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� dS )EzjAbstract Base Classes (ABCs) for collections, according to PEP 3119.
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� �Z dS ) r r c C s t �dS )zcSend a value into the coroutine.
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}|S ) a+ Compute the hash value of a set.
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by the built-in frozenset type.
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r c C s t �dS )zAdd an element.N)�NotImplementedError)r. r: r r r! �add: s zMutableSet.addc C s t �dS )z8Remove an element. Do not raise an exception if absent.N)ry )r. r: r r r! �discard? s zMutableSet.discardc C s || krt |��| �|� dS )z5Remove an element. If not a member, raise a KeyError.N)�KeyErrorr{ )r. r: r r r! �removeD s zMutableSet.removec C s> t | �}y t|�}W n tk
r. td�Y nX | �|� |S )z2Return the popped value. Raise KeyError if empty.N)�iter�nextr9 r| r{ )r. r\ r: r r r! �popJ s
zMutableSet.popc C s, yx | � � qW W n tk
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r, || jkr(� |S X | |= |S dS )z�D.pop(k[,d]) -> v, remove specified key and return the corresponding value.
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r& Y nX dS )z,D.clear() -> None. Remove all items from D.N)r� r| )r. r r r! r� 0 s
zMutableMapping.clearc O s� | s t d��| ^}} t| �dkr0t dt| � ��| r�| d }t|t�rbx^|D ]}|| ||< qLW nDt|d�r�x8|�� D ]}|| ||< qvW nx|D ]\}}|||< q�W x |�� D ]\}}|||< q�W dS )aK D.update([E, ]**F) -> None. Update D from mapping/iterable E and F.
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recommended.
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XXX Should add all their methods.
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dd� ZdS )r r c C s t �d S )N)r� )r. r� r: r r r! r� � s zMutableSequence.__setitem__c C s t �d S )N)r� )r. r� r r r! r� � s zMutableSequence.__delitem__c C s t �dS )z3S.insert(index, value) -- insert value before indexN)r� )r. r� 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� rT )r. r: r r r! �append� s zMutableSequence.appendc C s, yx | � � qW W n tk
r& Y nX dS )z,S.clear() -> None -- remove all items from SN)r� r� )r. r r r! r� � s
zMutableSequence.clearc C sL t | �}x>t|d �D ].}| || d | | | |< | || d < qW dS )z!S.reverse() -- reverse *IN PLACE*ri r N)rT r� )r. rq r� r r r! �reverse� s zMutableSequence.reversec C s x|D ]}| � |� qW dS )zMS.extend(iterable) -- extend sequence by appending elements from the iterableN)r� )r. r� r� r r r! �extend� s
zMutableSequence.extendrk 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 )r. 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.
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zMutableSequence.__iadd__N)rk )r2 r3 r4 r5 r r� r� r� r� r� r� r� r� r} r� r r r r! r � s
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