anchor.diff:  }:
   
   python.pkgs.buildPythonApplication rec {
  -  version = "0.10.0";
  +  version = "0.11.0";
     name = "bcc-${version}";
   
     srcs = [
  
positive.code:       owner  = "iovisor";
        repo   = "bcc";
        rev    = "v${version}";
        sha256 = "0qbqygj7ia494fbira9ajavvnxlpffx1jlzbb1vsf1wa8h3y4xn1";
        name   = "bcc";
      })
  
  
negative.code:     (fetchFromGitHub {
        owner  = "libbpf";
        repo   = "libbpf";
        rev    = "a30df5c09fb3941fc42c4570ed2545e7057bf82a";
        sha256 = "088vb9sfs1zazlqi6abb3ia1xgpmwiz5pmz6y3a6gbh0zdrgh6px";
        name   = "libbpf";
      })
    ];
  