[Python-Dev] For review: PEP 285: Adding a bool type
Samuele Pedroni
pedroni@inf.ethz.ch
Sat, 9 Mar 2002 22:01:36 +0100
From: M.-A. Lemburg <mal@lemburg.com>
>> +1 on making bool an abstract subtype of integers
> and having Py_True and Py_False as only instances
>> -1 on overriding interfaces other than informational
> ones such as __repr__
>
So you mean just:
class truth(int): # other names?, should not be subclassable
def __new__(cls,val): # ??
if val:
return true
else:
return false
def __repr__(self):
if self:
return 'true'
else:
return 'false'
true = int.__new__(truth,1) # also Py_True
false = int.__new__(truth,0) # also Py_False