also patch _json_schema_to_python_type for bool schemas

app.py

@@ -11,10 +11,11 @@ import os
 
 # Workaround for a long-standing gradio_client bug that hits the /info endpoint
 # when any component emits a JSON schema with `additionalProperties: True/False`
-# (a plain bool). get_type() does `if "const" in schema:` which raises
-# `TypeError: argument of type 'bool' is not iterable`. Patch it before Gradio
-# loads the FastAPI routes.
+# (a plain bool). Both get_type() and _json_schema_to_python_type() assume the
+# schema is a dict and crash on bools. Patch both before Gradio loads its
+# FastAPI routes.
 import gradio_client.utils as _gcu
+
 _orig_get_type = _gcu.get_type
 def _safe_get_type(schema):
     if not isinstance(schema, dict):
@@ -22,6 +23,14 @@ def _safe_get_type(schema):
     return _orig_get_type(schema)
 _gcu.get_type = _safe_get_type
 
+_orig_json_schema = _gcu._json_schema_to_python_type
+def _safe_json_schema(schema, defs=None):
+    if not isinstance(schema, dict):
+        # `additionalProperties: True` → accepts anything; `False` → accepts nothing.
+        return "Any" if schema else "None"
+    return _orig_json_schema(schema, defs)
+_gcu._json_schema_to_python_type = _safe_json_schema
+
 import gradio as gr
 import pandas as pd