'''
for i in '01234':
    print(i)


the_iteratable = '01234'
the_iterator = iter(the_iteratable)
while True:
    try:
        i = next(the_iterator)
    except StopIteration:
        break
    print(i)
'''
# range(2, 10, 2)
def my_range(start, stop, step):
    current = start
    while current < stop:
        yield current
        current += step

'''
gen_obj = iter(my_range(2, 10, 2))
while True:
    try:
        print(next(gen_obj))
    except StopIteration:
        break
'''
'''
for i in my_range(2, 10, 2):
    print(i)
'''
















al@jfish python % python3
Python 3.13.3 (main, Apr  8 2025, 13:54:08) [Clang 16.0.0 (clang-1600.0.26.6)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> for i in range(5):
...     print(i)
...
0
1
2
3
4
>>> range(5)
range(0, 5)
>>> type(range(5))
<class 'range'>
>>> r1 = range(5)
>>> r2 = range(0, 10, 2)
>>> next(r1)
Traceback (most recent call last):
  File "<python-input-5>", line 1, in <module>
    next(r1)
    ~~~~^^^^
TypeError: 'range' object is not an iterator
>>> r1 = iter(r1)
>>> r2 = iter(r2)
>>>
>>>
>>>
>>> next(r1)
0
>>> next(r1)
1
>>> next(r1)
2
>>> next(r1)
3
>>> next(r1)
4
>>> next(r1)
Traceback (most recent call last):
  File "<python-input-16>", line 1, in <module>
    next(r1)
    ~~~~^^^^
StopIteration
>>> range_obj = range(0, 10, 2)
>>> iterator1 = iter(range_obj)
>>> iterator2 = iter(range_obj)
>>> next(iterator1)
0
>>> next(iterator1)
2
>>> next(iterator1)
4
>>> next(iterator2)
0
>>> next(iterator2)
2
>>> next(iterator2)
4
>>> # An iterable obj (like a range obj, string, list, dict.keys(), set obj) is passed to iter() whic\
h returns an iterator obj.
>>> i3 = iter(iterator1)
>>> i3 == iterator1)
  File "<python-input-28>", line 1
    i3 == iterator1)
                   ^
SyntaxError: unmatched ')'
>>> i3 == iterator1
True
>>> next(i3)
6
>>> next(iterator2)
6
>>> next(iterator2)
8
>>> next(iterator2)
Traceback (most recent call last):
  File "<python-input-33>", line 1, in <module>
    next(iterator2)
    ~~~~^^^^^^^^^^^
StopIteration
>>> next(iterator2)
Traceback (most recent call last):
  File "<python-input-34>", line 1, in <module>
    next(iterator2)
    ~~~~^^^^^^^^^^^
StopIteration
>>> next(iterator2)
Traceback (most recent call last):
  File "<python-input-35>", line 1, in <module>
    next(iterator2)
    ~~~~^^^^^^^^^^^
StopIteration
>>>
>>>
>>>