Python 3.12 TypeError: metaclass conflict: #6769
Replies: 3 comments 1 reply
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Hey there, @Xubaosheng! I'm here to help you with your Python 3.12 TypeError. I'm Dosu, a bot that can assist you in solving bugs, answering questions, and becoming a contributor. Let's tackle this issue together! I found a similar discussion regarding a "metaclass conflict" error on macOS, which might be relevant to your issue. The error occurs when a class inherits from multiple base classes with incompatible metaclasses. In that case, the solution was to create a custom metaclass that combines the metaclasses of the conflicting base classes [1]. To resolve your issue, you can try creating a custom metaclass that combines the metaclasses of the conflicting classes. Here's a general approach:
Here's an example of how you might implement this: from wrapt import ObjectProxy
from abc import ABC, ABCMeta
# Define a custom metaclass that combines the metaclasses of ObjectProxy and ABC
class CombinedMeta(ABCMeta, type(ObjectProxy)):
pass
# Use the custom metaclass for the class causing the conflict
class ModelData(ObjectProxy, ABC, metaclass=CombinedMeta):
"""pd.DataFrame or pd.Series wrapped with extra functions and metadata."""
@property
@abstractmethod
def null_value(self) -> Any:
pass This approach should resolve the metaclass conflict by ensuring that the class uses a compatible metaclass that combines the necessary features of both base classes. Make sure to test this solution in your environment to confirm it resolves the issue. To continue talking to Dosu, mention @dosu. Help Dosu learn! Give it feedback: Great Response | Irrelevant Answer | Incorrect Sources | Too Verbose | Hallucination | Bug Report | Other |
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@dosu not work |
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Hey @Xubaosheng. Thanks for reporting this issue. Can you provide a minimal reproducible example to help us debug? |
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Python3.12 import phoenix error,what can I do,Help

My pip list below :
arize-phoenix 8.12.1
arize-phoenix-client 1.1.0
arize-phoenix-evals 0.20.3
wrapt 1.17.2
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