private static void addRootsFromModule(Module module, Collection<String> pythonPathList) {

    // for Jython
    final CompilerModuleExtension extension = CompilerModuleExtension.getInstance(module);
    if (extension != null) {
      final VirtualFile path = extension.getCompilerOutputPath();
      if (path != null) {
        pythonPathList.add(path.getPath());
      }
      final VirtualFile pathForTests = extension.getCompilerOutputPathForTests();
      if (pathForTests != null) {
        pythonPathList.add(pathForTests.getPath());
      }
    }

    //additional paths from facets (f.e. buildout)
    final Facet<?>[] facets = FacetManager.getInstance(module).getAllFacets();
    for (Facet<?> facet : facets) {
      if (facet instanceof PythonPathContributingFacet) {
        List<String> more_paths = ((PythonPathContributingFacet)facet).getAdditionalPythonPath();
        if (more_paths != null) pythonPathList.addAll(more_paths);
      }
    }
  }
private static void addRootsFromModule(Module module, Collection<String> pythonPathList)