def get_git_changeset():
    """Returns a numeric identifier of the latest git changeset.

    The result is the UTC timestamp of the changeset in YYYYMMDDHHMMSS format.
    This value isn't guaranteed to be unique, but collisions are very unlikely,
    so it's sufficient for generating the development version numbers.
    """
    import datetime
    import os
    import subprocess

    repo_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
    git_log = subprocess.Popen('git log --pretty=format:%ct --quiet -1 HEAD',
            stdout=subprocess.PIPE, stderr=subprocess.PIPE,
            shell=True, cwd=repo_dir, universal_newlines=True)
    timestamp = git_log.communicate()[0]
    try:
        timestamp = datetime.datetime.utcfromtimestamp(int(timestamp))
    except __HOLE__:
        return None
    return timestamp.strftime('%Y%m%d%H%M%S')
dataset/ETHPy150Open pybee/duvet/duvet/__init__.py/get_git_changeset