How to check if dask dataframe is empty

问题

Is there a dask equivalent of pandas empty function? I want to check if a dask dataframe is empty but df.empty return AttributeError: 'DataFrame' object has no attribute 'empty'

回答1:

Dask doesn't currently support this, but you can compute the length on the fly:

len(df) == 0

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len(df.index) == 0 # Likely to be faster 

来源：https://stackoverflow.com/questions/50206730/how-to-check-if-dask-dataframe-is-empty