Error using the feather format package

Question

I am having trouble using the feather format to export data. I have installed the package using:

conda install feather-format -c conda-forge

however, when I use pd.to_feather() I get an error telling me to install the package (which is already installed).

ImportError: the feather-format library is not installed you can install via conda conda install feather-format -c conda-forge or via pip pip install -U feather-format

I also tried using pyarrow, but I am getting another error, saying

ImportError: cannot import name 'cpu_count'

Can you please tell what am I doing wrong? Thank you

Answer 1

Feather has found a new home in the pyarrow module, so no need to install Feather anymore.

I can recommend you to have a look at Feather format update: Whence and Whither?, that explains why and in general is a nice little walk through of the changes plus a benchmark between the pyarrow and legacy feather module - interesting since we all use the format for performance reasons :-)