def delval(filename, keyword, *args, **kwargs):

    if 'do_not_scale_image_data' not in kwargs:
        kwargs['do_not_scale_image_data'] = True

    hdulist, extidx = _getext(filename, 'update', *args, **kwargs)
    del hdulist[extidx].header[keyword]
    hdulist.close()
Returns a set of nodes containing the given component
dataset/ETHPy150Open spacetelescope/PyFITS/pyfits/convenience.py/delval--crossover with--dataset/ETHPy150Open OpenMDAO/OpenMDAO-Framework/openmdao.main/src/openmdao/main/depgraph.py/CollapsedGraph.internal_nodes