AttrDict (internal)

Copyright (c) 2013 Brendan Curran-Johnson

class AttrDict(*args, **kwargs) → None

Bases: dict[str, V], MutableAttr[V]

A dict that implements MutableAttr.

class MutableAttr

Bases: Attr[str, V], MutableMapping[str, V], ABC

A mixin mapping class that allows for attribute-style access of values.

class Attr

Bases: Mapping[K, V], ABC

A mixin class for a mapping that allows for attribute-style access of values.

A key may be used as an attribute if:

  • It is a string

  • It matches ^[A-Za-z][A-Za-z0-9_]*$ (i.e., a public attribute)

  • The key doesn’t overlap with any class attributes (for Attr, those would be get, items, keys, values, mro, and register).

If a value which is accessed as an attribute is a Sequence-type (and is not a string/bytes), it will be converted to a _sequence_type with any mappings within it converted to Attrs.

NOTE:

This means that if _sequence_type is not None, then a sequence accessed as an attribute will be a different object than if accessed as an attribute than if it is accessed as an item.