Combine multiple classes
Nobody has claimed this yet.
Assessment
- Difficulty
- 5/5
- Estimated time
- Over a week
- Newbie friendliness
- 35/100
Research direction
Start by reviewing attrs' existing class-composition and inheritance APIs, with particular attention to the slots requirement described in the issue. Determine whether the requested flattened attribute access is supported or needs a new design; done would be a documented existing approach or a clearly scoped feature proposal.
Written by the indexing model from the issue text.
Description
Is it possible to combine two (or more) class declarations into one?
This should be similar to multiple inheritance I guess, but should work with slots.
For example:
@define
class Point2d:
x : int
y : int
@define
class Line:
start : Point2d
end : Point2d
@define
class StrokeProperties:
size : float
color : Color
DrawnPoint = some_magic(Point2d, StrokeProperties)
DrawnLine = some_magic(Line, StrokeProperties)
print(DrawnPoint.x, DrawnPoint.size)
One could argue, that composition should be used instead, but I think it could be nicer to be able to access attributes without nesting.
Is there something like this in attrs, or how it could be done using existing api?
- Dominant language
- Python
- Stars
- 5.8k
- Forks
- 480
- Avg merge
- 2h 15m
- Merged PRs (30d)
- 2
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.
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