What is the result of the expression int(“42”) in Python?

In Python, the int() function converts a valid string representation of a number to an integer. The expression int("42") converts the string “42” into the integer 42.

number = int("42")  # number is now 42

This conversion is commonly used when processing user input, which is often received as a string, even if it represents a number. Using int() ensures that you can perform arithmetic operations on the input after conversion.

Attempting to convert a string that does not represent a valid integer (e.g., “forty-two”) will result in a ValueError. Therefore, it’s important to validate or handle such cases to avoid runtime errors.