get git short hash in python

def git_short_hash():

    cmd = "git rev-parse --short HEAD"

    result = subprocess.run(cmd.split(" "), capture_output=True)

    if result.returncode == 0:
        hash = result.stdout.decode()
        if hash[-1] == "\n":
            hash = hash[:-1]
        return hash
    else:
        None