Logical AND question

[Peter Otten]

Tor Iver Wilhelmsen wrote:

> "3c273" <nospam at nospam.com> writes:
> 
>> >>> if s and t == '':
>>  print "This doesn't work!"
> 
> This is really
> 
> if (s) and (t == '')
> 
> which evaluates to false since "if (s)" returns false for the empty
> string.

The original poster probably wants

>>> if s == t == "":
...     print "this works"
...
this works
>>>

or the conventional

>>> if s == "" and t == "":
...     print "but this is more common"
...
but this is more common
>>>

Peter