| .. _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)`` |
