:
    if i.isalnum():
        anum = True
    if i.isalpha():
        abetic = True
    if i.isdigit():
        digit = True
    if i.islower():
        lower = True
    if i.isupper():
        upper = True

print(anum)
print(abetic)
print(digit)
print(lower)
print(upper)

  • abtemiz
     + 0 comments
    s = input()
first=False
second=False
third=False
fourth=False
fifth=False

for i in s:
   first = i.isalnum() or first
   second =i.isalpha() or second
   third = i.isdigit() or third
   fourth = i.islower() or fourth
   fifth = i.isupper() or fifth

print(first)
print(second)
print(third)
print(fourth)
print(fifth)

  • saviao
     + 0 comments

    Yet another way

    def string_validation(string):
    checks = (str.isalnum, str.isalpha, str.isdigit, str.islower, str.isupper)
    for check in checks:
        yield any([check(char) for char in string])

if __name__ == '__main__':
    string = input()
    for validation in string_validation(string):
        print(validation)

  • abiodun0075
     + 1 comment
    s =input()
print(any([x.isalnum() for x in s]))
print(any([x.isalpha() for x in s]))
print(any([x.isdigit() for x in s]))
print(any([x.islower() for x in s]))
print(any([x.isupper() for x in s]))

  • mathewspious
     + 0 comments

    Solution using list comprehension.

    if __name__ == '__main__':
    s = input()
    print("True" if True in [True for x in s if x.isalnum()] else "False")
    print("True" if True in [True for x in s if x.isalpha()] else "False")
    print("True" if True in [True for x in s if x.isdigit()] else "False")
    print("True" if True in [True for x in s if x.islower()] else "False")
    print("True" if True in [True for x in s if x.isupper()] else "False")
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