Which function is used to convert a value to an integer in Python?

The function used to convert a value to an integer in Python is the int() function. When you pass a value to int(), it attempts to convert that value into an integer data type. This is particularly useful when working with numerical data that may initially be in another format, such as a floating-point number or a string representation of a number. For example, int(3.7) will yield 3, and int("10") will result in the integer 10.

In Python, there are other functions that serve different purposes: the float() function converts values to floating-point numbers, the str() function converts values to strings, and num() is not a built-in function in Python for type conversion. Thus, the int() function is the most appropriate choice for converting values specifically to integers.