# Python – Test if Kth character is digit in String

Given a String, check if Kth index is a digit.

Input : test_str = ‘geeks9geeks’, K = 5
Output : True
Explanation : 5th idx element is 9, a digit, hence True.

Input : test_str = ‘geeks9geeks’, K = 4
Output : False
Explanation : 4th idx element is s, not a digit, hence False.

Method #1 : Using in operator

In this, we create a string of numerics and then use in operator to check if Kth digit lies in that numeric string.

## Python3

 `# Python3 code to demonstrate working of  ` `# Test if Kth charater is digit in String ` `# Using in operator ` ` `  `# initializing string ` `test_str ``=` `'geeks4geeks'` ` `  `# printing original String ` `print``(``"The original string is : "` `+` `str``(test_str)) ` ` `  `# initializing K ` `K ``=` `5` ` `  `# checking if Kth digit is string  ` `# getting numeric str ` `num_str ``=` `"0123456789"` `res ``=` `test_str[K] ``in` `num_str ` ` `  `# printing result  ` `print``(``"Is Kth element String : "` `+` `str``(res))  `

Output

```The original string is : geeks4geeks
Is Kth element String : True
```

Method #2 : Using isdigit()

In this, we use inbuilt Py. function to solve this problem, and check if Kth element is digit.

## Python3

 `# Python3 code to demonstrate working of  ` `# Test if Kth character is digit in String ` `# Using isdigit() ` ` `  `# initializing string ` `test_str ``=` `'geeks4geeks'` ` `  `# printing original String ` `print``(``"The original string is : "` `+` `str``(test_str)) ` ` `  `# initializing K ` `K ``=` `5` ` `  `# isdigit checks for digit ` `res ``=` `test_str[K].isdigit() ` ` `  `# printing result  ` `print``(``"Is Kth element String : "` `+` `str``(res))  `

Output

```The original string is : geeks4geeks
Is Kth element String : True
```

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