Write pandas dataframe as compressed CSV directly to Amazon s3 bucket?

Question

I currently have a script that reads the existing version of a csv saved to s3, combines that with the new rows in the pandas dataframe, and then writes that directly back t

Answer 1

There is a more elegant solution using smart-open (https://pypi.org/project/smart-open/)

import pandas as pd
from smart_open import open

df.to_csv(open('s3://bucket/prefix/filename.csv.gz','w'),index = False)