How to use the kas.__version__ function in kas

def kas(argv):
    """
        The actual main entry point of kas.
    """
    create_logger()

    parser = kas_get_argparser()
    args = parser.parse_args(argv)

    if args.debug:
        logging.getLogger().setLevel(logging.DEBUG)

    logging.info('%s %s started', os.path.basename(sys.argv[0]), __version__)

    loop = asyncio.get_event_loop()

    for sig in (signal.SIGINT, signal.SIGTERM):
        loop.add_signal_handler(sig, interruption)
    atexit.register(_atexit_handler)

    for plugin in getattr(kasplugin, 'plugins', []):
        if plugin().run(args):
            return 0

    parser.print_help()

LONG_DESCRIPTION = f.read()


setup(
    name='kas',
    version=__version__,

    description='Setup tool for bitbake based projects',
    long_description=LONG_DESCRIPTION,

    maintainer='Jan Kiszka',
    maintainer_email='jan.kiszka@siemens.com',

    url='https://github.com/siemens/kas',
    download_url=('https://github.com/siemens/'
                  'kas/archive/{version}.tar.gz'.format(version=__version__)),

    license='MIT',

    # See https://pypi.python.org/pypi?%3Aaction=list_classifiers
    classifiers=[
        # How mature is this project? Common values are
        #   3 - Alpha
        #   4 - Beta
        #   5 - Production/Stable
        'Development Status :: 4 - Beta',

        # Indicate who your project is intended for
        'Intended Audience :: Developers',
        'Topic :: Software Development :: Build Tools',

        # Pick your license as you wish (should match "license" above)

# The master toctree document.
master_doc = 'index'

# General information about the project.
project = 'kas'
copyright = 'Siemens AG, 2017-2018'
author = 'Daniel Wagner, Jan Kiszka, Claudius Heine'

# The version info for the project you're documenting, acts as replacement for
# |version| and |release|, also used in various other places throughout the
# built documents.
#
# The short X.Y version.
version = kas.__version__
# The full version, including alpha/beta/rc tags.
release = kas.__version__

# The language for content autogenerated by Sphinx. Refer to documentation
# for a list of supported languages.
#
# This is also used if you do content translation via gettext catalogs.
# Usually you set "language" from the command line for these cases.
language = None

# There are two options for replacing |today|: either, you set today to some
# non-false value, then it is used:
#
# today = ''
#
# Else, today_fmt is used as the format for a strftime call.
#
# today_fmt = '%B %d, %Y'

# source_encoding = 'utf-8-sig'

# The master toctree document.
master_doc = 'index'

# General information about the project.
project = 'kas'
copyright = 'Siemens AG, 2017-2018'
author = 'Daniel Wagner, Jan Kiszka, Claudius Heine'

# The version info for the project you're documenting, acts as replacement for
# |version| and |release|, also used in various other places throughout the
# built documents.
#
# The short X.Y version.
version = kas.__version__
# The full version, including alpha/beta/rc tags.
release = kas.__version__

# The language for content autogenerated by Sphinx. Refer to documentation
# for a list of supported languages.
#
# This is also used if you do content translation via gettext catalogs.
# Usually you set "language" from the command line for these cases.
language = None

# There are two options for replacing |today|: either, you set today to some
# non-false value, then it is used:
#
# today = ''
#
# Else, today_fmt is used as the format for a strftime call.

from os import path
from setuptools import setup, find_packages

from kas import __version__

__license__ = 'MIT'
__copyright__ = 'Copyright (c) Siemens AG, 2017-2019'

HERE = path.abspath(path.dirname(__file__))
with open(path.join(HERE, 'README.rst')) as f:
    LONG_DESCRIPTION = f.read()


setup(
    name='kas',
    version=__version__,

    description='Setup tool for bitbake based projects',
    long_description=LONG_DESCRIPTION,

    maintainer='Jan Kiszka',
    maintainer_email='jan.kiszka@siemens.com',

    url='https://github.com/siemens/kas',
    download_url=('https://github.com/siemens/'
                  'kas/archive/{version}.tar.gz'.format(version=__version__)),

    license='MIT',

    # See https://pypi.python.org/pypi?%3Aaction=list_classifiers
    classifiers=[
        # How mature is this project? Common values are