How to Convert a String to Integer in Python

In Python, like most programming languages, strings and numbers are treated very differently.

Strings are a sequence of characters whereas integers are whole numbers (positive or negative).

While coding in Python, you might need to convert a string to an integer.

For example, when you accept user input in a program, the input is usually in the form of a string but you need to convert it to an integer.

In this post, we'll learn how to convert a string to an integer in Python.

Convert a String to an Integer

The most straightforward way to convert a string to an integer is to use the int() function.

This is a built-in function in Python that takes in your string and attempts to convert it to an integer for you.

It can technically take in any type of data, but for the purposes of this post, we'll only be using strings.

Let's start with our string:

PYTHON
string = "123"

Now we can pass in this string to the int() function, to get an integer back:

PYTHON
string = "123"

integer = int(string)

print(integer)

BASH
123

Conclusion

In this post, we learned how to convert a string to an integer in Python.

Simply use the int() function and pass in the string you'd like converted.

Thanks for reading and happy coding!

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