anchor.diff:  }:
   
   let
  -  version = "0.18.4";
  +  version = "0.18.5";
   in
   buildPythonPackage {
     name = "synapse-${version}";
  
positive.code: , canonicaljson
  , daemonize
  , jinja2
  , ldap3
  , matrix-angular-sdk
  , msgpack-python
  , netaddr
  , pillow
  
negative.code:     pynacl
      pysaml2
      pyyaml
      signedjson
      twisted
      ujson
  