String Validators in Python – HackerRank Solution

String Validators in Python - HackerRank Solution
String Validators in Python – HackerRank Solution

Python has built-in string validation methods for basic data. It can check if a string is composed of alphabetical characters, alphanumeric characters, digits, etc.
str.isalnum()
This method checks if all the characters of a string are alphanumeric (a-z, A-Z and 0-9).

>>> print 'ab123'.isalnum()
True
>>> print 'ab123#'.isalnum()
False

str.isalpha()
This method checks if all the characters of a string are alphabetical (a-z and A-Z).

>>> print 'abcD'.isalpha()
True
>>> print 'abcd1'.isalpha()
False

str.isdigit()
This method checks if all the characters of a string are digits (0-9).

>>> print '1234'.isdigit()
True
>>> print '123edsd'.isdigit()
False

str.islower()
This method checks if all the characters of a string are lowercase characters (a-z).

>>> print 'abcd123#'.islower()
True
>>> print 'Abcd123#'.islower()
False

str.isupper()
This method checks if all the characters of a string are uppercase characters (A-Z).

>>> print 'ABCD123#'.isupper()
True
>>> print 'Abcd123#'.isupper()
False

Task :

You are given a string S.
Your task is to find out if the string S contains: alphanumeric characters, alphabetical characters, digits, lowercase and uppercase characters.


Input Format :

A single line containing a string S.

Constraints :

  • 0 <= len(s) <= 1000

Output Format :

In the first line, print True if S has any alphanumeric characters. Otherwise, print False.
In the second line, print True if S has any alphabetical characters. Otherwise, print False.
In the third line, print True if S has any digits. Otherwise, print False.
In the fourth line, print True if S has any lowercase characters. Otherwise, print False.
In the fifth line, print True if S has any uppercase characters. Otherwise, print False.


Sample Input :

qA2

Sample Output :

True
True
True
True
True

String Validators in Python – HackerRank Solution

def fun1(s):
    for i in range(len(s)):
        if(s[i].isalnum()):
            return True;
            break;
    return False;
def fun2(s):
    for i in range(len(s)):
        if(s[i].isalpha()):
            return True;
            break;
    return False;
def fun3(s):
    for i in range(len(s)):
        if(s[i].isdigit()):
            return True;
            break;
    return False;
def fun4(s):
    for i in range(len(s)):
        if(s[i].islower()):
            return True;
            break;
    return False;
def fun5(s):
    for i in range(len(s)):
        if(s[i].isupper()):
            return True;
            break;
    return False;
# String Validators in Python - HackerRank Solution END
if __name__ == '__main__':
    s = raw_input()
    # String Validators in Python - HackerRank Solution START
    flagalphanum = fun1(s)
    alphabetical = fun2(s)
    digits = fun3(s)
    lowercase = fun4(s)
    uppercase = fun5(s)
    print(flagalphanum)
    print(alphabetical)
    print(digits)
    print(lowercase)
    print(uppercase)

Disclaimer: The above Problem (String Validators in Python ) is generated by Hackerrank but the Solution is Provided by Chase2Learn. This tutorial is only for Educational and Learning purposes. Authority if any of the queries regarding this post or website fill the following contact form thank you.

Leave a Comment