anchor.diff:    postPatch = ''
       substituteInPlace nipype/interfaces/base/tests/test_core.py \
         --replace "/usr/bin/env bash" "${bash}/bin/bash"
  +
  +    rm pytest.ini
     '';
   
     propagatedBuildInputs = [
  
positive.code:     dateutil
      funcsigs
      future
      networkx
      nibabel
      numpy
  
negative.code: , dateutil
  , funcsigs
  , future
  , futures
  , mock
  , networkx
  , nibabel
  