Fabric show print after executing commands

Question

I have a post-receive hook on my git bare repo that excute this fabfile.py:

def deploy():
    print(cyan('Pulling changes to local server'))

    with cd('/var/www')
        local('git pull')

It executes fine, but it shows the output for the local command before the print, like this:

remote: From /media/projetos/repositorios/test
remote:    b057a4b..02d85b3  master     -> origin/master
remote: Updating b057a4b..02d85b3
remote: Fast-forward
remote:  .../test/template/catalog/product/list.phtml     | 98 +++++++++++-----------
remote:  1 file changed, 47 insertions(+), 51 deletions(-)
remote: Pulling changes to local server

If i just ssh on the server and run fab deploy it works normal.

Answer 1

Add a sys.stdout.flush() call after printing, so that even if output is fully buffered (as it is on a pipe, which is the case when running under a git hook), it is sent to the output stream at that point, before running another command.