How to use loaded_mypy_modules method in refurb

Best Python code snippet using refurb_python

mypy_visitor.py

Source:mypy_visitor.py Github

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...72 Any existing mypy module that was imported before needs to be reimported73 before use within the context.74 Upon exiting, the previous implementations are restored.75 """76 def loaded_mypy_modules() -> Iterator[str]:77 """Covenient block to get names of imported mypy modules"""78 for mod_name in sys.modules:79 if mod_name == "mypy" or mod_name.startswith("mypy."):80 yield mod_name81 # First, backup all imported mypy modules and remove them from sys.modules,82 # so they will not be found in resolution83 saved_mypy = {}84 for mod_name in list(loaded_mypy_modules()):85 saved_mypy[mod_name] = sys.modules.pop(mod_name)86 with prefer_pure_python_imports():87 # After the modules are clean, ensure the newly imported mypy modules88 # are their pure python versions.89 # - Pure python: methods are FunctionType90 # - Native: methods are MethodDescriptorType91 from mypy.traverser import TraverserVisitor92 assert isinstance(93 typing.cast(FunctionType, TraverserVisitor.visit_var), FunctionType94 )95 # Give back control96 yield97 # We're back and this is where we do cleanup. We'll remove all imported98 # mypy modules (pure python) and restore the previously backed-up ones99 # (allegedly native implementations)100 for mod_name in list(loaded_mypy_modules()):101 del sys.modules[mod_name]102 for mod_name, module in saved_mypy.items():103 sys.modules[mod_name] = module104def _get_class_globals(target_class: type, localns: Namespace) -> Namespace:105 """106 Get the globals namespace for the full class hierarchy that starts in107 target_class.108 This follows the recommendation of PEP-563 to resolve stringified type109 annotations at runtime.110 """111 all_globals = localns.copy()112 for base in inspect.getmro(target_class):113 all_globals.update(vars(sys.modules[base.__module__]))114 return all_globals...

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