Add sets and iterable/iterator

jedi/evaluate/jedi_typing.py

@@ -7,7 +7,19 @@ from collections import abc
 
 
 def factory(typing_name, indextype):
-    class Sequence(abc.Sequence):
+    class Iterable(abc.Iterable):
+        def __iter__(self):
+            yield indextype()
+
+    class Iterator(Iterable, abc.Iterator):
+        def next(self):
+            """ needed for python 2 """
+            return self.__next__()
+
+        def __next__(self):
+            return indextype()
+
+    class Sequence(Iterable, abc.Sequence):
         def __getitem__(self, index: int):
             return indextype()
 
@@ -15,12 +27,29 @@ def factory(typing_name, indextype):
         def __setitem__(self, index: int, value: indextype):
             pass
 
+        def __delitem__(self, index: int, value: indextype):
+            pass
+
     class List(MutableSequence, list):
+        pass
+
+    class AbstractSet(Iterable, abc.Set):
+        pass
+
+    class MutableSet(AbstractSet, abc.MutableSet):
+        def add(item: indextype):
+            pass
+
+        def discard(item: indextype):
             pass
 
     dct = {
         "Sequence": Sequence,
         "MutableSequence": MutableSequence,
         "List": List,
+        "Iterable": Iterable,
+        "Iterator": Iterator,
+        "AbstractSet": AbstractSet,
+        "MutableSet": MutableSet,
     }
     return dct[typing_name]