dynamic_registry 1.0.0

Registry with dynamic entries (can be enriched with data in runtime)

dynamic_registry

Create registries with dynamic entries - which may be enriched with some data at runtime.

dynamic_registry provides an elegant and reusable way to create registries that dynamically track and manage entries. Useful for plugins, handlers, or any scenario requiring dynamic discovery and access to components.

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Installation

pip install dynamic-registry

Basic usage

from dynamic_registry import Registry, Entry


class ErrorsRegistry(metaclass=Registry):
    ERROR_404 = Entry(message='Not found!')
    ERROR_500 = Entry(message='Internal server error!')
    ERROR_501 = Entry(message='Not authorized!')


print(ErrorsRegistry.ERROR_500())
# Note, how dynamic enrichment works:
print(ErrorsRegistry.ERROR_501(user='Nigan', action='ACCESS_ALEXANDREA_SERVER', reason='User is in the blacklist!'))
print(ErrorsRegistry.ERROR_501(user='Rick', action='ACCESS_ALEXANDREA_SERVER', reason='Invalid username/password!'))
# You can even overwrite the key field and defaults defined during the class creation:
print(ErrorsRegistry.ERROR_500(message='Overwritten message!'))
print(ErrorsRegistry.ERROR_500(key='ERROR_500_OVERWRITTEN_KEY'))

for name, entry in ErrorsRegistry.entries.items():
    print(f'ENTRY: {name} ==> {entry}')

Options

Optionally, you can use custom entry key/name field (default is key) like this:

from dynamic_registry import Registry, Entry


class MyRegistry(metaclass=Registry, key_field='id'):
    ENTRY = Entry()


print(MyRegistry.ENTRY())

Or you can disable this behavior at all, by setting key_field to None:

from dynamic_registry import Registry, Entry


class MyRegistry(metaclass=Registry, key_field=None):
    ENTRY = Entry()


print(MyRegistry.ENTRY())