In Python, range() is a built-in function that generates a sequence of numbers. It is commonly used in loops and to create iterable objects. The range() the function can be called with one, two, or three arguments, with the general syntax:

range(start, stop, step)

The start argument represents the starting value of the sequence (inclusive), the stop the argument represents the ending value of the sequence (exclusive), and the step the argument specifies the increment between consecutive numbers in the sequence. Here are a few examples to illustrate the usage of range():

Generate a sequence of numbers from 0 to 9 (exclusive):

for num in range(10):

print(num)

Output:

0 1 2 3 4 5 6 7 8 9

Generate a sequence of even numbers from 0 to 10 (exclusive):

for num in range(0, 10, 2):

print(num)

Output:

0 2 4 6 8

Generate a sequence of numbers in reverse order from 10 to 1 (exclusive):

for num in range(10, 0, -1):

print(num)

Output:

10 9 8 7 6 5 4 3 2 1

Note that the range() function itself returns a range object that represents the sequence of numbers. If you need to work with the actual list of numbers, you can convert the range object to a list using the list() function.

Keep in mind that when specifying the arguments for range(), the start value is optional (defaulting to 0 if not provided), the step value is optional (defaulting to 1 if not provided), and the stop value is required.

Python

Exploring the range() Function in Python for Number Sequences