Stubs should not become stubs again in the conversion function, fixes #1475

test/test_api/test_completion.py

@@ -431,8 +431,9 @@ def test_completion_cache(Script, module_injector):
     assert cls.docstring() == 'foo()\n\ndoc2'
 
 
-def test_typing_module_completions(Script):
-    for c in Script('import typing; typing.').completions():
+@pytest.mark.parametrize('module', ['typing', 'os'])
+def test_module_completions(Script, module):
+    for c in Script('import {module}; {module}.'.format(module=module)).completions():
         # Just make sure that there are no errors
         c.type
         c.docstring()