catalogue_registry_function_registration_and_retrieval.py

1import catalogue
2
3# 1. Create a new registry
4# This creates a namespace 'my_package', 'my_registry'
5functions = catalogue.create("my_package", "my_registry")
6
7# 2. Register a function using the @register decorator
8@functions.register("hello_world")
9def say_hello(name):
10    return f"Hello, {name}!"
11
12# 3. Retrieve a function from the registry
13# This is useful for plugins or dynamic configuration
14func = functions.get("hello_world")
15
16# 4. Call the retrieved function
17print(func("World"))  # Output: Hello, World!
18
19# Optional: List all registered functions
20print(functions.get_all())  # {'hello_world': <function say_hello at ...>}