text: # coding=utf-8
  """Differential photometry as in Honeycutt 1992PASP..104..435H
  
  
  See Also
  --------
  dphot         : function calcualting differential photometry and light curves
  dphot_filters : convenience function calling dphot for multiple filters
   """
  from .dphot import *
  from .phot_error import err_poly_fit, PhotError
  
  