On Feb 5, 2010, at 2:13 PM, Gerald Britton wrote:

On Fri, Feb 5, 2010 at 12:55 PM, Charles Yeomans <char...@declaresub.com > wrote:
I am so far unable to find the information I want about the Exception class. Information like the signature of __init__ seems to be unavailable. Any
suggestions where I might find such information?


Though not documented, some silly tests indicate that it will accept
pretty much anything:

Exception(1,2,4,54)
Exception(1, 2, 4, 54)
Exception(*range(10))
Exception(0, 1, 2, 3, 4, 5, 6, 7, 8, 9)
Exception(*range(50))
Exception(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33,
34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49)
Exception('a','b','c','d','e')
Exception('a', 'b', 'c', 'd', 'e')
Exception(Exception(1))
Exception(Exception(1,),)

I had also tried such tests. If you pass a single argument msg, it is assigned to the message property, and the args property is set to (msg,). If you pass more than one argument, the tuple of arguments is assigned to the args property, and nothing is assigned to the message property. I was hoping to at least find source code that provides a definitive answer.


Charles Yeomans


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