IronLanguages / IronLanguages/ironpython3
mangled class attributes not accessible in f-strings
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- Dominant language
- C#
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Description
class test:
def __init__(self, x):
self.__x = x
assert f"{self.__x}" == f"{x}"
test(0)
results in an AttributeError:
AttributeError: 'test' object has no attribute '__x'
This came up in testresult.py in Python 3.6.
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First steps
- Read the whole issue, then the project's contributing guide.
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- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by running the provided class and f-string reproduction, then inspect the handling related to testresult.py in the IronPython 3 implementation. Trace how the mangled self.__x attribute is compiled or resolved inside an f-string. Done means the example constructs successfully and both formatted values are equal without AttributeError.
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
- Needs clarification
- Newbie friendliness
- 35/100