pyright only reports an error when you instantiate an abstract class that has unimplemented abstract methods. but a class that explicitly extends ABC (or uses ABCMeta) with no abstract methods can also be instantiated, and pyright has no issue with that:

from abc import ABC

class Foo(ABC):
    """abstract class with no abstract methods"""

foo = Foo()  # no error

but the author of the class likely intended this class not to be used directly, and instead subtyped. so if a class extends ABC but defines no abstract methods, instantiating it is likely unintentional.

the reportEmptyAbstractUsage rule flags such instantiations. see the docs for more info.

implemented by @KotlinIsland in DetachHead#1748 (some fixes by @detachhead in DetachHead#1766)

Full Changelog: https://github.com/DetachHead/basedpyright/compare/v1.38.4...v1.39.0

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This PR has been generated by Mend Renovate.

This PR contains the following updates: | Package | Change | [Age](https://docs.renovatebot.com/merge-confidence/) | [Confidence](https://docs.renovatebot.com/merge-confidence/) | |---|---|---|---| | [basedpyright](https://github.com/detachhead/basedpyright) | `~=1.38.2` → `~=1.39.3` | ![age](https://developer.mend.io/api/mc/badges/age/pypi/basedpyright/1.39.3?slim=true) | ![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/basedpyright/1.38.4/1.39.3?slim=true) | --- ### Release Notes <details> <summary>detachhead/basedpyright (basedpyright)</summary> ### [`v1.39.3`](https://github.com/DetachHead/basedpyright/releases/tag/v1.39.3): (pyright 1.1.409) [Compare Source](https://github.com/detachhead/basedpyright/compare/v1.39.2...v1.39.3) #### What's Changed - fix docs site not being deployed, which was caused by some changes I made to improve the security of our CI by [@DetachHead](https://github.com/DetachHead) in [DetachHead#1782](https://github.com/DetachHead/basedpyright/pull/1782) **Full Changelog**: <https://github.com/DetachHead/basedpyright/compare/v1.39.2...v1.39.3> ### [`v1.39.2`](https://github.com/DetachHead/basedpyright/releases/tag/v1.39.2): (pyright 1.1.409) [Compare Source](https://github.com/detachhead/basedpyright/compare/v1.39.1...v1.39.2) #### What's Changed - fix basedpyright being broken in the playground caused by browser-basedpyright being published with nothing in it by [@DetachHead](https://github.com/DetachHead) in [DetachHead#1778](https://github.com/DetachHead/basedpyright/pull/1778) **Full Changelog**: <https://github.com/DetachHead/basedpyright/compare/v1.39.1...v1.39.2> ### [`v1.39.1`](https://github.com/DetachHead/basedpyright/releases/tag/v1.39.1): (pyright 1.1.409) [Compare Source](https://github.com/detachhead/basedpyright/compare/v1.39.0...v1.39.1) #### What's Changed - Chinese (Simplified) localization update (2026.04) by [@NCBM](https://github.com/NCBM) in [DetachHead#1767](https://github.com/DetachHead/basedpyright/pull/1767) - Merge pyright 1.1.409 by [@DetachHead](https://github.com/DetachHead) in [DetachHead#1777](https://github.com/DetachHead/basedpyright/pull/1777) **Full Changelog**: <https://github.com/DetachHead/basedpyright/compare/v1.39.0...v1.39.1> ### [`v1.39.0`](https://github.com/DetachHead/basedpyright/releases/tag/v1.39.0): (pyright 1.1.408) [Compare Source](https://github.com/detachhead/basedpyright/compare/v1.38.4...v1.39.0) #### What's Changed ##### new diagnostic rule - `reportEmptyAbstractUsage` pyright only reports an error when you instantiate an abstract class that has unimplemented abstract methods. but a class that explicitly extends `ABC` (or uses `ABCMeta`) with no abstract methods can also be instantiated, and pyright has no issue with that: ```py from abc import ABC class Foo(ABC): """abstract class with no abstract methods""" foo = Foo() # no error ``` but the author of the class likely intended this class not to be used directly, and instead subtyped. so if a class extends `ABC` but defines no abstract methods, instantiating it is likely unintentional. the `reportEmptyAbstractUsage` rule flags such instantiations. see [the docs](https://docs.basedpyright.com/v1.39.0/benefits-over-pyright/new-diagnostic-rules/#reportemptyabstractusage) for more info. implemented by [@KotlinIsland](https://github.com/KotlinIsland) in [DetachHead#1748](https://github.com/DetachHead/basedpyright/pull/1748) (some fixes by [@detachhead](https://github.com/detachhead) in [DetachHead#1766](https://github.com/DetachHead/basedpyright/pull/1766)) **Full Changelog**: <https://github.com/DetachHead/basedpyright/compare/v1.38.4...v1.39.0> </details> --- ### Configuration 📅 **Schedule**: (UTC) - Branch creation - At any time (no schedule defined) - Automerge - At any time (no schedule defined) 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this PR and you won't be reminded about this update again. --- - [ ] If you want to rebase/retry this PR, check this box --- This PR has been generated by [Mend Renovate](https://github.com/renovatebot/renovate).

Renovate bot added 1 commit

2026-04-01 08:31:56 -04:00

Update dependency basedpyright to ~=1.39.0

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