# Copyright (c) 2007, Enthought, Inc. # License: BSD Style. # compound.py -- Example of multiple criteria in a trait definition #--[Imports]-------------------------------------------------------------------- from traits.api import HasTraits, Range, Trait, TraitError #--[Code]----------------------------------------------------------------------- # Shows the definition of a compound trait. class Die ( HasTraits ): # Define a compound trait definition: value = Trait( 1, Range( 1, 6 ), 'one', 'two', 'three', 'four', 'five', 'six' ) #--[Example*]------------------------------------------------------------------- # Create a sample Die: die = Die() # Try out some sample valid values: die.value = 3 die.value = 'three' die.value = 5 die.value = 'five' # Now try out some invalid values: try: die.value = 0 except TraitError, excp: print excp try: die.value = 'zero' except TraitError, excp: print excp