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✏️ core.cpython-36.pyc
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3 ��] � @ s� d Z ddlZddlZddlmZmZ ejdkZ d Z Z d Z Z d ZZG dd � d e�ZG d d � d e�ZG d d � d e�ZydZej� dd� ZW n ek r� dd� ZY nX G dd� de�ZG dd� de�ZG dd� de�ZG dd� de�Z dS )z6Common code shared between various netaddr sub modules� N)� _callable�_iter_dict_keysZbig� � � c @ s e Zd ZdZdS )�AddrFormatErrorzO An Exception indicating a network address is not correctly formatted. N)�__name__� __module__� __qualname__�__doc__� r r �/usr/lib/python3.6/core.pyr s r c @ s e Zd ZdZdS )�AddrConversionErrorz^ An Exception indicating a failure to convert between address types or notations. N)r r r r r r r r r # s r c @ s e Zd ZdZdS )�NotRegisteredErrorz\ An Exception indicating that an OUI or IAB was not found in the IEEE Registry. N)r r r r r r r r r + s r �* c C s | j � S )z� :param int_val: an unsigned integer. :return: the minimum number of bits needed to represent value provided. )� bit_length)�int_valr r r �num_bits7 s r c C s" d}x| r |d7 }| dL } qW |S )z� :param int_val: an unsigned integer. :return: the minimum number of bits needed to represent value provided. r r r )r Znumbitsr r r r @ s c @ s e Zd ZdZdd� ZdS )� SubscriberzK An abstract class defining the interface expected by a Publisher. c C s t d��dS )z� A callback method used by a Publisher to notify this Subscriber about updates. :param data: a Python object containing data provided by Publisher. z cannot invoke virtual method!N)�NotImplementedError)�self�datar r r �updateR s zSubscriber.updateN)r r r r r r r r r r M s r c @ s( e Zd ZdZejdfdd�Zdd� ZdS )� PrettyPrinterz� A concrete Subscriber that employs the pprint in the standard library to format all data from updates received, writing them to a file-like object. Useful as a debugging aid. Tc C s || _ || _dS )z� Constructor. :param fh: a file-like object to write updates to. Default: sys.stdout. :param write_eol: if ``True`` this object will write newlines to output, if ``False`` it will not. N)�fh� write_eol)r r r r r r �__init__e s zPrettyPrinter.__init__c C s( | j jtj|�� | jr$| j jd� dS )z� A callback method used by a Publisher to notify this Subscriber about updates. :param data: a Python object containing data provided by Publisher. � N)r �write�_pprint�pformatr )r r r r r r s s zPrettyPrinter.updateN)r r r r �_sys�stdoutr r r r r r r \ s r c @ s0 e Zd ZdZdd� Zdd� Zdd� Zdd � Zd S ) � Publisherz� A 'push' Publisher that maintains a list of Subscriber objects notifying them of state changes by passing them update data when it encounter events of interest. c C s g | _ dS )Z ConstructorN)� subscribers)r r r r r � s zPublisher.__init__c C s> t |d�r.ttd��r.|| jkr:| jj|� n td| ��dS )z� Add a new subscriber. :param subscriber: a new object that implements the Subscriber object interface. r zsubscriber.updatez'%r does not support required interface!N)�hasattrr �evalr$ �append� TypeError)r � subscriberr r r �attach� s zPublisher.attachc C s* y| j j|� W n tk r$ Y nX dS )z� Remove an existing subscriber. :param subscriber: a new object that implements the Subscriber object interface. N)r$ �remove� ValueError)r r) r r r �detach� s zPublisher.detachc C s x| j D ]}|j|� qW dS )z� Send update data to to all registered Subscribers. :param data: the data to be passed to each registered Subscriber. N)r$ r )r r r) r r r �notify� s zPublisher.notifyN)r r r r r r* r- r. r r r r r# s r# c @ s0 e Zd ZdZdd� Zdd� Zdd� Zdd � Zd S ) � DictDotLookupa Creates objects that behave much like a dictionaries, but allow nested key access using object '.' (dot) lookups. Recipe 576586: Dot-style nested lookups over dictionary based data structures - http://code.activestate.com/recipes/576586/ c C s� x�|D ]�}t || t�r,t|| �| j|< qt || ttf�r�g }x4|| D ](}t |t�rj|jt|�� qL|j|� qLW || j|< q|| | j|< qW d S )N)� isinstance�dictr/ �__dict__�list�tupler' )r �d�k�l�vr r r r � s zDictDotLookup.__init__c C s || j kr| j | S d S )N)r2 )r �namer r r � __getitem__� s zDictDotLookup.__getitem__c C s t | j�S )N)r r2 )r r r r �__iter__� s zDictDotLookup.__iter__c C s t j| j�S )N)r r r2 )r r r r �__repr__� s zDictDotLookup.__repr__N)r r r r r r: r; r< r r r r r/ � s r/ ) r �sysr! �pprintr Znetaddr.compatr r � byteorderZBIG_ENDIAN_PLATFORM�PZ INET_PTON�ZZZEROFILL�NZNOHOST� Exceptionr r r �ar r �AttributeError�objectr r r# r/ r r r r �<module> s( #.
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