anchor.diff:  
   buildPythonPackage rec {
     pname = "jupyterhub";
  -  version = "1.0.0";
  +  version = "1.1.0";
     disabled = pythonOlder "3.5";
   
     src = fetchPypi {
       inherit pname version;
  -    sha256 = "0zx6gw9yhgki05j21p6x1x2sf5a2mg2c2mx0ii8rl6q4b98ilm1k";
  +    sha256 = "1mqknz0rxqzx4nc57vscvfh2d4znzlzpy83ancqxdaq3b8i70al5";
     };
   
     # Most of this only applies when building from source (e.g. js/css assets are
  
positive.code: , nodePackages
  , oauthlib
  , certipy
  }:
  
  let
  
negative.code:   propagatedBuildInputs = [
      alembic ipython jinja2 pamela python-oauth2 requests sqlalchemy tornado
      traitlets prometheus_client async_generator notebook certipy oauthlib
      jupyter-telemetry
    ];
  
    # Disable tests because they take an excessive amount of time to complete.
  