range

class range(start, stop, step=1)

Returns a sequence type (built-in).

start	The first value, zero if not entered
stop	The last value (not included)
step	The size of the increment

REMARKS

* No prefix required - Core
* Rather than being a function, range is actually an immutable sequence type, as documented in Ranges and Sequence Types - list, tuple, range.
* For the Official documentation refer to python.org

range_object = range(5) 
print(range_object)    #= range(0,5) 

range_object = range(5, 10) 
print(range_object)    #= range(5, 10) 

for my_number in range_object: 
    print(my_number)   #= 5, 6, 7, 8, 9