How can I call 'git pull' from within Python?

Question

Using the github webhooks, I would like to be able to pull any changes to a remote development server. At the moment, when in the appropriate directory, git pull gets any changes that need to be made. However, I can't figure out how to call that function from within Python. I have tried the following:

import subprocess process = subprocess.Popen("git pull", stdout=subprocess.PIPE) output = process.communicate()[0] 

But this results in the following error

Traceback (most recent call last):   File "<stdin>", line 1, in <module>   File "/usr/lib/python2.7/subprocess.py", line 679, in __init__     errread, errwrite)   File "/usr/lib/python2.7/subprocess.py", line 1249, in _execute_child     raise child_exception OSError: [Errno 2] No such file or directory 

Is there a way that I can call this bash command from within Python?

Answer 1

Have you considered using GitPython? It's designed to handle all this nonsense for you.

import git   g = git.cmd.Git(git_dir) g.pull() 

https://github.com/gitpython-developers/GitPython