git fast forward

Monas-MacBook-Pro:PythonCodes mona$ git remote add origin git@github.com:lamiastella/Python_Playground
Monas-MacBook-Pro:PythonCodes mona$ git push -u origin master
To git@github.com:lamiastella/Python_Playground
 ! [rejected]        master -> master (fetch first)
error: failed to push some refs to 'git@github.com:lamiastella/Python_Playground'
hint: Updates were rejected because the remote contains work that you do
hint: not have locally. This is usually caused by another repository pushing
hint: to the same ref. You may want to first integrate the remote changes
hint: (e.g., 'git pull ...') before pushing again.
hint: See the 'Note about fast-forwards' in 'git push --help' for details.
Monas-MacBook-Pro:PythonCodes mona$ git pull
warning: no common commits
remote: Counting objects: 3, done.
remote: Compressing objects: 100% (2/2), done.
remote: Total 3 (delta 0), reused 0 (delta 0), pack-reused 0
Unpacking objects: 100% (3/3), done.
From github.com:lamiastella/Python_Playground
 * [new branch]      master     -> origin/master
There is no tracking information for the current branch.
Please specify which branch you want to merge with.
See git-pull(1) for details

    git pull <remote> <branch>

If you wish to set tracking information for this branch you can do so with:

    git branch --set-upstream-to=origin/<branch> master

Monas-MacBook-Pro:PythonCodes mona$ git push -u origin master
To git@github.com:lamiastella/Python_Playground
 ! [rejected]        master -> master (non-fast-forward)
error: failed to push some refs to 'git@github.com:lamiastella/Python_Playground'
hint: Updates were rejected because the tip of your current branch is behind
hint: its remote counterpart. Integrate the remote changes (e.g.
hint: 'git pull ...') before pushing again.
hint: See the 'Note about fast-forwards' in 'git push --help' for details.
Monas-MacBook-Pro:PythonCodes mona$