Fixes misc/proper_plugin crash on isinstance(1) (#11136)

python · Sep 18, 2021 · 836ff14 · 836ff14
1 parent c6e8a0b
commit 836ff14
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/misc/proper_plugin.py b/misc/proper_plugin.py
@@ -34,6 +34,9 @@ def get_function_hook(self, fullname: str
 
 
 def isinstance_proper_hook(ctx: FunctionContext) -> Type:
+    if len(ctx.arg_types) != 2 or not ctx.arg_types[1]:
+        return ctx.default_return_type
+
     right = get_proper_type(ctx.arg_types[1][0])
     for arg in ctx.arg_types[0]:
         if (is_improper_type(arg) or