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(python2.1-lib.info)Subclassing Repr Objects

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Enter node , (file) or (file)node

Subclassing Repr Objects
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The use of dynamic dispatching by `Repr.repr1()' allows subclasses of
`Repr' to add support for additional built-in object types or to modify
the handling of types already supported.  This example shows how
special support for file objects could be added:

     import repr
     import sys
     
     class MyRepr(repr.Repr):
         def repr_file(self, obj, level):
             if obj.name in ['<stdin>', '<stdout>', '<stderr>']:
                 return obj.name
             else:
                 return `obj`
     
     aRepr = MyRepr()
     print aRepr.repr(sys.stdin)          # prints '<stdin>'