Python Loop Visualizer

For understanding for loops and range().

for i in range (

Start

Stop

Step

) :

print(i)

Python range() reminder:

range(start, stop) → uses the default step of 1. The step is optional.
range(start, stop, step) → lets you choose a custom step (positive or negative, but not 0).
In real Python, step = 0 raises: ValueError: range() arg 3 must not be zero.

Step cannot be 0. In Python this would raise ValueError: range() arg 3 must not be zero. The step has been reset to 1. You may also use values like 2 or input -1 directly.

Output Console

Note: Notice how it starts at 0, jumps by 1, and stops before it reaches 10.