example of z3c.recipe.template-like proof of concept

=====buildout.cfg======
[buildout]
directory = hello_world.py
=======================



=====hello_world.py====
print 'hello world'
=======================



======runner.cfg=======
<runner>
    python ${buildout:directory}
</runner>
=======================



=======runner.py=======
from ConfigParser import ConfigParser
import re

conf = open('runner.conf')
new_conf = []

parser = ConfigParser()
parser.read('buildout.cfg')


for line in conf.readlines():
    new_line = line
    for section, value in re.findall(r'\${(\w+):(\w+)}', line):
        new_line = line.replace('${%s:%s}' % (section, value),
                                parser.get(section, value))
    new_conf.append(new_line)

print ''.join(new_conf)
===============================