pymc-devs / pymc-devs/pytensor

float with 0 decimal converted to float32 instead of float64

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#1,913 5 comments 0 reactions 0 assignees View on GitHub

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bug NumPy compatibility
Dominant language
Python
Stars
644
Forks
208
Avg merge
2d 14h
Merged PRs (30d)
16

Description

Description
import pytensor.tensor as pt

pt.as_tensor(8.9).dtype, pt.as_tensor(9.0).dtype, pt.as_tensor(9.1).dtype
# ('float64', 'float32', 'float64')

Completely puzzling

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

Start by reproducing the three pt.as_tensor examples from the issue and trace the dtype inference path used by as_tensor. Done means the inconsistent dtype result for 8.9, 9.0, and 9.1 is resolved and covered by a regression test.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
backend
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
38/100

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