linspace division by zero error #8670
Description
What happened:
linspace gives a division by zero error, when NumPy returns an empty array on the same input.
What you expected to happen:
Behaviour the same as NumPy.
Minimal Complete Verifiable Example:
>>> import numpy as np
>>> np.linspace(0, 0, 0, endpoint=False)
array([], dtype=float64)
>>> import dask.array as da
>>> da.linspace(0, 0, 0, endpoint=False)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Users/tom/projects-workspace/dask/dask/array/creation.py", line 303, in linspace
step = float(range_) / div
ZeroDivisionError: float division by zeroAnything else we need to know?:
This fix is needed for the Array API (dask/community#109).
Environment:
- Dask version: main
- Python version: 3.8
- Operating System: Mac
- Install method (conda, pip, source): source