Prints the requirements of the current working set of packages. Requires setuptools.

requirements.py

# -*- coding:utf-8 -*-
import pkg_resources

projects = set()

def print_requirements(distribution, lvl=-1):
    lvl += 1
    dname = distribution.project_name.lower()
    if dname in projects:
        return
    
    projects.add(dname)
    print("Level %s: %2i" % (lvl, distribution.project_name))
    
    for requirement in distribution.requires():
        distro = pkg_resources.working_set.find(requirement)
        print_requirements(distro, lvl)

if __name__ == '__main__':
    for distribution in pkg_resources.working_set:
        print_requirements(distribution)

plz add some descriptions ... especially, for nobies like me :)