title: How to create a Google calendar event with Python and Google calendar API
body: <p>I started with quickstart (<a href="https://developers.google.com/google-apps/calendar/quickstart/python" rel="noreferrer">https://developers.google.com/google-apps/calendar/quickstart/python</a>) and it worked good. Then i tried to insert event with  this guide (<a href="https://developers.google.com/google-apps/calendar/create-events" rel="noreferrer">https://developers.google.com/google-apps/calendar/create-events</a>). I added this code to the code from quickstart and got error. 
  How should look my code to insert event in my google calendar?</p>
  
  <p>So this is my code:</p>
  
  <pre><code>from __future__ import print_function
  import httplib2
  import os
  
  from apiclient import discovery
  import oauth2client
  from oauth2client import client
  from oauth2client import tools
  
  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'
  CLIENT_SECRET_FILE = 'client_secret.json'
  APPLICATION_NAME = 'Google Calendar API Python Quickstart'
  
  
  def get_credentials():
      """Gets valid user credentials from storage.
  
      If nothing has been stored, or if the stored credentials are invalid,
      the OAuth2 flow is completed to obtain the new credentials.
  
      Returns:
          Credentials, the obtained credential.
      """
      home_dir = os.path.expanduser('~')
      credential_dir = os.path.join(home_dir, '.credentials')
      if not os.path.exists(credential_dir):
          os.makedirs(credential_dir)
      credential_path = os.path.join(credential_dir,
                                     'calendar-python-quickstart.json')
  
      store = oauth2client.file.Storage(credential_path)
      credentials = store.get()
      if not credentials or credentials.invalid:
          flow = client.flow_from_clientsecrets(CLIENT_SECRET_FILE, SCOPES)
          flow.user_agent = APPLICATION_NAME
          if flags:
              credentials = tools.run_flow(flow, store, flags)
          else: # Needed only for compatibility with Python 2.6
              credentials = tools.run(flow, store)
          print('Storing credentials to ' + credential_path)
      return credentials
  
  def main():
      """Shows basic usage of the Google Calendar API.
  
      Creates a Google Calendar API service object and outputs a list of the next
      10 events on the user's calendar.
      """
      credentials = get_credentials()
      http = credentials.authorize(httplib2.Http())
      service = discovery.build('calendar', 'v3', http=http)
  
      # Refer to the Python quickstart on how to setup the environment:
      # https://developers.google.com/google-apps/calendar/quickstart/python
      # Change the scope to 'https://www.googleapis.com/auth/calendar' and delete any
      # stored credentials.
  
      event = {
        'summary': 'Google I/O 2015',
        'location': '800 Howard St., San Francisco, CA 94103',
        'description': 'A chance to hear more about Google\'s developer products.',
        'start': {
          'dateTime': '2016-09-28T09:00:00-07:00',
          'timeZone': 'America/Los_Angeles',
        },
        'end': {
          'dateTime': '2016-09-28T17:00:00-07:00',
          'timeZone': 'America/Los_Angeles',
        },
        'recurrence': [
          'RRULE:FREQ=DAILY;COUNT=2'
        ],
        'attendees': [
          {'email': 'lpage@example.com'},
          {'email': 'sbrin@example.com'},
        ],
        'reminders': {
          'useDefault': False,
          'overrides': [
            {'method': 'email', 'minutes': 24 * 60},
            {'method': 'popup', 'minutes': 10},
          ],
        },
      }
  
      event = service.events().insert(calendarId='primary', body=event).execute()
      print ('Event created: %s' % (event.get('htmlLink')))
  
  if __name__ == '__main__':
      main()
  </code></pre>
  
  <p>This is mistake:</p>
  
  <pre><code>Traceback (most recent call last):
    File "C:/Users/demin.va/Documents/Dropbox/Programming/Google calendar API/google calendar api.py", line 96, in &lt;module&gt;
      main()
    File "C:/Users/demin.va/Documents/Dropbox/Programming/Google calendar API/google calendar api.py", line 92, in main
      event = service.events().insert(calendarId='primary', body=event).execute()
    File "C:\Users\demin.va\AppData\Local\Programs\Python\Python35-32\lib\site-packages\oauth2client\util.py", line 137, in positional_wrapper
      return wrapped(*args, **kwargs)
    File "C:\Users\demin.va\AppData\Local\Programs\Python\Python35-32\lib\site-packages\googleapiclient\http.py", line 838, in execute
      raise HttpError(resp, content, uri=self.uri)
  googleapiclient.errors.HttpError: &lt;HttpError 403 when requesting https://www.googleapis.com/calendar/v3/calendars/primary/events?alt=json returned "Insufficient Permission"&gt;
  </code></pre>