Roadmap
=======



Milestones
::::::::::

* Class-tree for Graph and Nodes

* Class-tree for execution contexts:

  * GraphExecutionContext
  * NodeExecutionContext
  * PluginExecutionContext

* Class-tree for ExecutionStrategies

  * NaiveStrategy
  * PoolExecutionStrategy
    * ThreadPoolExecutionStrategy
    * ProcesPoolExecutionStrategy
  * ThreadExecutionStrategy
  * ProcessExecutionStrategy

* Class-tree for bags

  * Bag
  * ErrorBag
  * InheritingBag
  *

* Co-routines: for unordered, or even ordered but long io.

* "context processors": replace initialize/finalize by a generator that yields only once


* "execute" function:

    .. code-block:: python

        def execute(graph: Graph, *, strategy: ExecutionStrategy, plugins: List[Plugin]) -> Execution:
            pass






Version 0.2
:::::::::::

* Changelog
* Migration guide
* Update documentation
* Threaded does not terminate anymore
* More tests

Configuration
:::::::::::::

* Support for position arguments (options), required options are good candidates.

Context processors
::::::::::::::::::

* Be careful with order, especially with python 3.5.
* @contextual decorator is not clean enough. Once the behavior is right, find a way to use regular inheritance, without meta.
* ValueHolder API not clean. Find a better way.