Mark interfaces as Protocols and add missing self argument#4144
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Mark interfaces as Protocols and add missing self argument#4144
self argument#4144Conversation
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jaraco
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Jan 24, 2024
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| class IResourceProvider(IMetadataProvider): | ||
| class IResourceProvider(IMetadataProvider, Protocol): |
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Today I learned about extending protocols. Nice work.
jaraco
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Jan 24, 2024
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| class IMetadataProvider: | ||
| def has_metadata(name): | ||
| class IMetadataProvider(Protocol): |
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I have no idea if these protocols are used anywhere (such as with Zope), but I suspect not. If this change ends up causing unexpected disruption, we may have to back it out. Thanks for making it a separate PR.
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Summary of changes
This was noticed in https://github.com/python/typeshed/pull/10058/files#diff-1acb87d31f86c216cde10127dbe27643bd9d83975a757d3fe75559c03fd9b934
This change allows users to use these Protocols in static-type-checking to ensure proper usage of any class implementing these Interfaces.
Doesn't close any open issue, but relates to/work towards #2345
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