sketchfab-api.py

# easy_install poster
from poster.encode import multipart_encode
from poster.streaminghttp import register_openers
import urllib2

# Register the streaming http handlers with urllib2
register_openers()

path="./"
filename="model.dae"
description="Test of the api with a simple model"
token_api="ff00ff"
title="Uber Glasses"
tags="test collada glasses"
private=1
password=""

import json
import base64
import urllib2

url="https://api.sketchfab.com/v1/models"

data = {
    'title': title,
    'description': description,
    'fileModel': open(path+filename, 'rb'),
    'filenameModel': filename,
    'tags': tags,
    'token': token_api,
    'private': private,
    'password': password
}

datamulti, headers = multipart_encode(data)

request = urllib2.Request(url, datamulti, headers, None, True)
print urllib2.urlopen(request).read()

Updated in order to allow uploads on win32