관리-도구
편집 파일: __init__.cpython-36.pyc
3 \� � @ s� d Z dddgZddlZddlZddlZddlZG dd� de�Zddd gZda i Z ee fZydd l m Z W n ek r� dZ Y nX dd d�Zdd� Zedkr�x(ejdd� D ]Zeee�p�de� q�W dS )aN Generic interface to all dbm clones. Use import dbm d = dbm.open(file, 'w', 0o666) The returned object is a dbm.gnu, dbm.ndbm or dbm.dumb object, dependent on the type of database being opened (determined by the whichdb function) in the case of an existing dbm. If the dbm does not exist and the create or new flag ('c' or 'n') was specified, the dbm type will be determined by the availability of the modules (tested in the above order). It has the following interface (key and data are strings): d[key] = data # store data at key (may override data at # existing key) data = d[key] # retrieve data at key (raise KeyError if no # such key) del d[key] # delete data stored at key (raises KeyError # if no such key) flag = key in d # true if the key exists list = d.keys() # return a list of all existing keys (slow!) Future versions may change the order in which implementations are tested for existence, and add interfaces to other dbm-like implementations. �open�whichdb�error� Nc @ s e Zd ZdS )r N)�__name__� __module__� __qualname__� r r �$/usr/lib64/python3.6/dbm/__init__.pyr & s zdbm.gnuzdbm.ndbmzdbm.dumb)�ndbm�r� c C s� t dkr`xFtD ]>}yt|dgd�}W n tk r: wY nX t sD|a |t|< qW t s`tdt ��d|krpt| �nd}|dkr�d|ks�d|kr�t }q�td d��n:|d kr�td d ��n$|tkr�td d j|���nt| }|j| ||�S ) a� Open or create database at path given by *file*. Optional argument *flag* can be 'r' (default) for read-only access, 'w' for read-write access of an existing database, 'c' for read-write access to a new or existing database, and 'n' for read-write access to a new database. Note: 'r' and 'w' fail if the database doesn't exist; 'c' creates it only if it doesn't exist; and 'n' always creates a new database. Nr )�fromlistz no dbm clone found; tried %s�n�cr z#need 'c' or 'n' flag to open new db� z db type could not be determinedz/db type is {0}, but the module is not available) � _defaultmod�_names� __import__� ImportError�_modulesr r �formatr )�file�flag�mode�name�mod�resultr r r r 5 s. c > C s� y4t j| d d�}|j� t j| d d�}|j� dS tk r� y:t j| d d�}|j� tdk r|tj| �}|j� dS W n tk r� Y nX Y nX y`tj| d � tj| d �j}|dkr�d S t j| d d�}z|jd �dkr�d S W d|j� X W n tk �r Y nX yt j| d�}W n tk �r8 dS X |� |jd �}W dQ R X |dd� }t |�dk�rrdS yt j d|�\}W n t j k �r� dS X |dk�r�dS yt j d|dd� �\}W n t j k �r� dS X dS )au Guess which db package to use to open a db file. Return values: - None if the database file can't be read; - empty string if the file can be read but can't be recognized - the name of the dbm submodule (e.g. "ndbm" or "gnu") if recognized. Importing the given module may still fail, and opening the database using that module may still fail. z.pag�rbz.dirzdbm.ndbmz.dbNz.datr zdbm.dumb� � '� "� � r z=l�ΚW�͚W�ϚWzdbm.gnu)r r )r# r$ r% ���) �ior �close�OSErrorr �os�stat�st_size�read�len�structZunpackr )�filename�f�d�sizeZs16�s�magicr r r r a s` �__main__r ZUNKNOWN)r r )�__doc__�__all__r' r* r/ �sys� Exceptionr r r r r) Zdbmr r r r r �argvr0 �printr r r r �<module> s& ,Y