ruạṛ
3 U�*WW � @ s d dl mZ G dd� de�ZdS )� )� MutableSetc @ s� e Zd ZdZdd� Zdd� ZejZej Z ej Z ej ZejZejZdd� Zdd � Zd d � Zd d � Zdd� Zdd� Zedd� �ZdS )�SetMixinzA Mix-in for sets. You must define __iter__, add, remove c C s d}x| D ] }|d7 }q W |S )Nr � � )�selfZlength�itemr r �!/usr/lib64/python3.6/_setmixin.py�__len__ s zSetMixin.__len__c C s x| D ]}||krdS qW dS )NTFr )r r Zhas_itemr r r � __contains__ s zSetMixin.__contains__c C s t | �S )N)�set)r r r r �copy s z SetMixin.copyc C s | |O } d S )Nr )r �otherr r r �update s zSetMixin.updatec C s | |M } d S )Nr )r r r r r �intersection_update# s z SetMixin.intersection_updatec C s | |8 } d S )Nr )r r r r r �difference_update& s zSetMixin.difference_updatec C s | |N } d S )Nr )r r r r r �symmetric_difference_update) s z$SetMixin.symmetric_difference_updatec C s( y| j |� W n tk r" Y nX d S )N)�remove�KeyError)r r r r r �discard, s zSetMixin.discardc C s t |�S )N)r )�cls�itr r r �_from_iterable2 s zSetMixin._from_iterableN)�__name__� __module__� __qualname__�__doc__r r r �__le__�issubset�__ge__� issuperset�__or__�union�__and__� intersection�__sub__� difference�__xor__�symmetric_differencer r r r r r � classmethodr r r r r r s r N)� collectionsr r r r r r �<module> s
cải xoăn