Separate getting docstrings and getting signatures for names, see discussion #1466

test/test_api/test_completion.py

@@ -145,6 +145,13 @@ def test_async(Script, environment):
     assert 'hey' in names
 
 
+def test_method_doc_with_signature(Script):
+    code = 'f = open("")\nf.writelin'
+    c, = Script(code).complete()
+    assert c.name == 'writelines'
+    assert c.docstring() == 'writelines(lines: Iterable[AnyStr]) -> None'
+
+
 def test_with_stmt_error_recovery(Script):
     assert Script('with open('') as foo: foo.\na').complete(line=1)