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3
Pf*                 @   s  d dl mZ d dlZd dlZd dlZd dlZd dlZd dlZd dlZd dl	Z	d dl
Z
ddlmZ ddlmZmZmZmZ ejeZdaG dd deZG dd	 d	eZG d
d deZG dd deZG dd deZG dd deZedee
jeiZyFyd dl Z!W n e"k
r$   d dl#Z!Y nX eee!j$< eee!j%< [!W n e"e&fk
rX   Y nX dd Z'i Z(dd Z)e	j*e+dZ,dd Z-dS )    )unicode_literalsN   )DistlibException)cached_propertyget_cache_basepath_to_cache_dirCachec                   s.   e Zd Zd fdd	Zdd Zdd Z  ZS )	ResourceCacheNc                s0   |d krt jjt td}tt| j| d S )Nzresource-cache)ospathjoinr   strsuperr	   __init__)selfbase)	__class__ /usr/lib/python3.6/resources.pyr      s    zResourceCache.__init__c             C   s   dS )z
        Is the cache stale for the given resource?

        :param resource: The :class:`Resource` being cached.
        :param path: The path of the resource in the cache.
        :return: True if the cache is stale.
        Tr   )r   resourcer   r   r   r   is_stale#   s    	zResourceCache.is_stalec          	   C   s   |j j|\}}|dkr|}n~tjj| j| j||}tjj|}tjj|sXtj	| tjj
|sjd}n| j||}|rt|d}|j|j W dQ R X |S )z
        Get a resource into the cache,

        :param resource: A :class:`Resource` instance.
        :return: The pathname of the resource in the cache.
        NTwb)finderget_cache_infor
   r   r   r   Zprefix_to_dirdirnameisdirmakedirsexistsr   openwritebytes)r   r   prefixr   resultr   Zstalefr   r   r   get.   s    
zResourceCache.get)N)__name__
__module____qualname__r   r   r$   __classcell__r   r   )r   r   r	      s   r	   c               @   s   e Zd Zdd ZdS )ResourceBasec             C   s   || _ || _d S )N)r   name)r   r   r*   r   r   r   r   I   s    zResourceBase.__init__N)r%   r&   r'   r   r   r   r   r   r)   H   s   r)   c               @   s@   e Zd ZdZdZdd Zedd Zedd Zed	d
 Z	dS )Resourcez
    A class representing an in-package resource, such as a data file. This is
    not normally instantiated by user code, but rather by a
    :class:`ResourceFinder` which manages the resource.
    Fc             C   s   | j j| S )z
        Get the resource as a stream.

        This is not a property to make it obvious that it returns a new stream
        each time.
        )r   
get_stream)r   r   r   r   	as_streamV   s    zResource.as_streamc             C   s   t d krt a t j| S )N)cacher	   r$   )r   r   r   r   	file_path_   s    zResource.file_pathc             C   s   | j j| S )N)r   	get_bytes)r   r   r   r   r    f   s    zResource.bytesc             C   s   | j j| S )N)r   get_size)r   r   r   r   sizej   s    zResource.sizeN)
r%   r&   r'   __doc__is_containerr-   r   r/   r    r2   r   r   r   r   r+   N   s   	r+   c               @   s   e Zd ZdZedd ZdS )ResourceContainerTc             C   s   | j j| S )N)r   get_resources)r   r   r   r   	resourcesr   s    zResourceContainer.resourcesN)r%   r&   r'   r4   r   r7   r   r   r   r   r5   o   s   r5   c               @   s   e Zd ZdZejjdrdZnd Zdd Zdd	 Z	d
d Z
dd Zdd Zdd Zdd Zdd Zdd Zdd Zdd ZeejjZdd ZdS )!ResourceFinderz4
    Resource finder for file system resources.
    java.pyc.pyo.classc             C   s.   || _ t|dd | _tjjt|dd| _d S )N
__loader____file__ )modulegetattrloaderr
   r   r   r   )r   r@   r   r   r   r      s    zResourceFinder.__init__c             C   s   t jj|S )N)r
   r   realpath)r   r   r   r   r   _adjust_path   s    zResourceFinder._adjust_pathc             C   sB   t |trd}nd}|j|}|jd| j tjj| }| j|S )N   //r   )	
isinstancer    splitinsertr   r
   r   r   rD   )r   resource_nameseppartsr"   r   r   r   
_make_path   s    

zResourceFinder._make_pathc             C   s   t jj|S )N)r
   r   r   )r   r   r   r   r   _find   s    zResourceFinder._findc             C   s
   d |j fS )N)r   )r   r   r   r   r   r      s    zResourceFinder.get_cache_infoc             C   sD   | j |}| j|sd }n&| j|r0t| |}n
t| |}||_|S )N)rM   rN   _is_directoryr5   r+   r   )r   rJ   r   r"   r   r   r   find   s    



