comparison with None

[Michael Hoffman]

brzrkr0 at gmail.com wrote:
> On Apr 18, 3:19 pm, Steven Howe <howe.ste... at gmail.com> wrote:
>> I've read and found that 'None' comparisons is not always a good idea.
>> Better to:
>> from types import NoneType
>>
>> x = None
>> if type( x ) == NoneType:
>>     # true
>>     < code >
>> else:
>>     # false; do something else.
>>     < more code >
>>
>> Steven Howe
> 
> Is that any better than this?
> 
> if x is None:
>     # do something
> else:
>     # do something else

To the contrary, it's not as good. "if x is None" is much clearer, and 
probably faster.
-- 
Michael Hoffman