Dreaming of new generation IDE
steve at holdenweb.com
Sat Feb 6 00:11:04 CET 2010
> "Steve Holden" <steve at holdenweb.com> wrote in message
> news:mailman.1998.1265399766.28905.python-list at python.org...
>> Arnaud Delobelle wrote:
>>> Robert Kern <robert.kern at gmail.com> writes:
>>>> I prefer Guido's formulation (which, naturally, I can't find a direct
>>>> quote for right now): if you expect that a boolean argument is only
>>>> going to take *literal* True or False, then it should be split into
>>>> two functions.
>>> So rather than three boolean arguments, would you have eight functions?
>> If there's genuinely a need for that functionality, yes.
> So you want a function such as drawtext(s, bold=true, italic=false,
> underline=true) to be split into:
The case I was discussing was where the function was required to
implement significantly different logic flow for the two different
values of the Boolean.
> Which of course is going to be fun if the bold/italic/underline values
> are not constants; instead of writing:
> you have to say:
> if b==0 and i==0 and u==0:
> elif b==1 and i==0 and u==0:
> and so on. With half-a-dozen or more booleans, this becomes completely
It's completely impractical the way you've written it anyway, since the
drawtext function shouldn't be required to know whether it's printing
bold, italic, etc. - those properties should be attributes of the font.
Steve Holden +1 571 484 6266 +1 800 494 3119
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