anchor.diff:      disabled = !isPy27;
   
       propagatedBuildInputs = with self; [ numpy matplotlib scipy ];
  -   
  +
       meta = {
         description = "Interfaces and utilities for the NEURON simulator and analysis of neural data";
         maintainers = [ maintainers.nico202 ];
  
positive.code:     };
  
      propagatedBuildInputs = with self; [
        numpy 
        Theano
      ];
  
  
negative.code:   };
  
    bcrypt = buildPythonPackage rec {
      name = "bcrypt-${version}";
      version = "2.0.0";
  
      src = pkgs.fetchurl {
        url = "https://api.github.com/repos/pyca/bcrypt/tarball/${version}";
        name = "bcrypt-${version}.tar.gz";
        sha256 = "14i1yp4qkjklx82jl61cjjcw367lc0pkvnix3gaz451ijdcmz3x8";
      };
      buildInputs = with self; [ pycparser mock pytest py ];
      propagatedBuildInputs = with self; optional (!isPyPy) cffi;
  
      meta = {
        maintainers = with maintainers; [ domenkozar ];
  