anchor.diff:      version = "${versionMajor}.${versionMinor}";
   
     src = fetchurl {
  -    url = "http://launchpad.net/bzr/${versionMajor}/${version}/+download/bzr-${version}.tar.gz";
  +    url = "http://launchpad.net/bzr/${versionMajor}/${version}/+download/"
  +      + "bzr-${version}.tar.gz";
       sha256 = "1cysix5k3wa6y7jjck3ckq3abls4gvz570s0v0hxv805nwki4i8d";
     };
   
  
positive.code:   disabled = isPy3k;
  
    meta = with stdenv.lib; {
      description = "Bazaar is a next generation distributed version control system";
      homepage = http://bazaar-vcs.org/;
      license = licenses.gpl2;
      maintainers = with maintainers; [
  
negative.code:   inherit (pythonPackages)
      isPy3k;
  in
  buildPythonPackage rec {
    name = "bazaar-${version}";
      versionMajor = "2.7";
  