IronLanguages / IronLanguages/ironpython3

dict should be insertion-order preserving

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What's New In Python 3.7
Dominant language
C#
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Avg merge
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Merged PRs (30d)
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Description

The insertion-order preserving dicts were implemented in CPython 3.6 but only became part of the language spec in 3.7.

Note that some tests in 3.6 (e.g. test_ordered_dict) are checking for this behaviour.

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 locating IronPython's dict implementation and compare its behavior with the Python 3.7 insertion-order requirement. Use the referenced test_ordered_dict tests as the initial behavioral check; done means dict preserves insertion order consistently with the language specification.

Written by the indexing model from the issue text.

Assessment

Tech stack
csharp, python
Domain
backend
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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