anchor.diff:  
   buildPythonPackage rec {
     pname = "curio";
  -  version = "1.4";
  +  version = "1.5";
  +  disabled = !isPy3k;
   
     src = fetchPypi {
       inherit pname version;
  -    sha256 = "57edce81c837f3c2cf42fbb346dee26e537d1659e6605269fb13bd179e068744";
  +    sha256 = "sha256-rwghLlkLt9qOTMOcQgEnEUlNwg1iLxYhVbopbMLjvBA=";
     };
   
  -  patches = [
  -    # Fix the flaky test due to slow moving time on Apple Silicon chips.
  -    # Remove when https://github.com/dabeaz/curio/pull/339 is in the next release.
  -    (fetchpatch {
  -      url = "https://github.com/dabeaz/curio/commit/132376724bbfaa0a52d3d63d0791aa4ac1eb6f5f.patch";
  -      sha256 = "sha256-AxO0xRcR9l9/NKEJFwyZIoYcyZxpqOhpdNaeaYokVb4=";
  -    })
  -    # Same as above
  -    (fetchpatch {
  -      url = "https://github.com/dabeaz/curio/commit/8ac2f12a2cdacbc750b01fc7459cee8879bc1ee3.patch";
  -      sha256 = "sha256-2Si3fuDLrI09QuzJd1TrE0QY02G9e9m+1eHFTB/MrWU=";
  -    })
  +  checkInputs = [
  +    pytestCheckHook
  +    sphinx
     ];
  -
  -  disabled = !isPy3k;
  -
  -  checkInputs = [ pytestCheckHook sphinx ];
   
     __darwinAllowLocalNetworking = true;
   
  
positive.code:      "test_unix_ssl_server" # socket bind error on hydra when built with other packages
     ];
  
    meta = with lib; {
      homepage = "https://github.com/dabeaz/curio";
      description = "Library for performing concurrent I/O with coroutines in Python 3";
      license = licenses.bsd3;
      maintainers = [ maintainers.marsam ];
    };
  
negative.code: { lib
  , buildPythonPackage
  , fetchPypi
  , isPy3k
  , pytestCheckHook
  , sphinx
  