Oct 27, 2024 · The simplest way to convert a string to an integer in Python is by using the int () function. This function attempts to parse the entire string as a base-10 integer. Explanation: The int () function takes the string s and converts it into an integer. Note: If the string contains non-numeric characters or is empty, int () will raise a ValueError.

There are several ways to represent integers in Python. In this quick and practical tutorial, you'll learn how you can store integers using int and str as well as how you can convert a Python string to an int and vice versa.

Jan 30, 2025 · Learn how to convert a string to an integer in Python using methods like `int()` and `float()`. Explore simple techniques for handling type conversion in your programs!

Dec 19, 2008 · As a general rule, if you have an object in Python, and want to convert to that type of object, call type(my_object) on it. The result can usually be called as a function to do the conversion. For instance type(100) results in int, so you can call int(my_object) to try convert my_object to an integer.

Jul 10, 2020 · In Python, a string can be converted into an integer using the following methods : Method 1: Using built-in int () function: If your string contains a decimal integer and you wish to convert it into an int, in that case, pass your string to int () function and it will convert your string into an equivalent decimal integer.

def convertStr(s): """Convert string to either int or float.""" try: ret = int(s) except ValueError: #Try float. ret = float(s) return ret That way if the int conversion doesn't work, you'll get a float returned.

Nov 29, 2021 · To convert, or cast, a string to an integer in Python, you use the int() built-in function. The function takes in as a parameter the initial string you want to convert, and returns the integer equivalent of the value you passed.

Summary: in this tutorial, you’ll learn how to use Python int() to convert a number or a string to an integer. The int() accepts a string or a number and converts it to an integer. Here’s the int() constructor: Note that int() is a constructor of the built-in int class. It is not a function. When you call the int(), you create a new integer object.

How to Convert String to Int using int() Function. Let us start with the easiest and the most straightforward way to convert a string to integer using Python: the int() function. Why do we recommend this first? Because this function comes built in. Use this syntax as a guide: num_str = "123" num_int = int(num_str) print(num_int) # Output: 123

Nov 24, 2024 · If your string represents a whole number (i.e., 12), use the int() function to convert a string into an integer. If your string represents a decimal number (i.e., 12.5), use the float() function to convert a string into a float. You can find examples below: