String validators in python - HackerRank solution

Solution for hackerRank problem String validators in python

Problem :

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

Code :

s = str(input())

alnum = "False"

alpha = "False"

digit = "False"

lower = "False"

upper = "False"

for i in s:

    if(i.isalnum()):

        alnum = "True"

    if(i.isalpha()):

        alpha = "True"

    if(i.isdigit()):

        digit = "True"

    if(i.islower()):

        lower = "True"

    if(i.isupper()):

        upper = "True"

print(alnum)

print(alpha)

print(digit)

print(lower)

print(upper)