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Zdd Zdd Zdd Zi Zi Zi Zdd Zdd Zdd ZdS )zHelper to provide extensibility for pickle.
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C, not for instances of user-defined classes.
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add_extensionremove_extensionclear_extension_cacheNc C s, t |std|t| < |d ur(t| d S )Nz$reduction functions must be callable)callable TypeErrordispatch_tabler )ob_typepickle_functionconstructor_ob r /usr/lib64/python3.9/copyreg.pyr s
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y d }Y n0 Y n0 | }|r t||fS t|fS d S )N __flags__zcannot pickle z object __slots__zf object: a class that defines __slots__ without defining __getstate__ cannot be pickled with protocol ) __class____mro__hasattrr _HEAPTYPEr
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r0 c G s | j | g|R S r r )r r- r r r
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__newobj_ex__a s r4 c C s | j d}|dur|S g }t| ds(n| jD ]}d|j v r.|j d }t|trV|f}|D ]^}|dv rjqZqZ|dr|ds|j d}|r|
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|| _ W n Y n0 |S )a Return a list of slot names for a given class.
This needs to find slots defined by the class and its bases, so we
can't simply return the __slots__ attribute. We must walk down
the Method Resolution Order and concatenate the __slots__ of each
class found there. (This assumes classes don't modify their
__slots__ attribute to misrepresent their slots after the class is
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__slotnames__Nr )r) __weakref_____z_%s%s) r) getr r r" str
startswithendswithr% lstripappendr5 )r namesr slotsnamestrippedr r r
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rC c C s t |}d| kr dks&n td| |f}t||krNt||krNdS |tv rjtd|t| f |tv rtd|t| f |t|< |t|< dS )zRegister an extension code. izcode out of rangeNz)key %s is already registered with code %sz$code %s is already in use for key %s)int
ValueError_extension_registryr9 _inverted_registrymodulerA codekeyr r r
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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)rG r9 rH rF _extension_cacherI r r r
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r s r )N)__doc____all__r r r r NameErrorr r r! typerE r r# r0 r2 r4 rC rG rH rM r r r r r r r