Allows builtins to be generic aliases (PEP 585)

AllanDaemon · Sep 18, 2020 · 22a4789 · 22a4789
1 parent 37777b3
commit 22a4789
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/mypy/main.py b/mypy/main.py
@@ -84,6 +84,10 @@ def flush_errors(new_messages: List[str], serious: bool) -> None:
         except BrokenPipeError:
             sys.exit(2)
 
+    if options.python_version >= (3, 9):
+        from mypy.nodes import nongen_builtins
+        nongen_builtins.clear()
+
     serious = False
     blockers = False
     res = None