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LabelEncoder doesn't work correctly for unicode labels in Python 2.6 + numpy 1.3 #2481

LabelEncoder doesn't work correctly for unicode labels in Python 2.6 + numpy 1.3 #2481 Closed ...
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java.lang.IllegalArgumentException: Attribute 'xgboost.sklearn.XGBClassifier._le' has an unsupported value (Python class sklearn.preprocessing._label.LabelEncoder)

We are using this package for a long time at production with python 2.7 with the following code: ai-model-infra==0.1 awscli==1.16.300 beautifulsoup4==4.7.1 boto==2.49.0 boto3==1.10.36 ...