I ended up doing some bizarre contortions to get it to pass pep8 as the strings are lines that exceed the 79 char limit. Is there a way to do this more elegantly? Essentially each line of the test vector looks like this:

```
CAMELLIA-128-CFB:2B7E151628AED2A6ABF7158809CF4F3C:000102030405060708090A0B0C0D0E0F:6BC1BEE22E409F96E93D7E117393172A:14F7646187817EB586599146B82BD719:1
```