getting error as list index out of range while connecting to sharepoint using python

Question

i am getting error in below code as list index out of range

from shareplum import Site
from shareplum import Office365
from shareplum.site import Version
authcookie = Office365('http://XXXXX.sharepoint.com/', username='XXXXXXXXXX', password='*********').GetCookies()
site = Site('http://XXXXX.sharepoint.com/sites/Trial',  version=Version.v365, authcookie=authcookie)
folder = site.Folder('Shared Documents/General')
folder.upload_file('Hello', 'new.txt') 

error-

data = envelope[0][0][0]
    File "src\lxml\etree.pyx", line 1161, in lxml.etree._Element.__getitem__
IndexError: list index out of range

and actually i dont have file - "src\lxml\etree.pyx