After as ther should not follow any completions.

jedi/api/completion.py

@@ -164,6 +164,9 @@ class Completion:
                     level,
                     only_modules
                 )
+            elif nodes and nodes[-1] == 'as':
+                # No completions for ``with x as foo`` and ``import x as foo``.
+                return []
             else:
                 completion_names += self._simple_complete(completion_parts)
 

test/completion/keywords.py

@@ -25,3 +25,7 @@ a + break
 
 #? ['break']
 b; break
+
+# Should not complete after as.
+#? []
+with open() as f