calendarQstrt.py

   1 #!/usr/bin/env python3
   2
   3 from __future__ import print_function
   4 import datetime
   5 import os.path
   6
   7 import tkinter as tk
   8
   9 from google.auth.transport.requests import Request
  10 from google.oauth2.credentials import Credentials
  11 from google_auth_oauthlib.flow import InstalledAppFlow
  12 from googleapiclient.discovery import build
  13 from googleapiclient.errors import HttpError
  14
  15 SCOPES=['https://www.googleapis.com/auth/calendar.readonly']
  16
  17 def main():
  18
  19     """Shows basic usage of the Google Calendar API.
  20     Prints the start and name of the next 10 events on the user's calendar
  21     """
  22     creds=None
  23     if os.path.exists('token.json'):
  24         creds=Credentials.from_authorized_user_file('token.json', SCOPES)
  25     if not creds or not creds.valid:
  26         if creds and creds.expired and creds.refresh_token:
  27             creds.refresh(Request())
  28         else:
  29             flow=InstalledAppFlow.from_client_secrets_file(
  30                 'credentials-sheets.json',SCOPES)
  31             creds=flow.run_local_server(port=0)
  32         with open('token.json','w') as token:
  33             token.write(creds.to_json())
  34     try:
  35         service=build('calendar','v3',credentials=creds)
  36
  37         # Call the Calendar API
  38         now=datetime.datetime.utcnow().isoformat()+'Z'
  39         print('Getting the upcoming 10 events')
  40         events_result=service.events().list(calendarId='primary',
  41             timeMin=now,maxResults=10,singleEvents=True,
  42             orderBy='startTime').execute()
  43         events=events_result.get('items',[])
  44
  45         if not events:
  46             print('No upcoming events found.')
  47             return
  48
  49         for event in events:
  50             start=event['start'].get('dateTime',event['start'].get('date'))
  51             description=event.get('description','')
  52             print(start, event['summary'], description)
  53
  54     except HttpError as error:
  55         print('An error occurred: %s' % error)
  56
  57 if __name__=='__main__':
  58     main()