This removes the assertions that checked plugin devs didn't do anything
overly bad in favour of using mypy to ensure appropriate type-checking.
It also moves the ProgressCallback typing information to constants in
order to avoid circular imports (since constants doesn't import
anything).
This includes:
* Better ways of checking empty lists
* Not shadowing builtin functions like filter
* Preventing invalid slash warnings by marking strings as regexps
* Removing unnecessary brackets
* Lowercase variable names
* Adding/updating parameters in docstrings
* Removing unused code (lines not chunks)
* Change in not a member tests
* Changing some methods to static
* Shorting range membership checks
* Missing parameters
* Make some exception handlers more specific
* Don't define a lambda to a variable
* A few more instance checks to help type checkers
Relented on the strict import of direct objects/classes for the typing
module only. Typing module components can be directly imported because
it makes the code really painful to read and write otherwise.
This is still in-line with the python style guide adopted from Google at
http://google.github.io/styleguide/pyguide.html section 2.2.
The hash/size determination takes time, so make the hash generated on
use (so far, only on dedupe) and cache it, since it shouldn't change.
We also cache the Module construction, so that if it's done in a loop
(like pslist), it won't keep recaculating for the same module.
Note: also remove interfaces_configuration where ever possible
(this is not possible in the interfaces directory itself
because it would cause an import loop).
They weren't consistent and they show just remind me how slowly
I've been getting vol 3 written! 5:S
There's git commits to track all of that stuff if we need it.