import python
import semmle.python.dataflow.new.TaintTracking
import semmle.python.dataflow.new.DataFlow

from DataFlow::Node nodeFrom, DataFlow::Node nodeTo
where
  TaintTracking::localTaintStep(nodeFrom, nodeTo) and
  exists(nodeFrom.getLocation().getFile().getRelativePath()) and
  exists(nodeTo.getLocation().getFile().getRelativePath())
select nodeFrom, nodeTo