8000 [Regression/Backward compatibility] ImportError: cannot import name 'MaskedArray' when building with scikit-learn release 0.23.0 · Issue #17213 · scikit-learn/scikit-learn · GitHub
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[Regression/Backward compatibility] ImportError: cannot import name 'MaskedArray' when building with scikit-learn release 0.23.0 #17213

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neomatrix369 opened this issue May 13, 2020 · 2 comments
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[Regression/Backward compatibility] ImportError: cannot import name 'MaskedArray' when building with scikit-learn release 0.23.0 #17213

neomatrix369 opened this issue May 13, 2020 · 2 comments

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@neomatrix369
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neomatrix369 commented May 13, 2020 •
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Describe the bug

Running existing packages/programs with the latest release of 0.23.0 gives an import error on MaskedArray.

Bounding the requirements to < 0.23.0 resolves this issue, but then it reverts to the older version although would be good to be on the latest release.

Steps/Code to Reproduce

Setup

$ pip install scikit-learn>=0.20.2

or 

$ pip install scikit-learn==0.23.0

Code

from sklearn.utils.fixes import MaskedArray
....
<rest of your code>

Expected Results

No exception or a warning with an alternative solution to the above issue. A depreciation message if the class has been removed.

Although, from https://github.com/scikit-learn/scikit-learn/blob/master/sklearn/utils/fixes.py#L20 it appears that this is due to be removed in 0.25.0.

Actual Results

ImportError while importing test module '/opt/atlassian/pipelines/agent/build/tests_package_name/module.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
tests/test_package_name.py:7: in <module>
    from package_name import H2OGradientBoostingModel
package_name/module.py:5: in <module>
    from skopt import gp_minimize
/usr/local/lib/python3.6/site-packages/skopt/__init__.py:54: in <module>
    from .searchcv import BayesSearchCV
/usr/local/lib/python3.6/site-packages/skopt/searchcv.py:16: in <module>
    from sklearn.utils.fixes import MaskedArray
E   ImportError: cannot import name 'MaskedArray'

Versions

0.23.0
@Innixma Innixma mentioned this issue May 13, 2020
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@neomatrix369 neomatrix369 changed the title [Error] ImportError: cannot import name 'MaskedArray' when building with scikit-learn release 0.23.0 [Regression/Backward compatibility] ImportError: cannot import name 'MaskedArray' when building with scikit-learn release 0.23.0 May 13, 2020
@cmarmo
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cmarmo commented May 13, 2020

Hi @neomatrix369, thanks for reaching out. Closing as duplicate of #17198. Fixed by @NicolasHug in #17199

@cmarmo cmarmo closed this as completed May 13, 2020
@rth
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rth commented May 13, 2020 •
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Also see temporary workaround in scikit-optimize/scikit-optimize#902 (comment)

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