Python - Python Object classifications
Introduction
| Object type | Category | Mutable? |
|---|---|---|
| Numbers (all) | Numeric | No |
| Strings (all) | Sequence | No |
| Lists | Sequence | Yes |
| Dictionaries | Mapping | Yes |
| Tuples | Sequence | No |
| Files | Extension | N/A |
| Sets | Set | Yes |
| Frozenset | Set | No |
| bytearray | Sequence | Yes |
Rule:
- Lists, dictionaries, and tuples can hold any kind of object.
- Sets can contain any type of immutable object.
- Lists, dictionaries, and tuples can be arbitrarily nested.
- Lists, dictionaries, and sets can dynamically grow and shrink.
An example of nesting.
Demo
L = ['abc', [(1, 2), ([3], 4)], 5] print( L[1] )# w ww . j av a2 s . co m print( L[1][1] ) print( L[1][1][0] ) print( L[1][1][0][0] )
Result
