anchor.diff:      # root and readonly. As a consequence scrapy can't edit the
       # project templates.
       ./permissions-fix.patch
  -
  -    # Fix configparser import for python2. See: https://github.com/scrapy/scrapy/pull/3887
  -    (fetchpatch {
  -      url = "https://github.com/scrapy/scrapy/commit/21345dc9ec60dcc1cd2e5c0eace5788aa502ce23.patch";
  -      sha256 = "09834rcjyggvyj6zignvfga2xbqkknygly5p4a96k2mvz0xn3v6z";
  -    })
     ];
   
     LC_ALL="en_US.UTF-8";
  
positive.code: 
    src = fetchPypi {
      inherit pname version;
      sha256 = "da8987d199092c3bb33d4d1d021507cd933aa67f5177e2d36f31343e8a6bd7f1";
    };
  
    postInstall = ''
  
negative.code: { stdenv, buildPythonPackage, fetchPypi, glibcLocales, mock, pytest, botocore,
    testfixtures, pillow, six, twisted, w3lib, lxml, queuelib, pyopenssl,
    service-identity, parsel, pydispatcher, cssselect, lib }:
  buildPythonPackage rec {
    version = "1.7.2";
    pname = "Scrapy";
  
    checkInputs = [ glibcLocales mock pytest botocore testfixtures pillow ];
  