jython: True and False boolean literals?

[davidmichaelkarr]

Aren't there boolean literals for "True" and "False" in Python
(jython)? I can't get "true", "True", "false", or "False" to work. I
ended up having to use "(1==1)" and "(1==0)".

 

[keirr]

Aren't there boolean literals for "True" and "False" in Python

<type 'bool'>

works for most people

All the best,

Keir

 

[keirr]

<type 'bool'>

works for most people

Ahem, who use python. For jython this looks like<type 'int'>

Keir.

 

[Kent Johnson]

Aren't there boolean literals for "True" and "False" in Python
(jython)? I can't get "true", "True", "false", or "False" to work. I
ended up having to use "(1==1)" and "(1==0)".

No, there are not. Jython implements Python 2.1 which did not have boolean literals. You
can just use 1 and 0.

Kent

 

[keirr]

No, there are not. Jython implements Python 2.1 which did not have boolean literals. You
can just use 1 and 0.

The latest jython is 2.2a1 (which does have True and False as ints)

You could declare your own True and False like this:
class Boolean:
__init__(self, value):
self.__value = value
__repr__(self):
return self.__value != 0
__int__(self):
return int(self.__value)
and so on.

then, True = Boolean(1)
and False = Boolean(0)

Cheers,
Keir

 

[Bengt Richter]

Aren't there boolean literals for "True" and "False" in Python
(jython)? I can't get "true", "True", "false", or "False" to work. I
ended up having to use "(1==1)" and "(1==0)".

You may want to upgrade to a newer version.

Regards,
Bengt Richter