[Python-Dev] If I check something in ...

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I have this trivial little test case for test_file.py:

    +    def testReadWhenWriting(self):
    +        self.assertRaises(IOError, self.f.read)

I would like to add it to the 2.6 and 3.0 maintenance branch and the 2.x
trunk and the py3k branch.  What is the preferred way to do that?  Do I
really have to do the same task four times or can I check it in once (or
twice) secure in the belief that someone will come along and do a monster
merge?

Thx,

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