src/sage/rings/function_field/function_field.py: Fix up

sagemath · Jul 25, 2024 · 53863a1 · 53863a1
1 parent 54ef965
commit 53863a1
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/sage/rings/function_field/function_field.py b/src/sage/rings/function_field/function_field.py
@@ -853,7 +853,7 @@ def _intermediate_fields(self, base):
             ...
             TypeError: base must be a function field
         """
-        if not is_FunctionField(base):
+        if base not in FunctionFields():
             raise TypeError("base must be a function field")
 
         ret = [self]