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linecache.cpython-36.pyc
3 \� � @ sn d Z ddlZddlZddlZddlZdddgZddd�Zi add� Zddd �Z dd d�Z dd d �Z d d� Z dS )z�Cache lines from Python source files. This is intended to read lines from modules imported -- hence if a filename is not found, it will look down the module search path for a file by that name. � N�getline� clearcache� checkcachec C s: t | |�}d| ko t|�kn r2||d S dS d S )N� � )�getlines�len)�filename�lineno�module_globals�lines� r �!/usr/lib64/python3.6/linecache.pyr s c C s i a dS )zClear the cache entirely.N)�cacher r r r r s c C sR | t kr(t | }t|�dkr(t | d S y t| |�S tk rL t� g S X dS )z�Get the lines for a Python source file from the cache. Update the cache if it doesn't contain an entry for this file already.r � N)r r � updatecache� MemoryErrorr )r r �entryr r r r % s r c C s� | dkrt tj� �}n| tkr&| g}ndS x~|D ]v} t| }t|�dkrJq0|\}}}}|dkr`q0ytj|�}W n tk r� t| = w0Y nX ||jks�||jkr0t| = q0W dS )zUDiscard cache entries that are out of date. (This is not checked upon each call!)Nr ) �listr �keysr �os�stat�OSError�st_size�st_mtime)r � filenamesr �size�mtimer �fullnamer r r r r 5 s& c " C s� | t kr tt | �dkr t | = | s8| jd�r<| jd�r<g S | }ytj|�}W �n tk �rV | }t| |�r�yt | d � }W n ttfk r� Y n<X |dkr�g S t|�ddd� |j � D �|ft | < t | d S tj j | �r�g S xjt j D ]\}ytj j ||�}W n ttfk �r w�Y nX ytj|�}P W q� tk �rH Y q�X q�W g S Y nX y"tj|��}|j� }W dQ R X W n tk �r� g S X |�r�|d jd � �r�|d d 7 < |j|j } } | | ||ft | < |S ) z�Update a cache entry and return its list of lines. If something's wrong, print a message, discard the cache entry, and return an empty list.r �<�>r Nc S s g | ] }|d �qS )� r )�.0�liner r r � <listcomp>q s z updatecache.<locals>.<listcomp>r r! ���r% )r r � startswith�endswithr r r � lazycache� ImportError� splitlines�path�isabs�sys�join� TypeError�AttributeError�tokenize�open� readlinesr r ) r r r r �basename�data�dirname�fpr r r r r r r R sV r c C s� | t kr tt | �dkr dS dS | s:| jd�r>| jd�r>dS |r�d|kr�|jd�}|d }t|dd �}|r�|r�tj||�}|ft | < dS dS ) a� Seed the cache for filename with module_globals. The module loader will be asked for the source only when getlines is called, not immediately. If there is an entry in the cache already, it is not altered. :return: True if a lazy load is registered in the cache, otherwise False. To register such a load a module loader with a get_source method must be found, the filename must be a cachable filename, and the filename must not be already cached. r TFr r � __loader__�__name__� get_sourceN)r r r& r' �get�getattr� functools�partial)r r �name�loaderr: � get_linesr r r r( � s r( )N)N)N)N) �__doc__r= r- r r1 �__all__r r r r r r r( r r r r �<module> s A
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