Can you describe the main features of the range function in Python?

The range function in Python is used to generate a sequence of numbers and is often used in for loops. Main features:

• Returns an iterator object that generates numbers within a specified range.
• Can accept from one to three arguments:
  • range(stop) — numbers from 0 to stop - 1.
  • range(start, stop) — numbers from start to stop - 1.
  • range(start, stop, step) — numbers from start to stop - 1 with a step of step.
• Supports positive and negative steps.
• Lazy — numbers are generated as needed, saving memory.

Example:

for i in range(2, 10, 2):
    print(i)
# Output: 2 4 6 8

range is often used for iteration with indices or creating lists of numbers.