… not in y' whereas 'not x in y' was being used.

…earning, and Fixed all errors/warning for PEP8

… since they are the once only producing the object', object specific methods can start from 'It is ...'

Fixes #53.

…aram

A few small adjustments.

…n__"

…unction from future for chaining_method.py

…tment to UI and Business logic for injecting dependencies"

This reverts commit 69b507b.

… tool

* pr-139:
  change: refactor (work -> talk)
  change: refactoring self->cls

…version specific import of StringIO (breaks on 2.x with io.StringIO)

ENH+BF: fix up of some tests/docs to pass with python2.7, testing on travis, consistent shebanging,

add: pyreverse class diagrams for hsm.py and test_hsm.py

… as in bottle, django, pip and pyramid

lazy evaluation: use descriptors

correct lazy_evaluation output