Python range - Create the arithmetic progression in Python

In Python, range makes an arithmetic sequence similar to a list.

a = range(4)

for i in a:
    print(i)

# 0
# 1
# 2
# 3

You can get the each item in for loop. Let's check another example.

a = range(7)

for i in a:
    print(i)

# 0
# 1
# 2
# 3
# 4
# 5
# 6

Python range is not a list

Python range looks like a list but, to be exact, is not a list.

a = range(7)

print(a)
# range(0, 7)

print(type(a))
# <class 'range'>

type function returns the type of object. You can see the type of range is range, not list. But range object can be iterated in loop like list.