IronLanguages / IronLanguages/ironpython3
Equality operator fails if lookup for __eq__ in class is unsuccessful
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CPython compatibility
- Dominant language
- C#
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Description
For example:
def missing(self):
raise AttributeError("missing")
class E:
__eq__ = property(missing)
assert not (E() == E())
raises AttributeError: missing rather than pass the assertion.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Reproduce the provided Python example first, then trace the equality operator and eq lookup handling in IronPython3. The work is done when the example completes without AttributeError and the assertion passes, with a regression test covering this behavior.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- csharp, python
- Domain
- compilers
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 42/100