TypeError: Multiple inheritance with NamedTuple is not supported

[tulliopizzuti]

Hello I'm a newby. I am trying to run the code example_inference.py with dream command and I enter a text string to generate the image, but this error comes out:

Traceback (most recent call last): File "C:\Users\Tullio\Desktop\dalle2\example_inference.py", line 1, in from dalle2_laion import DalleModelManager, ModelLoadConfig, utils File "C:\Users\Tullio\Desktop\dalle2\dalle2_laion__init__.py", line 1, in from dalle2_laion.dalle2_laion import DalleModelManager File "C:\Users\Tullio\Desktop\dalle2\dalle2_laion\dalle2_laion.py", line 73, in class ModelInfo(NamedTuple, Generic[ModelType]): File "C:\Users\Tullio\AppData\Local\Programs\Python\Python39\lib\typing.py", line 1929, in _namedtuple_mro_entries raise TypeError("Multiple inheritance with NamedTuple is not supported") TypeError: Multiple inheritance with NamedTuple is not supported

Do you have any suggestions?

If I modify line 73 of the file dalle2_laion.py in
class ModelInfo(Generic[ModelType]): The code continues and the error disappears. However this other error comes out:

Traceback (most recent call last): File "C:\Users\Tullio\Desktop\dalle2\example_inference.py", line 151, in inference(obj={}) File "C:\Users\Tullio\AppData\Local\Programs\Python\Python39\lib\site-packages\click\core.py", line 1130, in call return self.main(args, kwargs) File "C:\Users\Tullio\AppData\Local\Programs\Python\Python39\lib\site-packages\click\core.py", line 1055, in main rv = self.invoke(ctx) File "C:\Users\Tullio\AppData\Local\Programs\Python\Python39\lib\site-packages\click\core.py", line 1657, in invoke return _process_result(sub_ctx.command.invoke(sub_ctx)) File "C:\Users\Tullio\AppData\Local\Programs\Python\Python39\lib\site-packages\click\core.py", line 1404, in invoke return ctx.invoke(self.callback, ctx.params) File "C:\Users\Tullio\AppData\Local\Programs\Python\Python39\lib\site-packages\click\core.py", line 760, in invoke return __callback(args, *kwargs) File "C:\Users\Tullio\AppData\Local\Programs\Python\Python39\lib\site-packages\click\decorators.py", line 26, in new_func return f(get_current_context(), args, **kwargs) File "C:\Users\Tullio\Desktop\dalle2\example_inference.py", line 43, in dream dreamer: BasicInference = BasicInference.create(model_config, verbose=verbose) File "C:\Users\Tullio\Desktop\dalle2\dalle2_laion\scripts\InferenceScript.py", line 29, in create model_manager = DalleModelManager(config) File "C:\Users\Tullio\Desktop\dalle2\dalle2_laion\dalle2_laion.py", line 92, in init self.decoder_info = self.load_decoder(model_load_config.decoder) File "C:\Users\Tullio\Desktop\dalle2\dalle2_laion\dalle2_laion.py", line 237, in load_decoder return ModelInfo(decoder, decoder_version, requires_clip, decoder_data_requirements) TypeError: ModelInfo() takes no arguments

[Veldrovive]

That looks like a version issue. What version of python are you using?

[tulliopizzuti]

I'm using first 3.10 and next 3.9. The error occurs in both versions. Do I try the 3.8?

[Veldrovive]

If higher versions of python cause an error I need to fix that. You can fix this for now by taking out the Generic multi-inheritance and then removing the ModelInfo type hint from the other places in the file.

I’m traveling today so I won’t be able to address this immediately.

[tulliopizzuti]

Ok thanks for the help, i will try your solution

[Veldrovive]

Multi-inheritance for named tuples was removed in 3.9. So actually downgrading to 3.8 would actually have fixed the issue...

Anyways since this feature will not be supported in the future I will remove this usage when I am back on the ground.

[cinerieus]

PR submitted #19 :) Unless of course you want to remove it entirely.

[Veldrovive]

Pull request was merged in. This issue should now be fixed.