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utils

django_spire.core.utils

get_object_from_module_string

Source code in django_spire/core/utils.py 
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def get_object_from_module_string(module_string: str) -> Any:
    try:
        module_string, object_name = module_string.rsplit('.', 1)
        module = __import__(module_string, fromlist=[object_name])
    except ImportError as e:
        message = f'Could not import module: {module_string}'
        raise ImportError(message) from e

    return getattr(module, object_name)

get_callable_from_module_string_and_validate_arguments

Source code in django_spire/core/utils.py 
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def get_callable_from_module_string_and_validate_arguments(
    module_string: str,
    valid_args: Sequence[str]
) -> Callable:
    callable_ = get_object_from_module_string(module_string)

    if not callable(callable_):
        message = f'Object {module_string} is not callable'
        raise TypeError(message)

    sig = inspect.signature(callable_)
    params = sig.parameters

    for name in valid_args:
        if name not in params:
            message = f'{callable_.__qualname__} is missing required argument: {name}'
            raise TypeError(message)

    return callable_