Python: override __init__ args in __new__
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            by EoghanM
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        Published on 2010-03-18T07:23:03Z
        Indexed on 
            2010/03/18
            7:41 UTC
        
        
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I have a __new__ method as follows:
class MyClass(object):
   def __new__(cls, *args):
      new_args = []
      args.sort()
      prev = args.pop(0)
      while args:
         next = args.pop(0)
         if prev.compare(next):
            prev = prev.combine(next)
         else:
            new_args.append(prev)
            prev = next
         if some_check(prev):
            return SomeOtherClass()
      new_args.append(prev)
      return super(MyClass, cls).__new__(cls, new_args)
   def __init__(self, *args):
       ...
However, this fails with a deprecation warning:
DeprecationWarning: object.__new__() takes no parameters
SomeOtherClass can optionally get created as the args are processed, that's why they are being processed in __new__ and not in __init__
What is the best way to pass new_args to __init__?
Otherwise, I'll have to duplicate the processing of args in __init__ (without some_check)
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