Error when using: db = ExplainerDashboard.from_config("dashboard.yaml").flask_server()

[jaimeggb]

The last part of the error is:

TypeError: _rebuild() got an unexpected keyword argument 'impl_kind'

The full error is:

C:\virtual_environments\venv_ipo_2\lib\site-packages\xgboost\core.py:160: UserWarning: [09:05:33] WARNING: C:\buildkite-agent\builds\buildkite-windows-cpu-autoscaling-group-i-0b3782d1791676daf-1\xgboost\xgboost-ci-windows\src\common/error_msg.h:80: If you are loading a serialized model (like pickle in Python, RDS in R) or
configuration generated by an older version of XGBoost, please export the model by calling
`Booster.save_model` from that version first, then load it back in current version. See:

    https://xgboost.readthedocs.io/en/stable/tutorials/saving_model.html

for more details about differences between saving model and serializing.

Traceback (most recent call last):
  File "C:\web_app_explainer\app.py", line 4, in <module>
    db = ExplainerDashboard.from_config("dashboard.yaml").flask_server()
  File "C:\virtual_environments\venv_ipo_2\lib\site-packages\explainerdashboard\dashboards.py", line 908, in from_config
    explainer = BaseExplainer.from_file(config["dashboard"]["explainerfile"])
  File "C:\virtual_environments\venv_ipo_2\lib\site-packages\explainerdashboard\explainers.py", line 428, in from_file
    return joblib.load(filepath)
  File "C:\virtual_environments\venv_ipo_2\lib\site-packages\joblib\numpy_pickle.py", line 658, in load
    obj = _unpickle(fobj, filename, mmap_mode)
  File "C:\virtual_environments\venv_ipo_2\lib\site-packages\joblib\numpy_pickle.py", line 577, in _unpickle
    obj = unpickler.load()
  File "C:\AppData\Local\Programs\Python\Python39\lib\pickle.py", line 1212, in load
    dispatch[key[0]](self)
  File "C:\AppData\Local\Programs\Python\Python39\lib\pickle.py", line 1589, in load_reduce
    stack[-1] = func(*args)
  File "C:\virtual_environments\venv_ipo_2\lib\site-packages\numba\core\serialize.py", line 152, in custom_rebuild
    return cls._rebuild(**states)
TypeError: _rebuild() got an unexpected keyword argument 'impl_kind'

The full python code I'm using in app.py is:

from explainerdashboard import ExplainerDashboard

# Load the dashboard configuration
db = ExplainerDashboard.from_config("dashboard.yaml").flask_server()

# Create a flask app instance to serve the dashboard
app = db.flask_server()

if __name__ == "__main__":
    app.run(debug=True)

The files of relevance in the web_app_explainer folder are:

• app.py
• explainer.joblib
• dashboard.yaml

[oegedijk]

Looks like maybe you installed a new version of xgboost than the version under which you stored the explainer? And the new version cannot load the old format? (I think xgboost recently released 2.0 right?)

[jaimeggb]

Yes that was one of the problems. I had to downgrade to xgboost==1.7.2. In the end the dependencies used that worked after much trial and error were:

cloudpickle
explainerdashboard==0.4.7
xgboost==1.7.2
mlflow
numba==0.58.1
pandas==1.4.2

And the code that worked was:

import cloudpickle
from explainerdashboard import ExplainerDashboard
from flask import Flask

# Load the explainer object with cloudpickle
with open("explainer.joblib", "rb") as f:
    explainer = cloudpickle.load(f)

# Create the ExplainerDashboard instance directly instead of using dashboard.yaml configuration file
dashboard = ExplainerDashboard(explainer,
                               title="Title",
                               description="Description text.",
                               simple=False,
                               # add other parameters as needed
                              )

# Create a Flask app instance to serve the dashboard
app = dashboard.flask_server()