anchor.diff:  with python2.pkgs;
   
   let
  -  matrix-angular-sdk = buildPythonPackage rec {
  -    pname = "matrix-angular-sdk";
  -    version = "0.6.8";
  -
  -    src = fetchPypi {
  -      inherit pname version;
  -      sha256 = "0gmx4y5kqqphnq3m7xk2vpzb0w2a4palicw7wfdr1q2schl9fhz2";
  -    };
  -
  -    # no checks from Pypi but as this is abandonware, there will be no
  -    # new version anyway
  -    doCheck = false;
  -  };
  -
     matrix-synapse-ldap3 = buildPythonPackage rec {
       pname = "matrix-synapse-ldap3";
       version = "0.1.3";
  
positive.code:     unpaddedbase64
    ] ++ lib.optional enableSystemd systemd;
  
    # tests fail under py3 for now, but version 0.34.0 will use py3 by default
    # https://github.com/matrix-org/synapse/issues/4036
    doCheck = true;
    checkPhase = "python -m twisted.trial test";
  
    checkInputs = [ mock setuptoolsTrial ];
  
    meta = with stdenv.lib; {
      homepage = https://matrix.org;
  
negative.code:     jinja2
      jsonschema
      lxml
      matrix-synapse-ldap3
      msgpack-python
      netaddr
  