9.10. Boolean Empty

• empty bool() or False

• empty int() or 0

• empty float() or 0.0

• empty complex() or 0+0j or 0.0+0.0j

• empty str() or ''

• empty tuple() or ()

• empty list() or []

• empty set()

• empty frozenset()

• empty dict() or {}

• None

9.10.1. Scalar

• empty bool() or False

• empty int() or 0

• empty float() or 0.0

• empty complex() or 0+0j or 0.0+0.0j

• empty str() or ''

• None

>>> data = 0
>>>
>>> if data:
...     print('Not empty')
>>>
>>> if not data:
...     print('Empty')
Empty

>>> data = ''
>>>
>>> if data:
...     print('Not empty')
>>>
>>> if not data:
...     print('Empty')
Empty

>>> data = None
>>>
>>> if data:
...     print('Not empty')
>>>
>>> if not data:
...     print('Empty')
Empty

9.10.2. Sequence

• empty tuple() or ()

• empty list() or []

• empty set()

• empty frozenset()

>>> data = ()
>>>
>>> if data:
...     print('Not empty')
>>>
>>> if not data:
...     print('Empty')
Empty

>>> data = []
>>>
>>> if data:
...     print('Not empty')
>>>
>>> if not data:
...     print('Empty')
Empty

>>> data = set()
>>>
>>> if data:
...     print('Not empty')
>>>
>>> if not data:
...     print('Empty')
Empty

9.10.3. Mapping

• empty dict() or {}

>>> data = {}
>>>
>>> if data:
...     print('Not empty')
>>>
>>> if not data:
...     print('Empty')
Empty