Bugs item #1684943, was opened at 2007-03-20 23:50
Message generated for change (Comment added) made by nnorwitz
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>Category: Python Interpreter Core
Group: Python 2.4
>Status: Closed
>Resolution: Duplicate
Priority: 5
Private: No
Submitted By: Jørgen Frøjk Kjærsgaard (jfroejk)
>Assigned to: Neal Norwitz (nnorwitz)
Summary: Keyword arguments to __init__() of a subclass of set

Initial Comment:
Passing a keyword argument to a subclass of the built-in class "set" causes a 
TypeError in Python 2.4.2 and newer but not in 2.4.0. Example:

class Test(set):
    def __init__(self, a=0):
        self.add(a)

t = Test(a=0)

In Python 2.4.0 it works as expected whereas in 2.4.2 and 2.4.4, it yields:

Traceback (most recent call last):
  File "<stdin>", line 1, in ?
TypeError: set() does not take keyword arguments

I don't pass a keyword argument to set.__init__() but to its subclass!


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>Comment By: Neal Norwitz (nnorwitz)
Date: 2007-03-20 23:59

Message:
Logged In: YES 
user_id=33168
Originator: NO

2.4 is no longer supported.  This has been fixed in 2.5.  I don't have the
original bug report #.  You can find the fix in SVN if you would like to
build your own patched version.

----------------------------------------------------------------------

You can respond by visiting: 
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