Export of the slides from my talk at PyConWEB 2017 about using Nix the purely functional package manager to get reproducible development environments.

Review on using Nix to manage development environments for Python projects.

A common need is to bring up a web server ad-hoc to serve out some files via HTTP. Most of the time I am using this trick when I want to serve a local directly quickly via HTTP without setting up anything for it.

Python has a module http.server …

The package collection nixpkgs has a nice way to configure and tweak the package set based on the configuration file ~/.nixpkgs/config.nix.

Changing something in pythonPackages was not so obvious to me though. In my case I used dulwich on Darwin. It was pulled in as a dependency of …

Overview and insights into how development environments for Python can be reliably managed based on the Nix package manager.