Download a spreadsheet from Google Drive / Workspace using Python

Question

Can you produce a Python example of how to download a Google Sheets spreadsheet given its key and worksheet ID (gid)? I can't.

I've scoured versions 1, 2 and 3 of the API. I'm having no luck, I can't figure out their compilcated ATOM-like feeds API, the gdata.docs.service.DocsService._DownloadFile private method says that I'm unauthorized, and I don't want to write an entire Google Login authentication system myself. I'm about to stab myself in the face due to frustration.

I have a few spreadsheets and I want to access them like so:

username = 'mygooglelogin@gmail.com'
password = getpass.getpass()

def get_spreadsheet(key, gid=0):
    ... (help!) ...

for row in get_spreadsheet('5a3c7f7dcee4b4f'):
    cell1, cell2, cell3 = row
    ...

Please save my face.

---

Update 1: I've tried the following, but no combination of Download() or Export() seems to work. (Docs for DocsService here)

import gdata.docs.service
import getpass
import os
import tempfile
import csv

def get_csv(file_path):
  return csv.reader(file(file_path).readlines())

def get_spreadsheet(key, gid=0):
  gd_client = gdata.docs.service.DocsService()
  gd_client.email = 'xxxxxxxxx@gmail.com'
  gd_client.password = getpass.getpass()
  gd_client.ssl = False
  gd_client.source = "My Fancy Spreadsheet Downloader"
  gd_client.ProgrammaticLogin()

  file_path = tempfile.mktemp(suffix='.csv')
  uri = 'http://docs.google.com/feeds/documents/private/full/%s' % key
  try:
    entry = gd_client.GetDocumentListEntry(uri)

    # XXXX - The following dies with RequestError "Unauthorized"
    gd_client.Download(entry, file_path)

    return get_csv(file_path)
  finally:
    try:
      os.remove(file_path)
    except OSError:
      pass

Answer 1

In case anyone comes across this looking for a quick fix, here's another (currently) working solution that doesn't rely on the gdata client library:

#!/usr/bin/python

import re, urllib, urllib2

class Spreadsheet(object):
    def __init__(self, key):
        super(Spreadsheet, self).__init__()
        self.key = key

class Client(object):
    def __init__(self, email, password):
        super(Client, self).__init__()
        self.email = email
        self.password = password

    def _get_auth_token(self, email, password, source, service):
        url = "https://www.google.com/accounts/ClientLogin"
        params = {
            "Email": email, "Passwd": password,
            "service": service,
            "accountType": "HOSTED_OR_GOOGLE",
            "source": source
        }
        req = urllib2.Request(url, urllib.urlencode(params))
        return re.findall(r"Auth=(.*)", urllib2.urlopen(req).read())[0]

    def get_auth_token(self):
        source = type(self).__name__
        return self._get_auth_token(self.email, self.password, source, service="wise")

    def download(self, spreadsheet, gid=0, format="csv"):
        url_format = "https://spreadsheets.google.com/feeds/download/spreadsheets/Export?key=%s&exportFormat=%s&gid=%i"
        headers = {
            "Authorization": "GoogleLogin auth=" + self.get_auth_token(),
            "GData-Version": "3.0"
        }
        req = urllib2.Request(url_format % (spreadsheet.key, format, gid), headers=headers)
        return urllib2.urlopen(req)

if __name__ == "__main__":
    import getpass
    import csv

    email = "" # (your email here)
    password = getpass.getpass()
    spreadsheet_id = "" # (spreadsheet id here)

    # Create client and spreadsheet objects
    gs = Client(email, password)
    ss = Spreadsheet(spreadsheet_id)

    # Request a file-like object containing the spreadsheet's contents
    csv_file = gs.download(ss)

    # Parse as CSV and print the rows
    for row in csv.reader(csv_file):
        print ", ".join(row)