title: Python requests: Can't send message to myself via Facebook
body: <p>I wrote simple Python script that suppose to send message from myself to myself via Facebook.
  The problems is that I can't obtain page access token.
  Permissions are set correctly.</p>
  
  <pre><code>import json
  import requests
  
  ACCESS_TOKEN = 'generated this with all possible permissions'
  
  r = requests.get('https://graph.facebook.com/me', params={'access_token': ACCESS_TOKEN})
  my_id = r.json()['id']
  print(my_id)
  
  r = requests.get('https://graph.facebook.com/me/accounts', params={'access_token': ACCESS_TOKEN})
  PAGE_ACCESS_TOKEN = r.json()#####['access_token'] cant be found cos 'data' is empty
  print(PAGE_ACCESS_TOKEN)
  
  json = {
          'recipient': {'id': my_id},
          'message': {'text': 'Hello'}
  }
  params = {
  'access_token': PAGE_ACCESS_TOKEN 
  }
  r = requests.post('https://graph.facebook.com/me/messages', json=json, params=params)
  print(r)
  </code></pre>
  
  <p>It's like I don't have access to data in /user/accounts despite that all permissions are set. I only get my user id.</p>
  
  <pre><code>11330393********
  {'data': []}
  &lt;Response [400]&gt;
  </code></pre>
  
  <p>What can be done to fix this? </p>