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key/value pairs.
This class provides concrete generic implementations of all
methods except for __getitem__, __setitem__, __delitem__,
__iter__, and __len__.
r c C rH r r �r4 r rL r r r � __setitem__� r6 zMutableMapping.__setitem__c C rH r r r r r r � __delitem__� r6 zMutableMapping.__delitem__c C s: z| | }W n t y || ju r� | Y S w | |= |S )z�D.pop(k[,d]) -> v, remove specified key and return the corresponding value.
If key is not found, d is returned if given, otherwise KeyError is raised.
)r� �_MutableMapping__marker)r4 r r rL r r r r� � s
�zMutableMapping.popc C s< zt t| ��}W n
ty td�w | | }| |= ||fS )z�D.popitem() -> (k, v), remove and return some (key, value) pair
as a 2-tuple; but raise KeyError if D is empty.
N)r� r� rJ r� r r r r �popitem� s �zMutableMapping.popitemc C r� )z,D.clear() -> None. Remove all items from D.TN)r! r� r3 r r r r� � r� zMutableMapping.clearc K s| t |t�r|D ]}|| | |< qn t|d�r$|�� D ]}|| | |< qn |D ]\}}|| |< q&|�� D ]\}}|| |< q3dS )aK D.update([E, ]**F) -> None. Update D from mapping/iterable E and F.
If E present and has a .keys() method, does: for k in E: D[k] = E[k]
If E present and lacks .keys() method, does: for (k, v) in E: D[k] = v
In either case, this is followed by: for k, v in F.items(): D[k] = v
r N)r r r� r r
)r4 r� r� r rL r r r �update� s
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�zMutableMapping.updateNc C s( z| | W S t y || |< Y |S w )z@D.setdefault(k[,d]) -> D.get(k,d), also set D[k]=d if k not in Dr r r r r �
setdefault� s
�zMutableMapping.setdefault)r r )r< r= r> r� r? r r r �objectr r� r! r� r" r# r r r r r � s
r c @ sN e Zd ZdZdZdZedd� �Zdd� Zdd � Z d
d � Z
ddd�Z dd� Z d
S )r z�All the operations on a read-only sequence.
Concrete subclasses must override __new__ or __init__,
__getitem__, and __len__.
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IndexError�r4 �indexr r r r� r6 zSequence.__getitem__c c s6 � d}z
| | }|V |d7 }q t y Y d S w )Nr Tr" r& )r4 �ir r r r rs s �� �zSequence.__iter__c C s$ | D ]
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�zSequence.__contains__c c s& � t tt| ���D ]}| | V q d S r )�reversed�ranger� )r4 r* r r r rw s � �zSequence.__reversed__r Nc C s� |dur|dk rt t| �| d�}|dur |dk r |t| �7 }|}|du s)||k rQz| | }||u s6||kr9|W S W n
tyD Y t�w |d7 }|du s)||k s)t�)z�S.index(value, [start, [stop]]) -> integer -- return first index of value.
Raises ValueError if the value is not present.
Supporting start and stop arguments is optional, but
recommended.
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ValueError)r4 rL �start�stopr* r r r r r) # s$ � ��zSequence.indexc s t � fdd�| D ��S )zBS.count(value) -> integer -- return number of occurrences of valuec 3 s$ � | ]
}|� u s |� krd V qdS )r" Nr )r� r �rL r r r� < s �" z!Sequence.count.<locals>.<genexpr>)�sumrK r r1 r �count: s zSequence.count)r N)
r< r= r> r� r? r r r� rs r{ rw r) r3 r r r r r � s
r c @ s e Zd ZdZdZdS )r zMThis unifies bytes and bytearray.
XXX Should add all their methods.
r N)r< r= r> r� r? r r r r r D s r c @ sr e Zd ZdZdZedd� �Zedd� �Zedd� �Zd d
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d� Z dd� Z ddd�Z
dd� Zdd� ZdS )r z�All the operations on a read-write sequence.
Concrete subclasses must provide __new__ or __init__,
__getitem__, __setitem__, __delitem__, __len__, and insert().
r c C rH r r& �r4 r) rL r r r r Y r6 zMutableSequence.__setitem__c C rH r r& r( r r r r ] r6 zMutableSequence.__delitem__c C rH )z3S.insert(index, value) -- insert value before indexr& r4 r r r �inserta rv zMutableSequence.insertc C s | � t| �|� dS )z:S.append(value) -- append value to the end of the sequenceN)r5 r� rK r r r r� f s zMutableSequence.appendc C r� )z,S.clear() -> None -- remove all items from STN)r� r' r3 r r r r� j r� zMutableSequence.clearc C sH t | �}t|d �D ]}| || d | | | |< | || d < q
dS )z!S.reverse() -- reverse *IN PLACE*r} r" N)r� r, )r4 r� r* r r r �reverser s ,�zMutableSequence.reversec C s( || u rt |�}|D ]}| �|� q
dS )zMS.extend(iterable) -- extend sequence by appending elements from the iterableN)r� r� )r4 r r r r r r� x s
�zMutableSequence.extendr� c C s | | }| |= |S )z�S.pop([index]) -> item -- remove and return item at index (default last).
Raise IndexError if list is empty or index is out of range.
r )r4 r) r r r r r� s zMutableSequence.popc C s | | � |�= dS )zvS.remove(value) -- remove first occurrence of value.
Raise ValueError if the value is not present.
N)r) rK r r r r� � s zMutableSequence.removec C s | � |� | S r )r� )r4 r r r r �__iadd__� s
zMutableSequence.__iadd__N)r� )r< r= r> r� r? r r r r5 r� r� r6 r� r� r� r7 r r r r r P s
r )Tr� �abcr r r� r� r� �intrE � EllipsisTyper r� �__all__r< r� �bytes_iterator� bytearray�bytearray_iteratorr �dict_keyiteratorr �dict_valueiteratorr
�dict_itemiterator�
list_iteratorr+ �list_reverseiteratorr, �range_iterator�longrange_iteratorr � set_iterator� str_iterator�tuple_iteratorr� � zip_iterator� dict_keys� dict_values�
dict_itemsr( � mappingproxy� generatorr% � coroutiner] r& �async_generatorr/ r
r r �registerr
r r r r r r r r r r| r� r� r� r r � frozensetr r r r r r r r� r r� �str�
memoryviewr �bytesr r r r r �<module> s�
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