At 07:39 PM 7/12/2008, Kent Johnson wrote:
On Sat, Jul 12, 2008 at 6:03 PM, Dick Moores <[EMAIL PROTECTED]> wrote:
> At 01:34 PM 7/12/2008, Kent Johnson wrote:
>> In [2]: assert(False, "Asserted false")
>>
>> This is "assert condition" where the condition is a tuple with two
>> elements, hence true so there is no output.
>
> In [13]: assert(3 < 2 , "qwerty")
>
> In [14]:
>
> I don't understand that logic. Could you unpack it for me?
(False, "Asserted false") is a tuple containing two values, False and
"Asserted false".
"assert x" evaluates x as a boolean; if it evaluates to False, the
assertion is raised. A tuple with two elements will always evaluate to
True so the assertion is never raised.
But why will a tuple with two elements will always evaluate to
True?
In [2]: (3,5) == True
Out[2]: False
In [3]: ("qwerty", "asdfg") == True
Out[3]: False
In [4]:
Dick
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