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COMPAT: pandas 0.21.0 #2736

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#2737
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COMPAT: pandas 0.21.0#2736
#2737
@TomAugspurger

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@TomAugspurger
TomAugspurger
opened on Oct 3, 2017

In pandas-dev/pandas#17710 pandas delays the import of various libraries. An upshot of this is that pandas.core.computation/__init__.py doesn't import pandas.core.computation.expression, so the code in

dask/dask/dataframe/core.py

Lines 38 to 43 in 0f29e7b

if PANDAS_VERSION >= '0.20.0':
from pandas.util import cache_readonly
pd.core.computation.expressions.set_use_numexpr(False)
else:
from pandas.util.decorators import cache_readonly
pd.computation.expressions.set_use_numexpr(False)
fails.

The recommended way to set that value is pd.set_option("compute.use_numexpr", True).

Does anyone know what that's being set in the first place? I'll look around the history.

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