anchor.diff: -{ stdenv, buildPythonPackage, fetchPypi, glibcLocales, mock, pytest, botocore,
  -  testfixtures, pillow, six, twisted, w3lib, lxml, queuelib, pyopenssl,
  -  service-identity, parsel, pydispatcher, cssselect, lib }:
  +{ stdenv
  +, buildPythonPackage
  +, isPy27
  +, fetchPypi
  +, glibcLocales
  +, pytest
  +, testfixtures
  +, pillow
  +, twisted
  +, cryptography
  +, w3lib
  +, lxml
  +, queuelib
  +, pyopenssl
  +, service-identity
  +, parsel
  +, pydispatcher
  +, cssselect
  +, zope_interface
  +, protego
  +, lib
  +, jmespath
  +, sybil
  +, pytest-twisted
  +, botocore
  +}:
  +
   buildPythonPackage rec {
  -  version = "1.8.0";
  +  version = "2.0.1";
     pname = "Scrapy";
   
  -  checkInputs = [ glibcLocales mock pytest botocore testfixtures pillow ];
  +  disabled = isPy27;
  +
  +  checkInputs = [
  +    glibcLocales
  +    jmespath
  +    pytest
  +    sybil
  +    testfixtures
  +    pillow
  +    pytest-twisted
  +    botocore
  +  ];
  +
     propagatedBuildInputs = [
  -    six twisted w3lib lxml cssselect queuelib pyopenssl service-identity parsel pydispatcher
  +    twisted
  +    cryptography
  +    cssselect
  +    lxml
  +    parsel
  +    pydispatcher
  +    pyopenssl
  +    queuelib
  +    service-identity
  +    w3lib
  +    zope_interface
  +    protego
     ];
   
     patches = [
  
positive.code: 
    meta = with lib; {
      description = "A fast high-level web crawling and web scraping framework, used to crawl websites and extract structured data from their pages";
      homepage = https://scrapy.org/;
      license = licenses.bsd3;
      maintainers = with maintainers; [ drewkett marsam ];
      platforms = platforms.unix;
  
negative.code:     ./permissions-fix.patch
    ];
  
    LC_ALL = "en_US.UTF-8";
  
    # Disable doctest plugin—enabled in the shipped pytest.ini—because it causes pytest to hang
    # Ignore proxy tests because requires mitmproxy
    # Ignore test_retry_dns_error because tries to resolve an invalid dns and weirdly fails with "Reactor was unclean"
    # Ignore xml encoding test on darwin because lxml can't find encodings https://bugs.launchpad.net/lxml/+bug/707396
    checkPhase = ''
      substituteInPlace pytest.ini --replace "--doctest-modules" ""
      pytest --ignore=tests/test_linkextractors_deprecated.py --ignore=tests/test_proxy_connect.py --deselect tests/test_crawl.py::CrawlTestCase::test_retry_dns_error ${lib.optionalString stdenv.isDarwin "--deselect tests/test_utils_iterators.py::LxmlXmliterTestCase::test_xmliter_encoding"}
    '';
  
    src = fetchPypi {
      inherit pname version;
      sha256 = "85581a01f4160a103ca9906ffa4e44474f4ecd1685f0934728892c58ebf111f6";
    };
  
    postInstall = ''
  