99 Bottles of Mate Exercise

Assignment:

• Implement the verse(n) method in Song (song/song.py) which should return the respective single verse from the whole song.
• If all verses are returned correctly, Song#song() returns the whole Song.
• Tests are already there.
• You can use config.py to switch off test skipping/xfailing.

Change:

• Crates with 20 bottles each should be handled differently, as in test/lyrics/whole_song_crates.py

This exercise is inspired by the

• 99 bottles of beer kata
• Sandi Metz' Book 99 Bottles of OOP - 2nd Edition