Peter Otten wrote:
> bdb112 wrote:
>
>> Your explanation of Boolean ops on lists was clear.
>> It leads to some intriguing results:
>>
>> bool([False])
>> --> True
>>
>> I wonder if python 3 changes any of this?
>
> No. Tests like
>
> if items:
> ...
>
> to verify that items is a non-empty list are a widespread idiom in Python.
> They rely on the behaviour you observe.
Are they widespread? I haven't noticed, yet.
I prefer to write it explicitly:
if len(lst) > 0:
...
if item is None:
...
etc.
-- Gerhard
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