Python package development shell example in Nix

app.py

from latex import build_pdf

min_latex = (r"\documentclass{article}"
             r"\begin{document}"
             r"Hello, world!"
             r"\end{document}")

# this builds a pdf-file inside a temporary directory
pdf = build_pdf(min_latex)

# look at the first few bytes of the header
print bytes(pdf)[:10]

buildiout.cfg

# Usage: nix-shell buildout.nix --run buildout-nix
[buildout]
parts = app
develop = .

[app]
recipe = collective.recipe.nix
eggs = app
build-inputs = texLive
outputs = app.nix

buildout.nix

with import <nixpkgs> {};
stdenv.mkDerivation {
  name = "buildout";
  buildInputs = [
    pythonPackages.zc_buildout_nix
  ];
  shellHook = ''
    export SSL_CERT_FILE=${cacert}/etc/ssl/certs/ca-bundle.crt
  '';
}

default.nix

with import <nixpkgs> {};
let dependencies = rec {
  _latex = buildPythonPackage {
    name = "latex-0.6.1";
    src = fetchurl {
      url = "https://pypi.python.org/packages/source/l/latex/latex-0.6.1.tar.gz";
      md5 = "aeab224095be52107b7b32f08a980c5a";
    };
    propagatedBuildInputs = [
      _tempdir
      _data
      _future
      _shutilwhich
    ];
    doCheck = false;
  };
  _shutilwhich = buildPythonPackage {
    name = "shutilwhich-1.1.0";
    src = fetchurl {
      url = "https://pypi.python.org/packages/source/s/shutilwhich/shutilwhich-1.1.0.tar.gz";
      md5 = "915947c5cdae7afd748ac715ee547adb";
    };
    doCheck = false;
  };
  _future = buildPythonPackage {
    name = "future-0.15.2";
    src = fetchurl {
      url = "https://pypi.python.org/packages/source/f/future/future-0.15.2.tar.gz";
      md5 = "a68eb3c90b3b76714c5ceb8c09ea3a06";
    };
    doCheck = false;
  };
  _data = buildPythonPackage {
    name = "data-0.4";
    src = fetchurl {
      url = "https://pypi.python.org/packages/source/d/data/data-0.4.tar.gz";
      md5 = "e8b34bc3806cae346a7c54aad77b4fef";
    };
    propagatedBuildInputs = [
      _six
      _decorator
      _funcsigs
    ];
    doCheck = false;
  };
  _tempdir = buildPythonPackage {
    name = "tempdir-0.6";
    src = fetchurl {
      url = "https://pypi.python.org/packages/source/t/tempdir/tempdir-0.6.tar.gz";
      md5 = "93890c11a7101ae55eebf77b86c75a05";
    };
    doCheck = false;
  };
  _funcsigs = buildPythonPackage {
    name = "funcsigs-0.4";
    src = fetchurl {
      url = "https://pypi.python.org/packages/source/f/funcsigs/funcsigs-0.4.tar.gz";
      md5 = "fb1d031f284233e09701f6db1281c2a5";
    };
    doCheck = false;
  };
  _decorator = buildPythonPackage {
    name = "decorator-4.0.4";
    src = fetchurl {
      url = "https://pypi.python.org/packages/source/d/decorator/decorator-4.0.4.tar.gz";
      md5 = "dd3a0669e1e6f09699eefa2c7fbd9756";
    };
    doCheck = false;
  };
  _six = buildPythonPackage {
    name = "six-1.9.0";
    src = fetchurl {
      url = "https://pypi.python.org/packages/source/s/six/six-1.9.0.tar.gz";
      md5 = "476881ef4012262dfc8adc645ee786c4";
    };
    doCheck = false;
  };
};
in with dependencies;
stdenv.mkDerivation {
  name = "env";
  buildInputs = [
    (python.buildEnv.override {
       extraLibs = [ _latex ];
    })
    (texlive.combine {
      inherit (texlive) scheme-basic;
    })
  ];
  shellHook = ''
    export PYTHONPATH=`pwd`;
  '';
}

setup.py

from setuptools import setup
setup(name='app', version='1.0.0', py_modules=['app'], install_requires=['latex'])