MRAB wrote:
Gary Herron wrote:
goldtech wrote:
Could you explain or link me to an explanation of this? Been using
Python for a while but not sure I understand what's happening below.
Thanks.
ss=1 and "fffff"
ss
'fffff'
ss=0 and "fffff"
ss
0
Python's Boolean operators don't turn arbitrary values into True and
False values. If you use it in any conditional, you'll get the same
result as if it did, but it is occasionally it's nice to get the
actual values used in the "and" instead of having the value distilled
down to a True/False.
>From the Python manual:
These are the Boolean operations, ordered by ascending priority:
Operation Result Notes
|x or y| if x is false, then y, else x (1)
|x and y| if x is false, then x, else y (1)
|not x| if x is false, then |True|, else |False| (2)
The Pythonic table would be:
Operation Result
|x or y| x if x else y
|x and y| y if x else x
|not x| False if x else False
:-)
That last should be
|not x| False if x else True
~Ethan~
--
http://mail.python.org/mailman/listinfo/python-list
