microsoft/pyright 1.1.351

Published 1.1.351

on GitHub

Bug Fixes:

• Fixed bug that results in a false positive "no overload implementation" error if an overloaded function is passed through a decorator that uses a ParamSpec.
• Fixed a recent regression that results in a false positive error when an Enum subclass overrides __new__ or __init__ and then a subclass of that class assigns tuple values when defining enum members
• Fixed a bug that results in a false positive error when a method defined within a named tuple is overridden by a subclass
• Fixed a bug that results in a false positive error when a enum.nonmember value is assigned to a class-scoped variable with a type annotation in an Enum class.
• Fixed a bug in the type narrowing logic for class pattern matching that resulted in incorrect narrowing in the negative (fall-through) case.
• Added missing check for inappropriate use of an unpacked TypeVarTuple within a TypeAliasType type parameter list.
• Fixed a false positive reportUnknownArgumentType error when assigning an empty list or dict expression to an index expression subscripted with a slice.
• Fixed bug that results in a false positive error when assigning a tuple value that includes an unpacked TypeVarTuple to another tuple that also includes an unpacked TypeVarTuple.
• Fixed bug that results in a false positive error when calling update on a TypedDict with zero defined entries.
• Fixed a bug that results in a false positive with the reportUnnecessaryCast check if the second argument is a special form.
• Fixed a bug that led to incorrect type evaluation for a call that targets a generic function that uses a default argument for one of the generic parameters.

Behavior Changes:

• Change the heuristic for determining whether a metaclass supports __or__. In the case where the metaclass derives from Any or Unknown, pyright now assumes that it doesn't override __or__.
• Changed behavior of CLI's --watch mode. Previously, it reported diagnostic deltas when it detected a change, but it is more useful if it reports all remaining diagnostics even for files that it didn't reanalyze due to a file change.

Enhancements:

• Updated typeshed stubs to the latest version.
• Added provisional support for draft PEP 742 (TypeIs).
• Added check for the use of an implicit position-only parameter (one that starts with a double underscore) that is located after a non-position-only parameter.