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Ensure pandas DataFrame column names are treated as strings in type error message (#4481)

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Sean Owen 2019-05-21 03:19:35 -05:00 committed by Jiaming Yuan
parent 515f5f5c47
commit 5a567ec249
1 changed files with 1 additions and 1 deletions
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python-package/xgboost/core.py
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@ -231,7 +231,7 @@ def _maybe_pandas_data(data, feature_names, feature_types):
data_dtypes = data.dtypes
if not all(dtype.name in PANDAS_DTYPE_MAPPER for dtype in data_dtypes):
bad_fields = [data.columns[i] for i, dtype in
bad_fields = [str(data.columns[i]) for i, dtype in
enumerate(data_dtypes) if dtype.name not in PANDAS_DTYPE_MAPPER]
msg = """DataFrame.dtypes for data must be int, float or bool.