microsoft/pyright 1.1.386

Published 1.1.386

on GitHub

Bug Fixes:

• Fixed issue that results in non-deterministic false positive error, often relating to the "awaitable" check.
• Fixed bug that results in a false positive error when using a traditional generic type alias defined with a "naked" type variable surrounded by Annotated within a Python 3.12 type statement.
• Fixed a bug that leads to a false positive when using asssert_type with a **kwargs parameter that is annotated with an unpacked TypedDict.
• Fixed recent regression that results in a spurious type error when accessing an instance variable self.x if x has the type of a class-scoped type variable with a default value.
• Fixed a recent regression that results in false positive errors under certain circumstances that involve assignability checks for two callables that involve a *args: *tuple[] parameter.
• Fixed bug that results in a false positive when resolving a multi-part import target that involves a circular dependency.
• Fixed regression that results in a false positive error (and an error that is reported at a bogus location) when overriding a dataclass field with a converter.
• Fixed bug in constraint solver that resulted in behavior that differed depending on the order of methods in a protocol.
• Fixed a bug that results in a spurious error when specializing an old-style generic type alias whose type is defined as a new-style type alias that has multiple type parameters, only some of which are used in its type definition.
• Fixed bug that leads to incorrect type narrowing in the negative ("else") case when using isinstance with a filter type that is typed as type[X].
• Fixed bug that results in a false negative when the specialization of a ParamSpec results in a signature that has a duplicate parameter name where one parameter has a default value and the other does not.

Enhancements:

• Added a limit to the number of typed declarations that will be evaluated for a single symbol. This mitigates performance issues with code that redeclares a symbol hundreds or thousands of times.
• Updated support for "closed" TypedDict to match latest updates to PEP 728.
• Enhanced the type(y) == x type guard logic to support the case where y is declared as a type variable with an upper bound that overlaps with the type of x.
• Updated typeshed stubs to the latest version.
• Updated toml parser library to support toml 1.0.0 syntax.
• Removed the limitation that the "ignore" setting in a config file must be relative to the project root.