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as a 2-tuple; but raise KeyError if D is empty.
N)r� r� rA r� r� r r r �popitem� s zMutableMapping.popitemc C s& z| � � qW n ty Y n0 dS )z,D.clear() -> None. Remove all items from D.N)r� r� r1 r r r r� � s zMutableMapping.clearc K s| t |t�r"|D ]}|| | |< qn<t|d�rH|�� D ]}|| | |< q4n|D ]\}}|| |< qL|�� D ]\}}|| |< qfdS )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
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zMutableMapping.updateNc C s* z
| | W S t y$ || |< Y n0 |S )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
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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�r2 �indexr r r r� � s zSequence.__getitem__c c s: d}z | | }|V |d7 }qW n t y4 Y d S 0 d S )Nr r" r� )r2 �ir� r r r rX � s zSequence.__iter__c C s$ | D ]}||u s||kr dS qdS r� r )r2 rC r� r r r r^ � s zSequence.__contains__c c s$ t tt| ���D ]}| | V qd S r )�reversed�rangerm )r2 r� r r r rZ � s zSequence.__reversed__r Nc C s� |dur"|dk r"t t| �| d�}|dur>|dk r>|t| �7 }|}|du sR||k r�z"| | }||u sl||krr|W S W n ty� Y q�Y n0 |d7 }qBt�dS )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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r c @ s e Zd ZdZdZdS )r! zMThis unifies bytes and bytearray.
XXX Should add all their methods.
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dd� ZdS )r r c C s t �d S r r� �r2 r� rC r r r r� " s zMutableSequence.__setitem__c C s t �d S r r� r� r r r r� & s zMutableSequence.__delitem__c C s t �dS )z3S.insert(index, value) -- insert value before indexNr� r� r r r �insert* s zMutableSequence.insertc C s | � t| �|� dS )z:S.append(value) -- append value to the end of the sequenceN)r� rm rB r r r �append/ s zMutableSequence.appendc C s& z| � � qW n ty Y n0 dS )z,S.clear() -> None -- remove all items from SN)r� r� r1 r r r r� 3 s zMutableSequence.clearc C sH t | �}t|d �D ].}| || d | | | |< | || d < qdS )z!S.reverse() -- reverse *IN PLACE*rj r" N)rm r� )r2 r� r� r r r �reverse; s zMutableSequence.reversec C s( || u rt |�}|D ]}| �|� qdS )zMS.extend(iterable) -- extend sequence by appending elements from the iterableN)rn r� )r2 r� r� r r r �extendA s zMutableSequence.extendrz 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 )r2 r� r� r r r r� H s zMutableSequence.popc C s | | � |�= dS )zvS.remove(value) -- remove first occurrence of value.
Raise ValueError if the value is not present.
N)r� rB r r r r� P s zMutableSequence.removec C s | � |� | S r )r� )r2 r� r r r �__iadd__V s
zMutableSequence.__iadd__N)rz )r7 r8 r9 r: r r� r� r� r� r� r� r� r� r� r� r r r r r s
r )Rr� �abcr r r� r� rn �intr> � EllipsisTyper r� �__all__r7 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_iterator�zip� zip_iterator� dict_keys� dict_values�
dict_itemsr( � mappingproxy� generatorr% � coroutinerP r& �async_generatorr/ r r r
�registerr r r
r r r r r r r r_ rv r r � frozensetr r r r r r r r� r rl rd �
memoryviewr! �bytesr r r r r �<module> s�
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