.PhjdZddlmZddlmZerddlmZGddeZGddeZd S) z# meta.py Some useful metaclasses. ) annotations) TYPE_CHECKING)Anyc&eZdZUdZded<dd Zd S)LeafClassesMetaa A metaclass for classes that keeps track of all of them that aren't base classes. >>> Parent = LeafClassesMeta('MyParentClass', (), {}) >>> Parent in Parent._leaf_classes True >>> Child = LeafClassesMeta('MyChildClass', (Parent,), {}) >>> Child in Parent._leaf_classes True >>> Parent in Parent._leaf_classes False >>> Other = LeafClassesMeta('OtherClass', (), {}) >>> Parent in Other._leaf_classes False >>> len(Other._leaf_classes) 1 zset[type[Any]] _leaf_classesnamestrbasestuple[type[object], ...]attrsdict[str, object]returnNonect|dst|_t|d}|||t|z}dS)Nr)hasattrsetrgetattradd)clsr r r leaf_classess S/var/www/html/test/jupyter/venv/lib/python3.11/site-packages/jaraco/classes/meta.py__init__zLeafClassesMeta.__init__&sY sO,, & #C sO44 E " N)r r r r r rrr)__name__ __module__ __qualname____doc____annotations__rrrrrsB("!!! # # # # # #rrc(eZdZdZdZd fd ZxZS) TagRegisteredaY As classes of this metaclass are created, they keep a registry in the base class of all classes by a class attribute, indicated by attr_name. >>> FooObject = TagRegistered('FooObject', (), dict(tag='foo')) >>> FooObject._registry['foo'] is FooObject True >>> BarObject = TagRegistered('Barobject', (FooObject,), dict(tag='bar')) >>> FooObject._registry is BarObject._registry True >>> len(FooObject._registry) 2 '...' below should be 'jaraco.classes' but for pytest-dev/pytest#3396 >>> FooObject._registry['bar'] tagr r r r namespacerrrctt||||t|dsi|_|j}t ||jd}|r ||j|<dSdS)N _registry)superr"rrr& __class__r attr_name)rr r r$metaattrr(s rrzTagRegistered.__init__Is~ mS!!**4 BBBsK(( CM}sDND11  &"%CM$    & &r)r r r r r$rrr)rrrrr)r __classcell__)r(s@rr"r"4sN$I & & & & & & & & & &rr"N) r __future__rtypingrrtyperr"r rrr0s #""""" "#"#"#"#"#d"#"#"#J!&!&!&!&!&D!&!&!&!&!&r