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Return fixed length tuple from array.dims()?

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
35/100
Issue type
Feature
Clarity
Mostly clear
Activity status
Stale
Tech stack
python
Domain
api

Research direction

Start at the Python binding entry point for array.dims() and inspect how it currently exposes ArrayFire dimensions. Use the examples in the issue to confirm the intended four-element behavior and its effect on existing callers. Done means the API consistently returns the requested fixed-length tuple and its behavior is covered by the relevant tests.

Written by the indexing model from the issue text.

Description

Hi,

Could you consider changing array.dims() to return a fixed length tuple, like (3,4,1,1)? Currently it's necessary to check the length of the returned tuple before indexing it to get the size of a specific dimension.

>>> import arrayfire as af
>>> aa = af.randu(3,4,1)
>>> aa.dims()
(3, 4)
>>> bb = af.randu(3,4,2)
>>> bb.dims()
(3, 4, 2)
>>>

Something like this...

>>> def dims(arr):
>>>    return arr.dims() + ((1,)*(4-len(arr.dims())))

>>> dims(aa)
(3,4,1,1)
Dominant language
Python
Stars
422
Forks
63
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