Range step type failure

[X9Z3]

In previous versions the Python range function was able to evaluate range steps with both int and float types. In the current WASM I get the following error:

Error:PythonError: Traceback (most recent call last):
File "/lib/python312.zip/_pyodide/_base.py", line 597, in eval_code_async
await CodeRunner(
File "/lib/python312.zip/_pyodide/_base.py", line 411, in run_async
coroutine = eval(self.code, globals, locals)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "", line 7, in
TypeError: 'float' object cannot be interpreted as an integer

when running the following code:

`Web VPython 3.2 WASM

a = 1
b = 10
step = 0.9

for x in range(a, b, step):
print(x)`

The code works in the new RapydScript 3.2 testing version.

[sspickle]

WASM is using CPython (currently python 3.12) and this is not supported in CPython.

[X9Z3]

I recalled a built-in glowscript function, arange(), which I tested and works well enough. Funnily, it only takes the addition of the letter a on the word range:

`Web VPython 3.2 WASM

a = 1
b = 10
step = 0.9

for x in arange(a, b, step):
print(x)`

This works as a substitute. However, with some values for step (like 0.9 here, especially 0.1), some noticeable floating point error accrues on a few of the output values. This behavior is different and there is no floating point error in the RapydScript 3.2 alpha version. I understand that this is traditional Python behaviour though, and this can be prevented with some rounding but I figured I would mention it. I will leave the closing decision to you. Thanks!

[sspickle]

Oh, interesting. Can you provide an explicit example with floating point issues?

I'll point out that you can import numpy and use the numpy arange array constructor as well.

[X9Z3]

Code:

`Web VPython 3.2 WASM

a = 1
b = 5
step = 0.1

for x in arange(a, b, step):
print(x)`

Output: