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)