def word_count_reduce(key, values):
  yield "%s: %d\n" % (key, len(values))
Yield all packages, modules, and extension names in distribution
dataset/ETHPy150Open GoogleCloudPlatform/appengine-mapreduce/python/demo/main.py/word_count_reduce--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/setuptools-0.6c11/setuptools/dist.py/Distribution.iter_distribution_names