def get_version():
    lines = open(VERSION_FILE, "rt").readlines()
    version_regex = r"^__version__ = ['\"]([^'\"]*)['\"]"
    for line in lines:
        mo = re.search(version_regex, line, re.M)
        if mo:
            return mo.group(1)
    raise RuntimeError("Unable to find version in %s." % (VERSION_FILE,))