version.py

def get_version():
    import os
    import subprocess
    try:
        try:
            version = subprocess.check_output([
                'git', 'describe', '--tags'
            ]).strip()
        except subprocess.CalledProcessError:
            version = __import__('pkg_resources') \
                .get_distribution(__name__).version
    except Exception, e:
        version = 'unknown'
    return version