33 lines
601 B
Python
33 lines
601 B
Python
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class JunkComparisonException (BaseException):
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def __str__ (self):
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return "Attempting to perform calculations involving junk values."
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class Junk:
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def __init__ (self, represents = None):
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assert(represents == None or isinstance(represents, basestring))
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self.repr = represents
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def __str__ (self):
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if self.repr:
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return '['+self.repr+']'
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return "[junk]"
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def __repr__ (self):
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return self.__str__()
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def __add__ (self, other):
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return self
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def __radd__ (self, other):
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return self
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def __sub__ (self, other):
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return self
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def __rsub__ (self, other):
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return self
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