IronLanguages / IronLanguages/ironpython3
`round` fails when encountering a `Single`
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.NET interop
- Dominant language
- C#
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Description
>>> round(1.23)
1
>>> round(System.Double(1.23))
1
>>> round(System.Numerics.BigInteger(123))
123
>>> round(System.Single(1.23))
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: type Single doesn't define __round__ method
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
Start by reproducing the shown round(System.Single(1.23)) example and trace how IronPython handles round for .NET numeric types. The issue is resolved when the Single example behaves like the other displayed numeric examples without raising TypeError.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- csharp, python
- Domain
- devtools
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 50/100