Up to Python 2.3 this worked just fine:

    >>> import time
    >>> time.strftime("%Y-%m-%d", (2005, 6, 4) + (0,)*6)
    '2005-06-04'

Starting with 2.4 it broke:

    >>> import time
    >>> time.strftime("%Y-%m-%d", (2005, 6, 4) + (0,)*6)
    Traceback (most recent call last):
      File "<stdin>", line 1, in ?
    ValueError: day of year out of range

though if you change the unused fields to 1 it works:

    >>> time.strftime("%Y-%m-%d", (2005, 6, 4) + (1,)*6)
    '2005-06-04'

While this wasn't documented behavior, it was certainly behaviour that 
worked for a long time.  It should probably be allowed to continue 
working.

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