Fix ParamSpec (2)

cdce8p · cdce8p · commit 74e627eb5416 · 2024-02-02T13:05:10.000+01:00
diff --git a/mypy/expandtype.py b/mypy/expandtype.py
@@ -252,7 +252,7 @@ def visit_param_spec(self, t: ParamSpecType) -> Type:
         )
 
         while True:
-            if has_param_specs(repl):
+            if has_param_specs(repl) and not isinstance(repl, (ParamSpecType, Instance)):
                 if repl in self.recursive_guard:
                     break
                 self.recursive_guard.add(repl)

Original file line number	Diff line number	Diff line change
`@@ -252,7 +252,7 @@ def visit_param_spec(self, t: ParamSpecType) -> Type:`
`252`	`252`	`)`
`253`	`253`
`254`	`254`	`while True:`
`255`		`- if has_param_specs(repl):`
	`255`	`+ if has_param_specs(repl) and not isinstance(repl, (ParamSpecType, Instance)):`
`256`	`256`	`if repl in self.recursive_guard:`
`257`	`257`	`break`
`258`	`258`	`self.recursive_guard.add(repl)`