Support for typing.Tuple[type, ...]

jedi/evaluate/jedi_typing.py

@@ -35,6 +35,11 @@ def factory(typing_name, indextypes):
 
     class Tuple(Sequence, tuple):
         def __getitem__(self, index):
+            if indextypes[1] == ...:
+                # https://www.python.org/dev/peps/pep-0484/#the-typing-module
+                # Tuple[int, ...] means a tuple of ints of indetermined length
+                return indextypes[0]()
+            else:
                 return indextypes[index]()
 
     class AbstractSet(Iterable, abc.Set):

test/completion/pep0484_typing.py

@@ -83,7 +83,7 @@ def tuple(
     q[2]
     #? B()
     r[0]
-    ##? B()  --- TODO fix support for arbitrary length
+    #? B()
     r[1]
     #? B()
     r[2]