import subprocess, os

def git_test(git_file=str, git_root=str):
    return subprocess.Popen(
        "git -C {git_root} log -1 --pretty=format:%h:%ct {git_file}".format(
            git_file=git_file,
            git_root=git_root),
        shell=True,
        universal_newlines=True,
        stdout=subprocess.PIPE,
        stderr=subprocess.PIPE,
    ).communicate()


if __name__ == "__main__":
    print(git_test(git_file="/home/jonnybravo/Projekte/Python_Skripte/jenkins/use_jenkins_api.py", git_root="/home/jonnybravo/Projekte/Python_Skripte")[0])
    #git log -1 --pretty=format:%h:%c /home/jonnybravo/Projekte/Python_Skripte/jenkins/use_jenkins_api.py