anchor.diff:  , pytest
   , pytest_xdist
   , pytest-forked
  +, rdflib
   , scipy
   , simplejson
   , traits
  
positive.code:     simplejson
      traits
      xvfbwrapper
    ];
  
    checkInputs = [
      pybids
  
negative.code:     funcsigs
      future
      networkx
      nibabel
      numpy
      packaging
  