code: def plot_string_match(sf,regex,field,**kwargs):
      
      index,shape_records = string_match(sf,regex,field)
      plot(shape_records,**kwargs)
docs: Plot the geometry of a shapefile whose fields match a regular expression given
  
      :param sf: shapefile
      :type sf: shapefile object
      :regex: regular expression to match
      :type regex: string
      :field: field number to be matched with the regex
      :type field: integer