saving csv file to s3 using boto3

Question

I am trying to write and save a CSV file to a specific folder in s3 (exist). this is my code:

from io import BytesIO
import pandas as pd
import boto3
s3 =         


        

Answer 1

This should work:

bucket = bucketName
key = f"{folder}/{filename}"
csv_buffer=StringIO()
df.to_csv(csv_buffer)
content = csv_buffer.getvalue()
s3.put_object(Bucket=bucket, Body=content,Key=key)

AWS bucket names are not allowed to have slashes ("/"), which should be part of Key. AWS uses slashes to show "virtual" folders in the dashboard. Since csv is a text file I'm using StringIO instead of BytesIO