← Back
Editing: dumb.cpython-38.opt-2.pyc
U i�f- � @ sR d dl Zd dlZd dlZd dlZddgZdZ e Z G dd� dej j �Zd d d�ZdS ) � N�error�openi c @ s� e Zd ZeZeZd+dd�Zdd� Zdd� Zdd � ZeZ d d � Z d d � Z dd� Z dd� Z dd� Zdd� Zdd� Zdd� Zdd� Zd d � Zd d � ZeZd d!� Zd"d#� ZeZd$d%� Zd&d'� Zd(d)� Zd*S ),� _Database�cc C sL || _ |dk| _|d | _|d | _|d | _d | _| �|� | �|� d S )N�rz.dirz.datz.bak)�_mode� _readonly�_dirfile�_datfile�_bakfile�_index�_create�_update)�selfZ filebasename�mode�flag� r �-/opt/alt/python38/lib64/python3.8/dbm/dumb.py�__init__0 s z_Database.__init__c C s� |dkrB| j | j| jfD ](}zt�|� W q tk r> Y qX qztj| j ddd�}W nH tk r� |dkrr� tj| j ddd��}| �| j � W 5 Q R X Y n X |� � d S )N�nr �Latin-1��encoding�r r �w) r r r �_os�remove�OSError�_ior �_chmod�close)r r �filename�fr r r r I s z_Database._createc C s� d| _ i | _ztj| jddd�}W n$ tk rF |dkr<� d| _ Y nFX |�: |D ].}|�� }t�|�\}}|� d�}|| j|< qRW 5 Q R X d S )NFr r r r T) � _modifiedr r r r r �rstrip�_astZ literal_eval�encode)r r r" �line�key�pos_and_siz_pairr r r r \ s z_Database._updatec C s� | j d ks| jsd S z| j�| j� W n tk r: Y nX z| j�| j| j� W n tk rf Y nX | jj | jddd��B}| � | j� | j � � D ]$\}}d|� d�|f }|� |� q�W 5 Q R X d S )Nr r r �%r, %r )r r# r �unlinkr r �renamer r r r �items�decode�write)r r" r( r) �entryr r r �_commitp s z_Database._commitc C s | j d krtd��d S �N�"DBM object has already been closed)r r �r r r r � _verify_open� s z_Database._verify_openc C s\ t |t�r|�d�}| �� | j| \}}t�| jd��}|�|� |� |�}W 5 Q R X |S )N�utf-8�rb) � isinstance�strr& r5 r r r r �seek�read)r r( �pos�sizr" Zdatr r r � __getitem__� s z_Database.__getitem__c C sr t �| jd��R}|�dd� t|�� �}|t d t t }|�d|| � |}|�|� W 5 Q R X |t|�fS )N�rb+r � � � ) r r r r: �int�tell� _BLOCKSIZEr/ �len)r �valr" r< Znposr r r �_addval� s z_Database._addvalc C s: t �| jd��}|�|� |�|� W 5 Q R X |t|�fS )Nr? )r r r r: r/ rF )r r< rG r" r r r �_setval� s z_Database._setvalc C sP || j |< tj| jddd��*}| �| j� |�d|�d�|f � W 5 Q R X d S )N�ar r r* )r r r r r r/ r. )r r( r) r" r r r �_addkey� s z_Database._addkeyc C s� | j rtd��t|t�r$|�d�}nt|ttf�s:td��t|t�rP|�d�}nt|ttf�sftd��| �� d| _ || j kr�| � || � |�� n^| j | \}}|t d t }t|�t d t }||kr�| �||�| j |< n| � |�| j |< d S )N�'The database is opened for reading onlyr6 z keys must be bytes or stringsz values must be bytes or stringsTrA )r r r8 r9 r& �bytes� bytearray� TypeErrorr5 r# r rK rH rE rF rI )r r( rG r< r= Z oldblocksZ newblocksr r r � __setitem__� s( z_Database.__setitem__c C sD | j rtd��t|t�r"|�d�}| �� d| _| j|= | �� d S )NrL r6 T) r r r8 r9 r& r5 r# r r1 �r r( r r r � __delitem__� s z_Database.__delitem__c C s0 z t | j�W S tk r* td�d �Y nX d S r2 )�listr rO r r4 r r r �keys� s z_Database.keysc s � � � � fdd�� j�� D �S )Nc s g | ]}|� | f�qS r r )�.0r( r4 r r � <listcomp>� s z#_Database.items.<locals>.<listcomp>)r5 r rT r4 r r4 r r- � s z_Database.itemsc C sR t |t�r|�d�}z || jkW S tk rL | jd krFtd�d �n� Y nX d S )Nr6 r3 )r8 r9 r& r rO r rQ r r r � __contains__� s z_Database.__contains__c C s0 z t | j�W S tk r* td�d �Y nX d S r2 )�iterr rO r r4 r r r �iterkeys s z_Database.iterkeysc C s0 z t | j�W S tk r* td�d �Y nX d S r2 )rF r rO r r4 r r r �__len__ s z_Database.__len__c C s, z | �� W 5 d | _ | _ | _| _X d S �N)r r r r r1 r4 r r r r s z_Database.closec C s | j �|| j� d S r[ )r �chmodr )r �filer r r r s z_Database._chmodc C s | S r[ r r4 r r r � __enter__ s z_Database.__enter__c G s | � � d S r[ )r )r �argsr r r �__exit__ s z_Database.__exit__N)r ) �__name__� __module__� __qualname__r r r r r r1 �syncr5 r> rH rI rK rP rR rT r- rW rY �__iter__rZ r �__del__r r^ r` r r r r r # s2 % r r � c C sV zt �d�}t �|� W n tk r, Y n X || @ }|dkrHtd��t| ||d�S )Nr )r r r r z)Flag must be one of 'r', 'w', 'c', or 'n')r )r �umask�AttributeError� ValueErrorr )r] r r Zumr r r r " s )r rg )Zastr% �ior �osr Zcollections.abc� collections�__all__rE r r �abc�MutableMappingr r r r r r �<module> s
Save File
Cancel