# String Validators in Python HackerRank Solution Hello Programmers, In this post, you will know how to solve the String Validators in Python HackerRank Solution. This problem is a part of the HackerRank Python Programming Series.

One more thing to add, don’t directly look for the solutions, first try to solve the problems of Hackerrank by yourself. If you find any difficulty after trying several times, then you can look for solutions.

## String Validators in Python HackerRank Solution

### 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
```

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.

`qA2`

```True
True
True
True
True```

### String Validators in Python HackerRank Solutions

```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 BrokenProgrammers. This tutorial is only for Educational and Learning purposes.