I added a couple of methods / functions to my pipe_controller Python module, the Python tool to experiment with pipelined functions within a program.
With these additions, it is now possible to swap the components of a pipe_controller 'pipe' programmatically, at runtime (*), and then run the pipe again (all within the same program), with differing results (from before and after the swap). (*) Instead of having to edit the source code to change the order in which the functions in the pipe are called, that change of order can be done programmatically, via a swap_processors() method. Blog post about it: http://jugad2.blogspot.in/2012/10/swapping-pipe-components-at-runtime.html The post includes snippets of the added methods / functions, and a sample run of a test program that demonstrates the new component-swapping feature. The latest code with the above changes is on Bitbucket at: https://bitbucket.org/vasudevram/pipe_controller - Vasudev Ram www.dancingbison.com jugad2.blogspot.com -- http://mail.python.org/mailman/listinfo/python-list
