anchor.diff:  { lib
   , buildPythonPackage
   , fetchPypi
  +, pythonAtLeast
   , nettools
   , glibcLocales
   , autobahn
  
positive.code: 
    checkInputs = [ mock ];
    buildInputs = [ nettools glibcLocales ];
    propagatedBuildInputs = [ autobahn cffi click hkdf pynacl spake2 tqdm ];
  
    postPatch = ''
      sed -i -e "s|'ifconfig'|'${nettools}/bin/ifconfig'|" src/wormhole/ipaddrs.py
  
negative.code: , tqdm
  , python
  , mock
  , ipaddress
  , humanize
  , pyopenssl
  , service-identity
  }:
  
  buildPythonPackage rec {
  