Why "True is not False is False"?

Asked Oct 29 '17 at 08:46

Active Oct 29 '17 at 08:50

Viewed 247 times

If I evaluate the expression

True is not False is False

I get True, but I don't understand why. "True is not False" is True, and "True is False" is False, so why do I get True? Indeed, if I use brackets

(True is not False) is False

I get False.

asked Oct 29 '17 at 08:46

Stefano

Operator chaining... – Willem Van Onsem Oct 29 '17 at 08:47
4

`True is not False is False` becomes `(True is not False) and (False is False)` which is `True`. – cs95 Oct 29 '17 at 08:48
The dupe covers the same concept. Let me know if you have any further questions. – cs95 Oct 29 '17 at 08:49
Also https://stackoverflow.com/questions/25103085/chaining-is-operators – leekaiinthesky Oct 29 '17 at 08:50
I understand, thanks for the answers! The example `a is b is None` with `a=None` and `b=None` is clear, but my example is weird to understand at first look. – Stefano Oct 29 '17 at 08:59

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