gistfile1.txt

#!/usr/bin/python

import urllib2
import json
import pprint
from poster.encode import multipart_encode
from poster.streaminghttp import register_openers

register_openers()

token = '1|oauth_secret=...'

params = {
    'oauth_token': token,
    'caption': 'my cat with russian toy camera!',
    'filter': 'xpro',
    'share.twitter': 1,
    'share.facebook': 0,
    'geo.lat': 37.74086,
    'geo.lon': -122.50009,
    'file': file('cat.jpg', 'rb'),
}

datagen, headers = multipart_encode(params)

request = urllib2.Request('https://api-upload.picplz.com/api/v2/upload_basic.json', datagen, headers)

response_obj = json.load(urllib2.urlopen(request))

pprint.pprint(response_obj)