python-barcode is yet another clone of the PyPI barcode library, but
which is still developped compared to viivakoodi.
Signed-off-by: Romain Porte <microjoe@microjoe.org>
Python 2.7 EOL is arriving on 2020-01-01: https://pythonclock.org/
This will allow us to use Python 3 only libraries, like python-barcode,
which can maintain a reduced, simpler codebase, due to only one version
to support.
Closes#371.
Signed-off-by: Romain Porte <microjoe@microjoe.org>
Patrick Kanzler