Python logical operator AND

[buran]

from the docs:

The expression x and y first evaluates x; if x is false, its value is returned; otherwise, y is evaluated and the resulting value is returned.

also here:

Boolean Operations — and, or, not

These are the Boolean operations, ordered by ascending priority:

• x or y: if x is false, then y, else x (1)
  
• x and y: if x is false, then x, else y (2)
  
• not x: if x is false, then True, else False (3)
  

Notes:

1. This is a short-circuit operator, so it only evaluates the second argument if the first one is false.
   
2. This is a short-circuit operator, so it only evaluates the second argument if the first one is true.
   
3. not has a lower priority than non-Boolean operators, so not a == b is interpreted as not (a == b), and a == not b is a syntax error.