Bug#856621: Missing packages

[Carlo Stemberger]

block 856621 by 856577
block 856621 by 856581
block 856621 by 856583
block 856621 by 856617
block 856621 by 818942
block 856621 by 856619
thanks

See: https://github.com/ReinProject/python-rein/blob/master/requirements.txt

Best regards,
Carlo