Argument of the bool function

Lie Ryan lie.1296 at gmail.com
Sat Apr 9 07:45:38 CEST 2011


On 04/09/11 08:59, candide wrote:
> Le 09/04/2011 00:03, Ethan Furman a écrit :
> 
>>  > bool([x])
>>  > Convert a value to a Boolean, using the standard truth testing
>>  > procedure.
>>  >
>>
>> As you can see, the parameter name is 'x'.
> 
> 
> OK, your response is clarifying my point ;)
> 
> 
> I didn't realize that in the bool([x]) syntax, identifier x refers to a
> "genuine" argument [I was considering x as referring to a "generic"
> object having a boolean value].
> 
> 
> Nevertheless, compare with the definition the doc provides for the
> builtin function dir():
> 
> dir([object])
> [definition omited, just observe the declaration syntax]
> 
> Now, lets make a try
> 
>>>> dir(object="Explicit is better than implicit")
> Traceback (most recent call last):
>   File "<stdin>", line 1, in <module>
> TypeError: dir() takes no keyword arguments
>>>>
> 
> Not very meaningful, isn't it ?

The error says it unambiguously, dir() does not take *keyword*
arguments; instead dir() takes *positional* argument:

    dir("Explicit is better than implicit")



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