anchor.diff:      owner = "getpelican";
       repo = "pelican";
       rev = version;
  -    sha256 = "0p8p84fcpkr19d54dhxvldd8ijbg334wmrmkr99pnbrdl1gf64qi";
  +    sha256 = "08l8kk3c7ca1znxmgdmfgzn28dzjcziwflzq80fn9zigqj0y7fi8";
       # Remove unicode file names which leads to different checksums on HFS+
       # vs. other filesystems because of unicode normalisation.
       extraPostFetch = ''
  
positive.code:   # Exclude custom locale test, which files were removed above to fix the source checksum
    checkPhase = ''
      nosetests -s \
        --exclude=test_custom_locale_generation_works \
        --exclude=test_log_filter \
        pelican
  
negative.code: 
  buildPythonPackage rec {
    pname = "pelican";
    version = "4.5.4";
  
    disabled = isPy27;
  
  