nest = Nest()
bn = os.path.basename
# Start by mirroring the two directory levels in startersdir, and name those
# directories "ethnicity" and "dietary".
nest.add('ethnicity', glob.glob(os.path.join(startersdir, '*')),
label_func=bn)
# In the `dietary` key, the anonymous function `lambda ...` chooses as values
# names of directories the current `ethnicity` directory
nest.add('dietary', lambda c: glob.glob(os.path.join(c['ethnicity'], '*')),
label_func=bn)
## Now get all of the starters.
nest.add('starter', lambda c: glob.glob(os.path.join(c['dietary'], '*')),
label_func=stripext)
## Then get the corresponding mains.
nest.add('main', lambda c: [os.path.join(mainsdir, bn(c['ethnicity']) + "_stirfry.txt")],
label_func=stripext)
## Take only the tasty wines.
nest.add('wine', glob.glob(os.path.join(winedir, '*.tasty')),
label_func=stripext)
## The wineglasses should be chosen by the wine choice, but we don't want to
## make a directory for those.
nest.add('wineglass', lambda c: [stripext(c['wine']) + ' wine glasses'],
create_dir=False)
nest.build('runs')
