Imagina part in python what casting is

How to Check If a String is an Integer in Python?

Summary: In this Python tutorial, we will learn different ways to check if a given string is actually an integer.

For example, “123” is of type string but the value is actually an integer.

There are many ways to test this in Python. Let's see each of them one by one.

Method 1: Using int ()

In this method, we try to attempt to cast the string into an integer using the inbuilt method.

If the string is not an integer then the Python will throw the otherwise not.

Method 2: Using isdigit ()

The method, when used on a string, returns true if all the characters in the string are digits and otherwise false.

The drawback of the method is that it can only testify the non-negative integers. It is so because it interprets ‘-‘ as a special character.

Method 3: Using isnumeric ()

The is another method similar to checks whether a string is a number.

The advantage of this method over is that it works both for negative and positive integers.

I hope now you can easily check for numbers in a python string. If you have any doubts or suggestions then comment below.