Pyright

Enhancement: Added support for imaginary number literals (e.g. "3.4j").

Enhancement: Added new configuration setting reportImplicitStringConcatenation that generates errors or warnings when implicit string concatenation (multiple string literals in a row) are used.

Enhancement: Added type constraint support for conditional expressions that include assignment (walrus) operators.

Bug Fix: Fixed a bug in parser and a bug in completion provider that impacted completion suggestions within decorators.

Bug Fix: Fixed bug in TypeVar matching logic for case where a union includes multiple types, some of which are subclasses of the other.

Enhancement: The reportUnknownVariableType setting now also checks for unknown or partially-unknown types in return type declaration and return value expressions.

Enhancement: Added new setting reportUnknownArgumentType that emits an error or warning when an argument's expression type is unknown or partially unknown. This setting is enabled in strict mode.

Bug Fix: Changed type checker to enforce invariance of type arguments where appropriate. This includes union types.

Bug Fix: Fixed bug in bidirectional type inference in case where provided object was subclassed from the expected type's class.

Bug Fix: Fixed bug in speculative evaluation mode where cached types from older speculative sessions were still being used in newer speculative sessions, giving the wrong answer.

Bug Fix: Fixed logic for detecting abstract methods that are not overridden. The previous logic didn't work when a mix-in class provided the implementation.

Enhancement: Updated to the latest version of typeshed type stubs.

Enhancement: Added support for PEP 562's __getattr__ function.

Bug Fix: Fixed bug in handling of Protocol classes with generic type arguments.

Bug Fix: Fixed signature provider so it works with decorator calls.

Bug Fix: Fixed bug in type checking logic for homogenous tuples of arbitrary length.

Bug Fix: Fixed bug that resulted in forward references to type aliases being reported as unbound.

Bug Fix: Fixed recent regression in completion provider that caused a crash.

Bug Fix: Fixed bug where function was not identified as a generator if its yield statements were unreachable.

Bug Fix: Fixed bug in handling of generic type parameters within a class declaration.

Bug Fix: Added support for None as a type parameter for Literal.

Enhancement: Added error for classes that attempt to derive from Generic more than once.

Enhancement: Added support for literal string value type completion suggestions for call arguments and assignment expressions.

Enhancement: Added synthesized overloaded "get" methods for TypedDict classes to support proper return types for each key value.

Enhancement: Added completion support for string literals used for TypedDict index expressions.

Enhancement: Added reportSelfClsParameterName setting and defaulted it to warning. This controls whether pyright emits an error or warning when a "self" or "cls" parameter is missing or is not named consistently with PEP 8.

Bug FIx: Fixed bug where callable class members were not being bound to instance as part of member access operator. As part of this fix, removed the FunctionTypeFlags.InstanceMethod flag, which is now implicit if SStaticMethod, ClassMethod or ConstructorMethod are not set.

Bug Fix: Fixed bug in f-string parsing that resulted in incorrect error reporting when expressions within f-string contained string literals with curly braces or with nested string literals (including nested f-strings).