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The range() function is used to generate a sequence of numbers over time. At its most basic, it accepts an integer and returns a range object.
Syntax
range(start, stop, step)
Parameter Values
| Parameter | Description |
|---|---|
| start | Optional. An integer number specifying at which position to start. Default is 0 |
| stop | Required. An integer number specifying at which position to stop (not included). |
| step | Optional. An integer number specifying the incremental. Default is 1 |
Usage examples
Here are some examples
# empty range print(list(range(0))) # using range(stop) print(list(range(8))) # using range(start, stop) print(list(range(2, 8)))
You will see something like this
[] [0, 1, 2, 3, 4, 5, 6, 7] [2, 3, 4, 5, 6, 7]
generate even numbers
start = 2 stop = 10 step = 2 print(list(range(start, stop, step)))
You will see something like this
[2, 4, 6, 8]
negative example
start = 0 stop = -10 step = -2 print(list(range(start, stop, step)))
You will see something like this
[0, -2, -4, -6, -8]
