Python bindings: Make examples PEP8 compliant
Python bindings: Make bindings PEP8 compliant

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Add PEP8 style guide requirement to the CodingStyle

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>