fix tests

Author: chadrik

mypy/stubgenc.py

@@ -540,10 +540,14 @@ def generate_function_stub(
         The 'class_name' is used to find signature of __init__ or __new__ in
         'class_sigs'.
         """
+        docstr: Any = getattr(obj, "__doc__", None)
+        if not isinstance(docstr, str):
+            docstr = None
+
         ctx = FunctionContext(
             self.module_name,
             name,
-            docstr=getattr(obj, "__doc__", None),
+            docstr=docstr,
             is_abstract=self.is_abstract_method(obj),
             class_info=class_info,
         )

mypy/test/teststubgen.py

@@ -1097,7 +1097,7 @@ def test(arg0: str) -> None:
         mod = ModuleType(self.__module__, "")
         gen = InspectionStubGenerator(mod.__name__, known_modules=[mod.__name__], module=mod)
         gen.generate_function_stub("test", test, output=output)
-        assert_equal(output, ["def test(*args, **kwargs) -> Any: ..."])
+        assert_equal(output, ["def test(*args, **kwargs): ..."])
         assert_equal(gen.get_imports().splitlines(), [])
 
     def test_generate_c_property_with_pybind11(self) -> None: