Started Boolean

Started Boolean

A Boolean value (bool)

1.1 Role

Conditions for determination result

1.2 Definitions

True, False usually not directly quoted, required logic operation result obtained.

1.3 How

print(type(True))
print(True)

<class 'bool'>
True

print(bool(0))
print(bool('nick'))
print(bool(1 > 2))
print(bool(1 == 1))

False
True
False
True

Note: Python values ​​of all data types comes Boolean value. So much data types only need to remember only 0, None, an empty, False Boolean value is False, the rest to True.

print(bool(0))
print(bool(None))
print(bool(''))
print(bool([]))
print(bool({}))
print(bool(False))

False
False
False
False
False
False