xfbs/PiL3 — pull request #3 by weakish (2014-02-07 10:01:31+00:00)
Title: Exe2.5: use `\z`

Why not use `[[...]]`?

- Arbitrary bytes may be not human-readable, for example, bytes of an image file.
- `[[...]]` add newlines into bytes.

Refer to p. 14 Pil 3.