anchor.diff:  
   buildPythonApplication rec {
     pname = "archivy";
  -  version = "1.7.1";
  +  version = "1.7.2";
  +  format = "setuptools";
   
     src = fetchPypi {
       inherit pname version;
  -    sha256 = "sha256-UNGl5Dl/E3+uQ4HIxzHYliHF4lqD3GYdeoL+DtqUwCo=";
  +    hash = "sha256-o5dVJDbdKgo6hMMU9mKzoouSgVWl7xSAp+Aq61VcfeU=";
     };
   
     # Relax some dependencies
  
positive.code: { lib, stdenv, python3, fetchPypi }:
  
  let
    defaultOverrides = [
  
negative.code:       --replace 'python_frontmatter == 0.5.0' 'python_frontmatter' \
        --replace 'requests ==' 'requests >=' \
        --replace 'validators ==' 'validators >=' \
        --replace 'flask-login == ' 'flask-login >= ' \
        --replace 'tinydb ==' 'tinydb >=' \
        --replace 'Flask_WTF == 0.14.3' 'Flask_WTF' \
        --replace 'Flask ==' 'Flask >='
  