Lesson 4

Remembering that such expressions have Boolean type is useful for simplifying code and improving its readability. For example, instead of

if x > 17:
    return True
else:
    return False

use

return x > 17

whereas instead of

if x > 17:
    return True
else:
    if z > 3:
        return False
    else:
        return True

use

return x > 17 or z <= 3