Enhancement: zc.recipe.testrunner should support "python" option like zc.recipe.egg

[nutjob]

I'm having to develop Jython-based applications. I'm using Buildout to manage my project. One nice feature of zc.recipe.egg is that it has a "python" option. This option identifies the name of another section in the buildout to ask for the value of an "exectuable" option that gives the path to a Python interpreter.

This works great for zc.recipe.egg; interpreter scripts it generates use the executable in the section named by the python option.

However, zc.recipe.testrunner does not support a "python" option, and so testrunner scripts it generates are stuck using the Buildout's Python interpreter. It'd be nice if a "python" option could be grafted onto zc.recipe.testrunner as well.

Thanks for reading!