Uploading with requests_toolbelt

Python

import os
import requests
from requests_toolbelt import MultipartEncoder, MultipartEncoderMonitor

def upload(filename, url, key='file', user_agent='HTTP-UPLOADER/1.0', callback=None):
	total_size = os.stat(filename).st_size
	payload = {key: (filename, open(filename, 'rb'), "application/octet-stream")}
	encoder = MultipartEncoder(fields=payload, encoding='ascii')
	def encoder_callback(mon):
		if callback is not None:
			callback(mon.bytes_read, total_size)
	monitor = MultipartEncoderMonitor(encoder, encoder_callback)
	headers = {'content-type': monitor.content_type, 'user-agent': user_agent}
	r = requests.post(url, data=monitor, headers=headers)
	r.raise_for_status()
	return r.content