Fix attribute type resolution with multiple inheritance#18415
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ilevkivskyi merged 5 commits intopython:masterfrom Jan 11, 2025
Merged
Fix attribute type resolution with multiple inheritance#18415ilevkivskyi merged 5 commits intopython:masterfrom
ilevkivskyi merged 5 commits intopython:masterfrom
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…llowing bases needn't be compatible
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hauntsaninja
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Nice, will leave for Ivan but had small comment
| pass | ||
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| class D(D0,D1,C): | ||
| pass |
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Should we expect an error for something like:
class D3(D0,D1,C):
class M(A.M):
pass
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We certainly should expect an error there as such an override violates LSP. But overrides are checked elsewhere, I'm only modifying inherited attributes compatibility checks in this PR.
Co-authored-by: Shantanu <12621235+hauntsaninja@users.noreply.github.com>
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Diff from mypy_primer, showing the effect of this PR on open source code: xarray (https://github.com/pydata/xarray)
+ xarray/core/groupby.py:1610: error: Unused "type: ignore" comment [unused-ignore]
+ xarray/core/groupby.py:1778: error: Unused "type: ignore" comment [unused-ignore]
+ xarray/core/resample.py:236: error: Unused "type: ignore" comment [unused-ignore]
+ xarray/core/resample.py:379: error: Unused "type: ignore" comment [unused-ignore]
ibis (https://github.com/ibis-project/ibis)
- ibis/common/collections.py:280: error: Definition of "get" in base class "Mapping" is incompatible with definition in base class "Mapping" [misc]
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ilevkivskyi
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Jan 11, 2025
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Fixes #18268. Fixes #9319. Fixes #14279. Fixes #9031.
Supersedes #18270 as requested by @ilevkivskyi.
This PR introduces two changes:
map_type_from_supertypewhen checking generic attributes