IronLanguages / IronLanguages/ironpython3

Equality between bytes/bytearray and Array[Byte]/List[Byte] no longer works

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.NET interop
Dominant language
C#
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Merged PRs (30d)
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Description

https://github.com/IronLanguages/ironpython3/pull/567 broke the following interop scenarios:

b = bytes(range(5))
System.Array[System.Byte](b) == b
System.Collections.Generic.List[System.Byte](b) == b
System.Array[System.Byte](b) == bytearray(b)
System.Collections.Generic.List[System.Byte](b) == bytearray(b)

While during initial development this is probably good (to help discover bugs) it might be worth enabling this scenario in the future.

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 reviewing pull request #567 and the equality behavior involved in IronPython's .NET interop. Reproduce the four examples from the issue, then identify the relevant implementation and tests. Done means Array[Byte] and List[Byte] comparisons work with both bytes and bytearray as shown.

Written by the indexing model from the issue text.

Assessment

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

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