typedispatch 0.2.0

TypeDispatch is a Python utility for registering and dispatching functions based on object types, supporting inheritance through method resolution order (MRO).

typedispatch

typedispatch is a Python library for registering functions based on type resolution. It allows you to associate types with functions and dynamically look up functions based on the type of an object, including handling inheritance hierarchies.

Installation

pip install typedispatch

Usage

Basic Registration

You can register functions directly with the register method:

from typedispatch import TypeDispatch, TypeDispatchError

typedispatch = TypeDispatch()

typedispatch.register(int, lambda x: f"Processing integer: {x}")
print(typedispatch.lookup(10))  # Output: Processing integer: 10

Using the Decorator

The library also provides a convenient decorator for registering functions with specific types. This makes the code cleaner and easier to manage.

from typedispatch import TypeDispatch

typedispatch = TypeDispatch()

@typedispatch.register_decorator(int)
def handle_integer(x):
    return f"Handling integer: {x}"

@typedispatch.register_decorator(str)
def handle_string(x):
    return f"Handling string: {x}"

print(typedispatch.lookup(42))        # Output: Handling integer: 42
print(typedispatch.lookup("hello"))   # Output: Handling string: hello