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a �DOgj � @ s� d Z g d�Zi Zddd�Zdd� Zze W n ey< Y n0 dd� Zeeee� d d � Zd Z e e j �Z d d � Zdd� Zdd� Zdd� Zi Zi Zi Zdd� Zdd� Zdd� ZdS )z�Helper to provide extensibility for pickle. This is only useful to add pickle support for extension types defined in C, not for instances of user-defined classes. )�pickle� constructor� add_extension�remove_extension�clear_extension_cacheNc C s, t |�std��|t| < |d ur(t|� d S )Nz$reduction functions must be callable)�callable� TypeError�dispatch_tabler )�ob_type�pickle_function�constructor_ob� r � /usr/lib64/python3.9/copyreg.pyr s r c C s t | �std��d S )Nz constructors must be callable)r r )�objectr r r r s r c C s t | j| jffS �N)�complex�real�imag)�cr r r �pickle_complex" s r c C s< |t u rt �| �}n$|�| |�}|jt jkr8|�||� |S r )r �__new__�__init__)�cls�base�state�objr r r �_reconstructor) s r i c C s |dk s J �| j }|jD ]:}t|d�r4|jt@ s4 qX|j}t|t�r|j|u r qXqt }|t u rfd }n"||u r�t d|j �d���|| �}|||f}z | j }W nX t y� t| dd �r�t d|j �d|� ��d �z | j}W n t y� d }Y n0 Y n0 |� }|�r t||fS t|fS d S )N� � __flags__zcannot pickle z object� __slots__zf object: a class that defines __slots__ without defining __getstate__ cannot be pickled with protocol )� __class__�__mro__�hasattrr � _HEAPTYPEr � isinstance� _new_type�__self__r r �__name__� __getstate__�AttributeError�getattr�__dict__r ) �self�protor r �newr �args�getstate�dictr r r � _reduce_ex7 s@ �� r1 c G s | j | g|�R � S r �r )r r. r r r � __newobj__^ s r3 c C s | j | g|�R i |��S )zUsed by pickle protocol 4, instead of __newobj__ to allow classes with keyword-only arguments to be pickled correctly. r2 )r r. �kwargsr r r � __newobj_ex__a s r5 c C s� | j �d�}|dur|S g }t| d�s(n�| jD ]�}d|j v r.|j d }t|t�rV|f}|D ]^}|dv rjqZqZ|�d�r�|�d�s�|j� d�}|r�|� d||f � q�|� |� qZ|� |� qZq.z || _ W n Y n0 |S )a� Return a list of slot names for a given class. This needs to find slots defined by the class and its bases, so we can't simply return the __slots__ attribute. We must walk down the Method Resolution Order and concatenate the __slots__ of each class found there. (This assumes classes don't modify their __slots__ attribute to misrepresent their slots after the class is defined.) � __slotnames__Nr )r* � __weakref__�__�_z_%s%s) r* �getr! r r# �str� startswith�endswithr& �lstrip�appendr6 )r �namesr �slots�name�strippedr r r � _slotnamesg s2 rD c C s� t |�}d| kr dks&n td��| |f}t�|�|krNt�|�|krNdS |tv rjtd|t| f ��|tv r�td|t| f ��|t|< |t|< dS )zRegister an extension code.� i���zcode out of rangeNz)key %s is already registered with code %sz$code %s is already in use for key %s)�int� ValueError�_extension_registryr: �_inverted_registry��modulerB �code�keyr r r r � s$ � � �r c C sR | |f}t �|�|ks$t�|�|kr4td||f ��t |= t|= |tv rNt|= dS )z0Unregister an extension code. For testing only.z%key %s is not registered with code %sN)rH r: rI rG �_extension_cacherJ r r r r � s ��r c C s t �� d S r )rN �clearr r r r r � s r )N)�__doc__�__all__r r r r � NameErrorr r r" �typerF r r$ r1 r3 r5 rD rH rI rN r r r r r r r �<module> s. '<
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