Out of curiosity, and because I rather prefer pip and the requirements.txt file over npm or anything Ruby has to offer, what issues do you encounter with depend

Out of curiosity, and because I rather prefer pip and the requirements.txt file over npm or anything Ruby has to offer, what issues do you encounter with dependency management in Django/Python. Granted, trying to build your own reusable modules for Django is not a great experience. In these cases the tools feels rather restrictive.