SO ive created a script to add events in google calendar, with the final goal of using program AB to make the robot add them for me, the script runs pretty well and does what it is suposed, however when i try run with MRL it gives errors evrywhere, it never happened before in other scripts, does anyone have a clue?

this is the script

from __future__ import print_function
import httplib2
import os

from apiclient import discovery
import oauth2client
from oauth2client import client
from oauth2client import tools
from oauth2client import file
from apiclient.discovery import build
from httplib2 import Http

import datetime

try:
import argparse
flags = argparse.ArgumentParser(parents=[tools.argparser]).parse_args()
except ImportError:
flags = None

# If modifying these scopes, delete your previously saved credentials
# at ~/.credentials/calendar-python-quickstart.json
SCOPES = 'https://www.googleapis.com/auth/calendar'
store = file.Storage('storage.json')
creds = store.get()
if not creds or creds.invalid:
flow = client.flow_from_clientsecrets('client_secret.json', SCOPES)
creds = tools.run_flow(flow, store, flags) \
if flags else tools.run(flow, store)
CAL = build('calendar', 'v3', http=creds.authorize(Http()))

SUBJECT = 'teste azul'

GMT_OFF = '-04:00'
EVENT = {
'summary' : SUBJECT,
'start' : {'dateTime': '2016-08-12T19:00:00%s' % GMT_OFF},
'end' : {'dateTime': '2016-08-12T22:00:00%s' % GMT_OFF},
'attendees': [

],
}

e = CAL.events().insert(calendarId='primary',
sendNotifications=True, body=EVENT).execute()

print('''*** %r event added:
Start: %s
End: %s''' % (e['summary'].encode('utf-8'),
e['start']['dateTime'], e['end']['dateTime']))