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Filename :
exception.cpython-39.pyc
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a �M�eE � @ s� d Z ddlmZmZ G dd� de�ZG dd� de�ZG dd� de�ZG d d � d e�ZG d d � d e�Z G d d� de�Z G dd� de�Z G dd� de �Z G dd� de�Z G dd� de�ZG dd� d�ZdS )z�Common DNS Exceptions. Dnspython modules may also define their own exceptions, which will always be subclasses of ``DNSException``. � )�Optional�Setc sx e Zd ZU dZdZee ed< e� Z e e ed< dZ ee ed< � fdd�Z dd � Z d d � Zd d � Z� fdd�Z� ZS )� DNSExceptiona� Abstract base class shared by all dnspython exceptions. It supports two basic modes of operation: a) Old/compatible mode is used if ``__init__`` was called with empty *kwargs*. In compatible mode all *args* are passed to the standard Python Exception class as before and all *args* are printed by the standard ``__str__`` implementation. Class variable ``msg`` (or doc string if ``msg`` is ``None``) is returned from ``str()`` if *args* is empty. b) New/parametrized mode is used if ``__init__`` was called with non-empty *kwargs*. In the new mode *args* must be empty and all kwargs must match those set in class variable ``supp_kwargs``. All kwargs are stored inside ``self.kwargs`` and used in a new ``__str__`` implementation to construct a formatted message based on the ``fmt`` class variable, a ``string``. In the simplest case it is enough to override the ``supp_kwargs`` and ``fmt`` class variables to get nice parametrized messages. N�msg� supp_kwargs�fmtc sp | j |i |�� |r2| jf i |��| _t| �| _nt� | _| jd u rL| j| _|r^t� j|� nt� �| j� d S �N) � _check_params� _check_kwargs�kwargs�strr �dict�__doc__�super�__init__��self�argsr �� __class__� �1/usr/lib/python3.9/site-packages/dns/exception.pyr 7 s zDNSException.__init__c O s$ |s|r t |�t |�ks J d��dS )zsOld exceptions supported only args and not kwargs. For sanity we do not allow to mix old and new behavior.z=keyword arguments are mutually exclusive with positional argsN)�boolr r r r r G s ��zDNSException._check_paramsc K s( |r$t |�� �| jks$J d| j ��|S )Nz-following set of keyword args is required: %s)�set�keysr )r r r r r r P s ��zDNSException._check_kwargsc K sd i }|� � D ]R\}}t|ttf�rVttt|��||< t|| �dkr^|| �� ||< q |||< q |S )z�Format kwargs before printing them. Resulting dictionary has to have keys necessary for str.format call on fmt class variable. � )�items� isinstance�listr �mapr �len�pop)r r �fmtargs�kw�datar r r � _fmt_kwargsW s zDNSException._fmt_kwargsc s> | j r0| jr0| jf i | j ��}| jjf i |��S t� �� S d S r )r r r% �formatr �__str__)r r" r r r r' i s zDNSException.__str__)�__name__� __module__� __qualname__r r r r �__annotations__r r r r r r r r% r' � __classcell__r r r r r s r c @ s e Zd ZdZdS )� FormErrorzDNS message is malformed.N�r( r) r* r r r r r r- s s r- c @ s e Zd ZdZdS )� SyntaxErrorzText input is malformed.Nr. r r r r r/ w s r/ c @ s e Zd ZdZdS )� UnexpectedEndz Text input ended unexpectedly.Nr. r r r r r0 { s r0 c @ s e Zd ZdZdS )�TooBigzThe DNS message is too big.Nr. r r r r r1 s r1 c s* e Zd ZdZdhZdZ� fdd�Z� ZS )�Timeoutz The DNS operation timed out.�timeoutz7The DNS operation timed out after {timeout:.3f} secondsc s t � j|i |�� d S r )r r r r r r r � s zTimeout.__init__)r( r) r* r r r r r, r r r r r2 � s r2 c @ s e Zd ZdZdS )�UnsupportedAlgorithmz&The DNSSEC algorithm is not supported.Nr. r r r r r4 � s r4 c @ s e Zd ZdZdS )�AlgorithmKeyMismatchz=The DNSSEC algorithm is not supported for the given key type.Nr. r r r r r5 � s r5 c @ s e Zd ZdZdS )�ValidationFailurez The DNSSEC signature is invalid.Nr. r r r r r6 � s r6 c @ s e Zd ZdZdS )�DeniedByPolicyzDenied by DNSSEC policy.Nr. r r r r r7 � s r7 c @ s$ e Zd Zdd� Zdd� Zdd� ZdS )�ExceptionWrapperc C s || _ d S r )�exception_class)r r9 r r r r � s zExceptionWrapper.__init__c C s | S r r )r r r r � __enter__� s zExceptionWrapper.__enter__c C s( |d ur$t || j�s$| �t|��|�dS )NF)r r9 r )r �exc_typeZexc_valZexc_tbr r r �__exit__� s zExceptionWrapper.__exit__N)r( r) r* r r: r< r r r r r8 � s r8 N)r �typingr r � Exceptionr r- r/ r0 r1 r2 r4 r5 r6 r7 r8 r r r r �<module> s W