How to realize cmp in python3
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Python3 cmp implementation
Python3 removes the cmp () function, but provides six rich comparison operators, as detailed here
Import operator # first imports the operator module operator.gt (1Magne2) # which means greater than (greater than) operator.ge (1Magne2) # means greater and equal (greater than or equal to) operator.eq (1Magne2) # means equal (equal to) operator.le (1Magne2) # means less and equal (less than or equal to) operator.lt (1Magne2) # means less than (less than) PY3__cmp _ _ mixin class import sysPY3 = sys.version_info [0] > = 3if PY3: def cmp (a B): return (a > b)-(a
< b) # mixin class for Python3 supporting __cmp__ class PY3__cmp__: def __eq__(self, other): return self.__cmp__(other) == 0 def __ne__(self, other): return self.__cmp__(other) != 0 def __gt__(self, other): return self.__cmp__(other) >0 def _ lt__ (self, other): return self.__cmp__ (other)
< 0 def __ge__(self, other): return self.__cmp__(other) >= 0 def _ le__ (self, other): return self.__cmp__ (other)
