For when you just want to dump some data on a remote sftp server

sftpput

#!/usr/bin/python

BUFSIZE=4096

import sys
import paramiko
import re

def parse_url(urlstr):
	urlre = re.compile("^(([^@:]+)@)?([^:]+):(.*)$")
	match = urlre.match(urlstr)
	if match is None:
		print >>sys.stderr, "URL must be in form [username@]host:path"
		sys.exit(1)
	username = match.group(2)
	hostname = match.group(3)
	path = match.group(4)

	return (hostname, username, path)


def copy(fromfd, tofd):
	while True:
		buf = fromfd.read(BUFSIZE)
		if buf == "":
			return
		tofd.write(buf)


def main():
	if len(sys.argv) != 2:
		print >>sys.stderr, "Usage: %s <url>" % sys.argv[0]
		sys.exit(1)

	hostname, username, path = parse_url(sys.argv[1])

	client = paramiko.client.SSHClient()
	client.load_system_host_keys()
	client.set_missing_host_key_policy(paramiko.client.RejectPolicy())
	client.connect(hostname, username=username)
	sftp = client.open_sftp()
	with sftp.open(path, "wx", bufsize=BUFSIZE) as remotefd:
		copy(sys.stdin, remotefd)


if __name__ == "__main__":
	main()