Custom Datatype Conversions

• Schema contains a custom data type converter (note dot before color datatype value): <schema prefix=”MyPackage.datatypes”> <key name=”color” datatype=”.color” default=”blue”/> </schema>

• “MyPackage.datatypes” module contains color function: def color(value): value=value.lower() if value in ('red', 'green', 'blue'): return value raise ValueError, ( 'color must be red, green, or blue')

Notes: