So I am trying to print an invoice with the xmlrpc api. I used the example from the api docs (https://doc.odoo.com/6.1/developer/12_api/#python-example) but it seems not to work.

Code:

import xmlrpclib
import time
import base64

u = '****'
pwd = '****'
db = '****'

sock_common = xmlrpclib.ServerProxy('http://*********:8069/xmlrpc/common')
uid = sock_common.login(db, u, pwd)

sock_print = xmlrpclib.ServerProxy('http://*********:8069/xmlrpc/report')
report_id = sock_print.report(db, uid, pwd, 'account.invoice', [1], {'model': 'account.invoice', 'id': 1, 'report_type': 'pdf'})

time.sleep(3);

state = False
attempt = 0

while not state:
    report = sock_print.report_get(db, uid, pwd, report_id)
    state = report['state']
    if not state:
        time.sleep(1)
        attempt += 1
    if attempt > 200:
        print 'Abort, too long delay'

pdf_string = base64.decodestring(report['result'])
pdf_file = open('/tmp/file.pdf', 'w')
pdf_file.write(pdf_string);
pdf_file.close()

Log:

2014-07-22 10:25:08,644 21122 ERROR jacob openerp.service.report: Exception: Required report does not e
xist: None
Traceback (most recent call last):
  File "/home/odoo/openerp/service/report.py", line 93, in go
    result, format = openerp.report.render_report(cr, uid, ids, object, datas, context)
  File "/home/odoo/openerp/report/__init__.py", line 40, in render_report
    return registry['ir.actions.report.xml'].render_report(cr, uid, ids, name, data, context)
  File "/home/odoo/openerp/api.py", line 204, in wrapper
    return old_api(self, *args, **kwargs)
  File "/home/odoo/openerp/addons/base/ir/ir_actions.py", line 139, in render_report
    new_report = self._lookup_report(cr, name)
  File "/home/odoo/openerp/api.py", line 204, in wrapper
    return old_api(self, *args, **kwargs)
  File "/home/odoo/openerp/addons/base/ir/ir_actions.py", line 131, in _lookup_report
    raise Exception, "Required report does not exist: %s" % r
Exception: Required report does not exist: None

Does anyone know what the problem might be?