anchor.diff:    ];
   
     buildInputs = [
  -    python3
  +    python3Packages.python
  +    python3Packages.wrapPython
       readline
       popt
       dbus
  
positive.code:   # module, which works correctly in all cases.
    PYTHON_CONFIG = "/invalid";
  
    preBuild = ''
      export MAKEFLAGS="-j $NIX_BUILD_CORES"
    '';
  
negative.code: 
      # Samba does its own shebang patching, but uses build Python
      find "$out/bin" -type f -executable -exec \
        sed -i '1 s^#!${python3Packages.python.pythonForBuild}/bin/python.*^#!${python3Packages.python.interpreter}^' {} \;
  
      # Fix PYTHONPATH for some tools
      wrapPythonPrograms
    '';
  
    passthru = {
  