corelay.tracker

Includes MetaTracker to track definition order of class attributes.

Classes

`MetaTracker`	Meta class to track attributes of some type in order of declaration
`PublicOrderedDict`	Supplies public function to return copy with only keys that are not inclosed in double underscores
`Tracker`	Tracks all class attributes not enclosed with double underscores in order, and makes them available as its __tracked__ attribute using MetaTracker.

class corelay.tracker.MetaTracker(classname, bases, class_dict)[source]

Bases: ABCMeta

Meta class to track attributes of some type in order of declaration

Example

>>> class OrderedInts(metaclass=MetaTracker):
...     a = 14
...     b = 21
...     c = 42
... OrderedInts(a=0).__tracked__
OrderedDict([('__module__', '__main__'), ('__qualname__', 'OrderedInts'), ('a', 0), ('b', 21), ('c', 42)])

Note

See PEP3115

class corelay.tracker.PublicOrderedDict[source]

Bases: OrderedDict

Supplies public function to return copy with only keys that are not inclosed in double underscores

public()[source]: Returns copy with only keys that are not inclosed in double underscores

class corelay.tracker.Tracker[source]

Bases: object

Tracks all class attributes not enclosed with double underscores in order, and makes them available as its __tracked__ attribute using MetaTracker.

classmethod collect(dtype)[source]

Return all tracked class attributes of a certain type.

Parameters: dtype (type or tuple of type) – Type(s) of the class attributes to collect.
Returns: An OrderedDict, with the attribute names as keys and their corresponding values.
Return type: OrderedDict

collect_attr(dtype)[source]

Return all instance attributes, corresponding to tracked class attributes of a certain type.

Parameters: dtype (type or tuple of type) – Type(s) of the class attributes to collect.
Returns: An OrderedDict, with the attribute names as keys and the corresponding instance attribute values.
Return type: OrderedDict