Unable to upload a file using python

Hi Team,

I have tried the below method to upload a file in ZOHO using python.

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import MultipartPostHandler, urllib2

ID ='put the accounts zoho id here '

authtoken = 'your zoho authtoken here'

fileName = "your file name here - i use the full path and filename"

opener = urllib2.build_opener(MultipartPostHandler.MultipartPostHandler)

params = {'authtoken':authtoken,'scope':'crmapi','newFormat':'1','id':ID, 'content':open(fileName,"rb")}

final_URL = " https://crm.zoho.com/crm/private/json/Accounts/uploadFile"

rslts = opener.open(final_URL, params)

print rslts.read()

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But, I am getting error " {"response":{"error":{"code":"4834","message":"Invalid Ticket Id"},"uri":"/crm/private/json/Accounts/uploadFile"}}" , I change my authtoken: 5 time Stil there is no change.

Thanks in advance.