| .. _dict-ops: | |
| Native dict operations | |
| ====================== | |
| These ``dict`` operations have fast, optimized implementations. Other | |
| dictionary operations use generic implementations that are often slower. | |
| Construction | |
| ------------ | |
| Construct dict from keys and values: | |
| * ``{key: value, ...}`` | |
| Construct empty dict: | |
| * ``{}`` | |
| * ``dict()`` | |
| Construct dict from another object: | |
| * ``dict(d: dict)`` | |
| * ``dict(x: Iterable)`` | |
| Dict comprehensions: | |
| * ``{...: ... for ... in ...}`` | |
| * ``{...: ... for ... in ... if ...}`` | |
| Operators | |
| --------- | |
| * ``d[key]`` | |
| * ``value in d`` | |
| Statements | |
| ---------- | |
| * ``d[key] = value`` | |
| * ``for key in d:`` | |
| Methods | |
| ------- | |
| * ``d.get(key)`` | |
| * ``d.get(key, default)`` | |
| * ``d.keys()`` | |
| * ``d.values()`` | |
| * ``d.items()`` | |
| * ``d.copy()`` | |
| * ``d.clear()`` | |
| * ``d1.update(d2: dict)`` | |
| * ``d.update(x: Iterable)`` | |
| Functions | |
| --------- | |
| * ``len(d: dict)`` | |