Usage of nested protocol (member of protocol is also a protocol) Understanding the Usage of Nested Protocols in Swift In Swift a protocol can define a set of methods properties and other requirements that suit a particular ta 2 min read 22-10-2024 20
Type hinting a method accepting a type (possibly ABC) and returning instances of that type Understanding Type Hinting in Python Methods Accepting Types and Returning Instances Type hinting in Python has become an essential practice for developers aimi 2 min read 22-10-2024 20
mypy catches errors better with TypeVar than Union Understanding Type Var vs Union in Mypy Why Type Var Catches Errors More Effectively When working with type checking in Python using Mypy developers often encou 3 min read 22-10-2024 17
MyPy: Module "src.some..nested.folder.python_file" has no attribute "attribute_thats_definetely_there" [attr-defined] Understanding My Py Errors Attribute Not Found in Nested Modules If you re working with Python and leveraging static type checking using My Py you might encount 3 min read 21-10-2024 18
PyCharm gives me a type warning about my metaclass; mypy disagrees Understanding Type Warnings in Py Charm and My Py with Metaclasses In the world of Python programming type checking can sometimes lead to confusion especially w 2 min read 21-10-2024 23
Typecheck Errors while iterating through python request response: "len" has incompatible type "Optional[Any]"; expected "Sized" [arg-type] Understanding Typecheck Errors When Iterating Through Python Requests Responses When working with Pythons requests library one common task is to handle response 3 min read 21-10-2024 23
How to make mypy satisfied with my MutableMapping[str, int] whose __getitem__ may return None and __setitem__ must not accept None? How to Ensure Mypy Accepts Mutable Mapping with Specific Type Constraints In Python type hinting provides significant advantages especially when using static ty 3 min read 20-10-2024 18
Use runtime type checking (isinstance) along with type hints Using Runtime Type Checking with isinstance and Type Hints in Python In Python type hints are a powerful feature that allows developers to specify expected data 2 min read 20-10-2024 19
Using @singledispatchmethod on __eq__(): Signature of "__eq__" incompatible with supertype "object" Understanding and Using singledispatchmethod with eq in Python In Python the eq method is responsible for defining the behavior of the equality operator However 2 min read 20-10-2024 18
Optimizing complex types in the python function Optimizing Complex Types in Python Functions Optimizing complex data types in Python functions is crucial for enhancing performance and improving code readabili 2 min read 19-10-2024 19
Type alias for a union of two @runtime_checkable Protocols triggers mypy's "Cannot use parameterized generics in instance checks" Understanding Type Aliases for Union of runtime checkable Protocols in Python In the world of Python type checking especially when utilizing mypy developers can 2 min read 19-10-2024 19
How to statically enforce frozen data classes in Python? How to Statically Enforce Frozen Data Classes in Python In Python data classes are a convenient way to define classes that primarily store data without much boi 2 min read 19-10-2024 30
HowTo: Create type safe cross pydantic version compatible config mixins How to Create Type Safe Cross Pydantic Version Compatible Config Mixins When working with configurations in Python especially when using Pydantic it s essential 2 min read 16-10-2024 27
How can I implement multiple optional fields but with at least one of them mandatory in MyPy or Pydantic? Implementing Multiple Optional Fields with One Mandatory Field in My Py and Pydantic When designing data models its common to require multiple optional fields b 3 min read 15-10-2024 26
Type-correct implementation of a python decorator that drops the first argument to a function Type Safe Function Decorators Dropping the First Argument in Python Decorators are a powerful tool in Python that allow you to modify the behavior of functions 2 min read 04-10-2024 26
Is it possible in Python to type a function that uses the first elements of an arbitrary sized arguments list Working with Arbitrary Arguments Extracting First Elements in Python Lets explore a common scenario in Python you need a function that can handle a variable num 2 min read 04-10-2024 32
Cannot reproduce numpy.typing.NBitBase example with `numpy.typing.mypy_plugin` Numpy Type Hints Addressing the numpy typing N Bit Base Issue This article explores an issue faced while working with type hints in Num Py using the numpy typin 2 min read 03-10-2024 32
How to type hint an abstractmethod property and make mypy happy? Typing Abstract Methods with Properties Making Mypy Happy When working with abstract base classes ABCs in Python you often need to define abstract properties wh 2 min read 03-10-2024 28
Using mypy with pandas `to_dict` method Taming the Type Errors Using mypy with Pandas to dict Method Pandas to dict method offers powerful ways to convert Data Frames into dictionaries but navigating 2 min read 03-10-2024 31
Issue type hinting set of child objects in Python Type Hinting Child Objects in Python A Guide to Clarity and Efficiency Type hinting in Python helps developers write more readable and maintainable code However 2 min read 03-10-2024 29
Python generic protocol with method taking instance of the protocol (e.g. Functor) Pythons Generic Protocols A Deep Dive into Functors and Beyond Pythons type system has evolved significantly offering powerful tools like generics and protocols 2 min read 03-10-2024 29
How do I type generic callables with default value in Python? Typing Generic Callables with Default Values in Python A Comprehensive Guide Scenario You re working on a Python project where you want to define a function tha 2 min read 02-10-2024 28
Annotating a decorator with generic Protocols causes "arg-type" (incompatible type) error involving `Never` Understanding arg type incompatible type Errors with Decorators and Generic Protocols in Python Decorators are a powerful tool in Python allowing you to modify 2 min read 02-10-2024 36
explicit tuple generic expansion Explicit Tuple Generic Expansion in Python A Deep Dive Understanding the Problem Pythons type hints are a powerful tool for code clarity and maintainability How 2 min read 01-10-2024 29
Type narrowing via inequality check against single-member enum works only for unions with certain types Type Narrowing with Single Member Enums A Case of Unexpected Behavior Type Scripts type narrowing is a powerful feature that helps ensure type safety by allowin 2 min read 01-10-2024 31