fix: resolve TypeError in weather agent Gradio app example #3178
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Fix TypeError: argument of type 'bool' is not iterable when launching the Gradio weather agent UI. Changes: - Replace dict[str, Any] return type with WeatherResponse Pydantic model in get_weather tool to avoid boolean additionalProperties in JSON schema - Add monkey patch for Gradio's JSON schema parser to handle boolean additionalProperties gracefully - Remove explicit type hints from Gradio callback functions to avoid schema introspection issues - Add api_name=False to submit handler to disable API generation - Remove unused typing.Any import The issue was caused by dict[str, Any] generating a JSON schema with additionalProperties: true (boolean), which Gradio's schema parser could not process. Using a proper Pydantic model resolves this.
DouweM
requested changes
Oct 16, 2025
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| # Monkey patch to fix Gradio's JSON schema parser for boolean additionalProperties | ||
| _original_json_schema_to_python_type = gradio_utils._json_schema_to_python_type |
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Should this be fixed in Gradio instead?
If using a BaseModel fixes it, we don't need this here right?
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Fix TypeError: argument of type 'bool' is not iterable when launching the Gradio weather agent UI.
Changes:
The issue was caused by dict[str, Any] generating a JSON schema with additionalProperties: true (boolean), which Gradio's schema parser could not process. Using a proper Pydantic model resolves this.