python / python/cpython

Align the grammar of the `Decimal` string constructor with `float`'s

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Dominant language
Python
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Description

The grammar does not cover the case with underscores between the digits of a Decimal. The PEP-515 introduced underscores for integers, floating-point numbers and decimals. The documentation for integers and floating-point numbers are updated to cover underscores, but the grammar documentation for the Decimal does not.

Linked PRs
  • gh-128315
  • gh-128323
  • gh-132875

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First steps

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  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 with the grammar documentation for the Decimal string constructor and compare its underscore coverage with the documented float grammar and PEP 515. Done means the Decimal grammar documents underscores between digits consistently with the other numeric forms; linked PRs indicate this work is already underway.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
documentation
Issue type
Documentation
Difficulty
1/5
Estimated time
Under an hour
Activity status
Stale
Clarity
Clearly specified
Newbie friendliness
20/100

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