anchor.diff:  
     propagatedBuildInputs = [
       bottle
  +    defusedxml
       future
       netifaces
       psutil
  
positive.code: { stdenv, buildPythonApplication, fetchFromGitHub, isPyPy, lib
  , future, psutil, setuptools
  # Optional dependencies:
  , bottle, pysnmp
  , hddtemp
  
negative.code: 
  buildPythonApplication rec {
    pname = "glances";
    version = "3.2.1";
    disabled = isPyPy;
  
    src = fetchFromGitHub {
      owner = "nicolargo";
      repo = "glances";
      rev = "v${version}";
      sha256 = "0m2cxmlyay2rr9hnc08s5q9xwdqy0nhzsl10by4f9ji0kiahnpl6";
    };
  
    # Some tests fail in the sandbox (they e.g. require access to /sys/class/power_supply):
  