Gradio 4.26.0 Space no longer starts - TypeError: argument of type 'bool' is not iterable (working in 5.27.0)

Hi there.
Here is the README.md for my Text to Image Spaces.

title: retwpay-novaAnimeXL_ilV40HappyValentine
emoji: ๐Ÿ–ผ
colorFrom: purple
colorTo: red
sdk: gradio
sdk_version: 4.26.0
app_file: app.py
pinned: false

I get an error when I start Spaces.

To create a public link, set `share=True` in `launch()`.
ERROR:    Exception in ASGI application
Traceback (most recent call last):
  File "/usr/local/lib/python3.10/site-packages/uvicorn/protocols/http/h11_impl.py", line 403, in run_asgi
    result = await app(  # type: ignore[func-returns-value]
  File "/usr/local/lib/python3.10/site-packages/uvicorn/middleware/proxy_headers.py", line 60, in __call__
    return await self.app(scope, receive, send)
  File "/usr/local/lib/python3.10/site-packages/fastapi/applications.py", line 1054, in __call__
    await super().__call__(scope, receive, send)
  File "/usr/local/lib/python3.10/site-packages/starlette/applications.py", line 113, in __call__
    await self.middleware_stack(scope, receive, send)
  File "/usr/local/lib/python3.10/site-packages/starlette/middleware/errors.py", line 187, in __call__
    raise exc
  File "/usr/local/lib/python3.10/site-packages/starlette/middleware/errors.py", line 165, in __call__
    await self.app(scope, receive, _send)
  File "/usr/local/lib/python3.10/site-packages/gradio/route_utils.py", line 689, in __call__
    await self.app(scope, receive, send)
  File "/usr/local/lib/python3.10/site-packages/starlette/middleware/exceptions.py", line 62, in __call__
    await wrap_app_handling_exceptions(self.app, conn)(scope, receive, send)
  File "/usr/local/lib/python3.10/site-packages/starlette/_exception_handler.py", line 62, in wrapped_app
    raise exc
  File "/usr/local/lib/python3.10/site-packages/starlette/_exception_handler.py", line 51, in wrapped_app
    await app(scope, receive, sender)
  File "/usr/local/lib/python3.10/site-packages/starlette/routing.py", line 715, in __call__
    await self.middleware_stack(scope, receive, send)
  File "/usr/local/lib/python3.10/site-packages/starlette/routing.py", line 735, in app
    await route.handle(scope, receive, send)
  File "/usr/local/lib/python3.10/site-packages/starlette/routing.py", line 288, in handle
    await self.app(scope, receive, send)
  File "/usr/local/lib/python3.10/site-packages/starlette/routing.py", line 76, in app
    await wrap_app_handling_exceptions(app, request)(scope, receive, send)
  File "/usr/local/lib/python3.10/site-packages/starlette/_exception_handler.py", line 62, in wrapped_app
    raise exc
  File "/usr/local/lib/python3.10/site-packages/starlette/_exception_handler.py", line 51, in wrapped_app
    await app(scope, receive, sender)
  File "/usr/local/lib/python3.10/site-packages/starlette/routing.py", line 73, in app
    response = await f(request)
  File "/usr/local/lib/python3.10/site-packages/fastapi/routing.py", line 301, in app
    raw_response = await run_endpoint_function(
  File "/usr/local/lib/python3.10/site-packages/fastapi/routing.py", line 214, in run_endpoint_function
    return await run_in_threadpool(dependant.call, **values)
  File "/usr/local/lib/python3.10/site-packages/starlette/concurrency.py", line 39, in run_in_threadpool
    return await anyio.to_thread.run_sync(func, *args)
  File "/usr/local/lib/python3.10/site-packages/anyio/to_thread.py", line 56, in run_sync
    return await get_async_backend().run_sync_in_worker_thread(
  File "/usr/local/lib/python3.10/site-packages/anyio/_backends/_asyncio.py", line 2470, in run_sync_in_worker_thread
    return await future
  File "/usr/local/lib/python3.10/site-packages/anyio/_backends/_asyncio.py", line 967, in run
    result = context.run(func, *args)
  File "/usr/local/lib/python3.10/site-packages/gradio/routes.py", line 399, in api_info
    app.api_info = app.get_blocks().get_api_info()
  File "/usr/local/lib/python3.10/site-packages/gradio/blocks.py", line 2648, in get_api_info
    python_type = client_utils.json_schema_to_python_type(info)
  File "/usr/local/lib/python3.10/site-packages/gradio_client/utils.py", line 896, in json_schema_to_python_type
    type_ = _json_schema_to_python_type(schema, schema.get("$defs"))
  File "/usr/local/lib/python3.10/site-packages/gradio_client/utils.py", line 950, in _json_schema_to_python_type
    des = [
  File "/usr/local/lib/python3.10/site-packages/gradio_client/utils.py", line 951, in <listcomp>
    f"{n}: {_json_schema_to_python_type(v, defs)}{get_desc(v)}"
  File "/usr/local/lib/python3.10/site-packages/gradio_client/utils.py", line 958, in _json_schema_to_python_type
    f"str, {_json_schema_to_python_type(schema['additionalProperties'], defs)}"
  File "/usr/local/lib/python3.10/site-packages/gradio_client/utils.py", line 904, in _json_schema_to_python_type
    type_ = get_type(schema)
  File "/usr/local/lib/python3.10/site-packages/gradio_client/utils.py", line 866, in get_type
    if "const" in schema:
TypeError: argument of type 'bool' is not iterable

Until a month ago it started fine with the exact same code.
Yesterday, when I did a Restart Space, I got this error and it would not start.
If I set sdk-sdk_version to 5.27.0, it starts. But I have to use 4.x.
Is there any way to start it with sdk_version 4.x?
Here is my code.

1 Like

Try:

pydantic==2.10.6