deploy to heroku

(uleague) ➜  pickapp git:(master) ✗ heroku create fuupbol --buildpack heroku/python
Creating fuupbol... done, stack is cedar-14
Setting buildpack to heroku/python... done
https://fuupbol.herokuapp.com/ | https://git.heroku.com/fuupbol.git
(uleague) ➜  pickapp git:(master) ✗ git remote -v
heroku	https://git.heroku.com/fuupbol.git (fetch)
heroku	https://git.heroku.com/fuupbol.git (push)
origin	https://[email protected]/bgarcial/pickapp.git (fetch)
origin	https://[email protected]/bgarcial/pickapp.git (push)
(uleague) ➜  pickapp git:(master) ✗ git push heroku master
Counting objects: 195, done.
Delta compression using up to 8 threads.
Compressing objects: 100% (92/92), done.
Writing objects: 100% (195/195), 516.34 KiB | 0 bytes/s, done.
Total 195 (delta 93), reused 195 (delta 93)
remote: Compressing source files... done.
remote: Building source:
remote:
remote: -----> Using set buildpack heroku/python
remote:
remote:  !     Push rejected, failed to detect set buildpack heroku/python
remote: More info: https://devcenter.heroku.com/articles/buildpacks#detection-failure
remote:
remote: Verifying deploy....
remote:
remote: !	Push rejected to fuupbol.
remote:
To https://git.heroku.com/fuupbol.git
 ! [remote rejected] master -> master (pre-receive hook declined)
error: failed to push some refs to 'https://git.heroku.com/fuupbol.git'
(uleague) ➜  pickapp git:(master) ✗