I create facebook profile and create page https://www.facebook.com/pages/Animated-GIF/872749676114274?fref=nf . 1. I was install facebook python sdk. 2. Create application and get access token for my facebook profile. 3. Now I can submit post in my facebook profile with use this code
import requests
    face_token = 'ACCESS_TOKEN'
    post = 'POST TEXT'
    post.replace(' ', '+')
    requests.post("https://graph.facebook.com/me/feed/?message=" + post + "&access_token=" + access_token)
All ok. But how I can submit post to facebook on behalf of animated gif to https://www.facebook.com/pages/Animated-GIF/872749676114274 page? Thank you