zResourceFinder.findc             C   s   t |jdS )Nrb)r   r   )r   r   r   r   r   r,      s    zResourceFinder.get_streamc          	   C   s    t |jd
}|j S Q R X d S )NrQ   )r   r   read)r   r   r#   r   r   r   r0      s    zResourceFinder.get_bytesc             C   s   t jj|jS )N)r
   r   getsize)r   r   r   r   r   r1      s    zResourceFinder.get_sizec                s*   fdd t  fddtj|jD S )Nc                s   | dko| j  j S )N__pycache__)endswithskipped_extensions)r#   )r   r   r   allowed   s    z-ResourceFinder.get_resources.<locals>.allowedc                s   g | ]} |r|qS r   r   ).0r#   )rW   r   r   
<listcomp>   s    z0ResourceFinder.get_resources.<locals>.<listcomp>)setr
   listdirr   )r   r   r   )rW   r   r   r6      s    zResourceFinder.get_resourcesc             C   s   | j |jS )N)rO   r   )r   r   r   r   r   r4      s    zResourceFinder.is_containerc             c   s   | j |}|d k	r|g}xn|r|jd}|V  |jr|j}xH|jD ]>}|sP|}ndj||g}| j |}|jrz|j| qB|V  qBW qW d S )Nr   rF   )rP   popr4   r*   r7   r   append)r   rJ   r   ZtodoZrnamer*   new_nameZchildr   r   r   iterator   s     


zResourceFinder.iteratorN)r:   r;   r<   )r:   r;   )r%   r&   r'   r3   sysplatform
startswithrV   r   rD   rM   rN   r   rP   r,   r0   r1   r6   r4   staticmethodr
   r   r   rO   r_   r   r   r   r   r8   w   s"   r8   c                   s`   e Zd ZdZ fddZdd Zdd Zdd	 Zd
d Zdd Z	dd Z
dd Zdd Z  ZS )ZipResourceFinderz6
    Resource finder for resources in .zip files.
    c                sZ   t t| j| | jj}dt| | _t| jdr>| jj| _nt	j
| | _t| j| _d S )Nr   _files)r   rd   r   rB   archivelen
prefix_lenhasattrre   	zipimport_zip_directory_cachesortedindex)r   r@   rf   )r   r   r   r      s    zZipResourceFinder.__init__c             C   s   |S )Nr   )r   r   r   r   r   rD      s    zZipResourceFinder._adjust_pathc             C   s   || j d  }|| jkrd}nX|r:|d tjkr:|tj }tj| j|}y| j| j|}W n tk
rt   d}Y nX |stj	d|| j
j ntj	d|| j
j |S )NTr   Fz_find failed: %r %rz_find worked: %r %r)rh   re   r
   rK   bisectrm   rb   
IndexErrorloggerdebugrB   r!   )r   r   r"   ir   r   r   rN      s    


zZipResourceFinder._findc             C   s&   | j j}|jdt| d  }||fS )Nr   )rB   rf   r   rg   )r   r   r!   r   r   r   r   r      s    z ZipResourceFinder.get_cache_infoc             C   s   | j j|jS )N)rB   get_datar   )r   r   r   r   r   r0      s    zZipResourceFinder.get_bytesc             C   s   t j| j|S )N)ioBytesIOr0   )r   r   r   r   r   r,      s    zZipResourceFinder.get_streamc             C   s   |j | jd  }| j| d S )N   )r   rh   re   )r   r   r   r   r   r   r1      s    zZipResourceFinder.get_sizec             C   s   |j | jd  }|r,|d tjkr,|tj7 }t|}t }tj| j|}xV|t| jk r| j| j|sjP | j| |d  }|j	|j
tjdd  |d7 }qJW |S )Nr   r   rn   )r   rh   r
   rK   rg   rZ   ro   rm   rb   addrH   )r   r   r   Zplenr"   rs   sr   r   r   r6     s    
zZipResourceFinder.get_resourcesc             C   sj   || j d  }|r*|d tjkr*|tj7 }tj| j|}y| j| j|}W n tk
rd   d}Y nX |S )Nr   Frn   )rh   r
   rK   ro   rm   rb   rp   )r   r   rs   r"   r   r   r   rO     s    

zZipResourceFinder._is_directory)r%   r&   r'   r3   r   rD   rN   r   r0   r,   r1   r6   rO   r(   r   r   )r   r   rd      s   rd   c             C   s   |t t| < d S )N)_finder_registrytype)rB   finder_makerr   r   r   register_finder0  s    r}   c             C   s   | t krt |  }nv| tjkr$t|  tj|  }t|dd}|dkrJtdt|dd}tjt|}|dkrxtd|  ||}|t | < |S )z
    Return a resource finder for a package.
    :param package: The name of the package.
    :return: A :class:`ResourceFinder` instance for the package.
    __path__Nz8You cannot get a finder for a module, only for a packager=   zUnable to locate finder for %r)	_finder_cacher`   modules
__import__rA   r   rz   r$   r{   )packager"   r@   r   rB   r|   r   r   r   r   6  s    


r   Z	__dummy__c             C   sR   d}t j|  tjj| }tjt|}|rNt}tj	j
| d|_||_||}|S )z
    Return a resource finder for a path, which should represent a container.

    :param path: The path.
    :return: A :class:`ResourceFinder` instance for the path.
    Nr?   )pkgutilZget_importerr`   path_importer_cacher$   rz   r{   _dummy_moduler
   r   r   r>   r=   )r   r"   rB   r   r@   r   r   r   finder_for_pathR  s    
r   ).Z
__future__r   ro   ru   Zloggingr
   r   Zshutilr`   typesrj   r?   r   utilr   r   r   r   Z	getLoggerr%   rq   r.   r	   objectr)   r+   r5   r8   rd   r{   zipimporterrz   _frozen_importlib_externalZ_fiImportError_frozen_importlibSourceFileLoader
FileFinderAttributeErrorr}   r   r   
ModuleTyper   r   r   r   r   r   r   <module>   sH   
,!ZN


