Booleans in Python


No Boolean type

Conditions return 0 or 1 (for false or true, respectively)

In Python 2.2.1 and later, True and False are defined as 1, 0

All Python built-in types can be used in Boolean exprs
numbers: 0 is false anything else is true
string: empty string is false, any other is true
None: false

Boolean operators: and, or, not (short circuit, operational)