upload a directory to s3 with boto

I am already connected to the instance and I want to upload the files that are generated from my python script directly to S3. I have tried this:

import boto
s3 = boto.connect_s3()
bucket = s3.get_bucket('alexandrabucket')
from boto.s3.key import Key
key = bucket.new_key('s0').set_contents_from_string('some content')

but this is rather creating a new file s0 with the context "same content" while I want to upload the directory s0 to mybucket.

I had a look also to s3put but I didn't manage to get what I want.

There is nothing in the boto library itself that would allow you to upload an entire directory. You could write your own code to traverse the directory using os.walk or similar and to upload each individual file using boto.

There is a command line utility in boto called s3put that could handle this or you could use the AWS CLI tool which has a lot of features that allow you to upload entire directories or even sync the S3 bucket with a local directory or vice-versa.