common.reflection.ref

DummyModule Objects

class DummyModule(ModuleType)

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A dummy module from which you can import anything

import_module_with_missing

def import_module_with_missing(
    name: str, missing_modules: Tuple[str, ...] = ()) -> ModuleType

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Module importer that ignores missing modules by importing a dummy module

object_from_ref

def object_from_ref(
        ref: str,
        typechecker: Callable[[Any], Any],
        raise_exec_errors: bool = False,
        import_missing_modules: bool = False) -> Tuple[Any, ImportTrace]

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Splits ref on module.attr and import module, then gets attr and runs typechecker on it. If import_missing_modules is True, will use custom importer that replaces missing modules with dummy from which you can import anything. NOTE: if your import got patched it will not work. Use this only to import refs ie. to verify if they exist, not in production code if raise_exec_errors, all errors that happen when code of the imported module is executed are raised, otherwise corresponding trace is returned

Returns: a tuple (typechecked attr, trace if error)