self: super:

let
    pipFunction = {fetchFromGitHub}: rec {version = "9.0.3";src = fetchFromGitHub {owner = "pypa"; repo = "pip"; rev = version; hash = "sha256-ei5ru7kr6m+VJYcYMH8Fjya1eqBqkOaC4+JwDqTd46Q=";};};
in
with self;
with super;
let
  pythonInterpreter = python.pythonOnBuildForHost.interpreter;
  pythonCheckInterpreter = python.interpreter;
  pythonSitePackages = python.sitePackages;
in
rec {
    bootstrapped-pip = toPythonModule (callPackage ./python26/bootstrapped-pip.nix {});
    pip = callPackage ./python26/pip.nix {};
    argparse = callPackage ./python26/argparse.nix {};

    hookOverrides = {
        inherit pipInstallHook pythonImportsCheckHook;
    };

    pipInstallHookMine = callPackage (
        { makePythonHook, pip }:
        makePythonHook {
        name = "pip-install-hook";
        propagatedBuildInputs = [ pip ];
        substitutions = {
            inherit pythonInterpreter pythonSitePackages pip;
        };
        } ./pip-install-hook.sh
    ) { };
    pipInstallHook = pipInstallHookMine;
    pythonImportsCheckHookMine = callPackage (
        { makePythonHook }:
        makePythonHook {
        name = "python-imports-check-hook";
        substitutions = {
            inherit pythonInterpreter pythonCheckInterpreter pythonSitePackages;
            importlib = ./python26/importlib.py;
        };
        } ./python-imports-check-hook.sh
    ) { };
    pythonImportsCheckHook = pythonImportsCheckHookMine;
    importlib = callPackage ./importlib.nix {};

    setuptools = toPythonModule (callPackage ./setuptools.nix { });
    wheel = callPackage ./python26/wheel.nix { };
    #pip = pip.overridePythonAttrs (callPackage pipFunction {});

    bommels = {
        jinja2 = callPackage ./jinja2.nix { };
        lxml = callPackage ./lxml.nix { };
    };
}