PYTHON

how to make your own range function in python

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def own_range(start=0, end=0, step=1):
	if step == 0:
		raise ValueError("own_range() arg 3 must be not zero")
	if start > end and step < 0:
		while start > end:
			yield start 
			start += step
	elif start > end or (start != 0 or end == 0) and start != 0 and end == 0:
		while end < start:
			yield end
			end += step
	elif start == 0 and end != 0 and end > 0 and step > 0 or (start != 0 or end == 0) and start != 0 and start < end and step > 0:
		while start < end:
			yield start
			start += step

making your own range function in python

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def range_by(starting_number, ending_number):
    #sequence = [starting_number]
    sequence = []
    while starting_number < ending_number:
        sequence.append(starting_number)
        starting_number += 1
        
    return sequence

print(range_by(-3,6))

making your own range function with step in python

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def range_with_step(start_num,end_num,step_num=1):
    sequence2 = [start_num]
    while start_num < end_num:
        start_num += step_num
        sequence2.append(start_num)
    return sequence2
print(range_with_step(0,6,3))

python range function examples

>>> list(range(10))
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
>>> list(range(1, 11))
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
>>> list(range(0, 30, 5))
[0, 5, 10, 15, 20, 25]
>>> list(range(0, 10, 3))
[0, 3, 6, 9]
>>> list(range(0, -10, -1))
[0, -1, -2, -3, -4, -5, -6, -7, -8, -9]
>>> list(range(0))
[]
>>> list(range(1, 0))
[]