8.6. Sequence Unordered¶
8.6.1. Both¶
unordered
impossible to getitem and slice
unique elements
only hashable elements
8.6.2. Frozenset¶
immutable
8.6.3. Set¶
mutable
8.6.4. Memory Footprint¶
>>> from sys import getsizeof
>>>
>>>
>>> a = {1, 2, 3}
>>> b = frozenset({1, 2, 3})
>>>
>>> getsizeof(a)
216
>>>
>>> getsizeof(b)
216