11

I tried saving a dataframe to feather format but while loading back I got the error

os.makedirs('tmp', exist_ok=True)
df_hist.to_feather('tmp/historical-raw')

Here's the loading back into the dataset

df_hist= pd.read_feather('tmp/historical-raw')

which gives the following error

read_feather() got an unexpected keyword argument 'nthreads'

Thanks in advance

kramer
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  • Have you tried updating your pandas and pyarrow installations? There are some workarounds offered [here](https://github.com/pandas-dev/pandas/issues/23053). – ayhan Jan 01 '19 at 13:47
  • Which version of pandas you are running with? – Karn Kumar Jan 01 '19 at 14:21
  • @pygo I am running the latest version. Tried updating but requirement already satisfied – kramer Jan 01 '19 at 17:37

2 Answers2

14

Try replacing below line 

df_hist= pd.read_feather('tmp/historical-raw')

with

import feather
df_hist=feather.read_dataframe('tmp/historical-raw')

above change worked for me

Lakshmi Bhavani - Intel
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2

read_feather function is as follows:

feather = _try_import()
path = _stringify_path(path)

if feather.__version__ < LooseVersion('0.4.0'):
    return feather.read_dataframe(path)

return feather.read_dataframe(path, nthreads=nthreads)

The read_feather function calls the feather.read_dataframe inturn. You can import feather and call feather.read_dataframe('path') directly. 

import feather
feather.read_dataframe(path)
Mino De Raj
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