My Original Proposal

My proposal was never posted so I am putting it up now.

Proposal

* A long running issue with the subprocess module is the handling of asynchronous io (http://bugs.python.org/issue1191964, http://ivory.idyll.org/blog/feb-07/problems-with-subprocess). Several patches have been proposed and several alternative solutions suggested. The patches and the alternative solutions will be implemented initially for 2.7 and then for 3.0. The subprocess test suite will be augmented to fully test this new functionality.

* Reimplement the commands module in terms of subprocess functions (http://ivory.idyll.org/blog/mar-07/replacing-commands-with-subprocess). Since the commands module will soon deprecated, this will provide a platform independent transition to those still using the commands module.


The modifications to the subprocess module will be presented initially for code review on Rietveld. A message will be added to the above referenced issues so that all interested parties can comment.

Schedule

Start of program:

* Implement command modules using subprocess
* Extend test suite
* Post code review



Midterm evaluation:

* Address issues from code review and post patch
* Synthesize the patches from the above links
* Extend test suite
* Post code review


Final evaluation:

* Address issues from code review and post patch