pymc-devs / pymc-devs/pytensor

Use numpy C-API for nonzero

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C-backend
Dominant language
Python
Stars
644
Forks
208
Avg merge
2d 14h
Merged PRs (30d)
16

Description

Description

https://numpy.org/devdocs/reference/c-api/array.html#c.PyArray_Nonzero

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Read the linked NumPy C-API documentation first, then locate the current nonzero implementation in PyTensor. Confirm the implementation uses PyArray_Nonzero and that existing nonzero behavior remains intact.

Written by the indexing model from the issue text.

Assessment

Tech stack
c, numpy, python
Domain
backend
Issue type
Refactor
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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