# Pastebin VwCNrln0 I think nix is toying with me ``` nix-shell -p python35Packages.jellyfish --run "python3" -I nixpkgs=/Users/dom/nixpkgs Python 3.5.4 (default, Dec 22 2017, 19:58:24) [GCC 4.2.1 Compatible Clang 4.0.1 (tags/RELEASE_401/final)] on darwin Type "help", "copyright", "credits" or "license" for more information. >>> import pkg_resources >>> pkg_resources.get_distribution("jellyfish").version '0.5.6' ```