Python "and" behavior

[goldtech]

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.

 

[Mensanator]

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.





0

Does this help?
False

 

[MRAB]

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.



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

 

[ryles]

Could you explain or link me to an explanation of this?

http://docs.python.org/tutorial/datastructures.html#more-on-conditions

Give the whole tutorial a good read.

 

[Ethan Furman]

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~