???<!-- GIF89;a -->
123123123123
.....................................................................................................................................???<!-- GIF89;a -->
123123123123
.....................................................................................................................................3

  \                 @   s6   d dl Z e jZG dd de jZG dd de jZdS )    Nc               @   s,   e Zd Zdd Zdd Zdd Zdd Zd	S )

BaseStreamc             C   s   | j rtdd S )NzI/O operation on closed file)closed
ValueError)self r   $/usr/lib64/python3.6/_compression.py_check_not_closed   s    zBaseStream._check_not_closedc             C   s   | j  stjdd S )NzFile not open for reading)readableioUnsupportedOperation)r   r   r   r   _check_can_read   s    zBaseStream._check_can_readc             C   s   | j  stjdd S )NzFile not open for writing)writabler
   r   )r   r   r   r   _check_can_write   s    zBaseStream._check_can_writec             C   s(   | j  stjd| j s$tjdd S )Nz3Seeking is only supported on files open for readingz3The underlying file object does not support seeking)r	   r
   r   seekable)r   r   r   r   _check_can_seek   s    
zBaseStream._check_can_seekN)__name__
__module____qualname__r   r   r   r   r   r   r   r   r   	   s   r   c                   sh   e Zd Zdd Zf fddZ fddZdd Zd	d
 ZdddZdd Z	e
jfddZdd Z  ZS )DecompressReaderc             C   s   dS )NTr   )r   r   r   r   r	   $   s    zDecompressReader.readablec             K   s>   || _ d| _d| _d| _|| _|| _| jf | j| _|| _d S )NFr      )_fp_eof_pos_size_decomp_factory_decomp_args_decompressor_trailing_error)r   fpZdecomp_factoryZtrailing_errorZdecomp_argsr   r   r   __init__'   s    zDecompressReader.__init__c                s   d | _ t j S )N)r   superclose)r   )	__class__r   r   r"   ;   s    zDecompressReader.closec             C   s
   | j j S )N)r   r   )r   r   r   r   r   ?   s    zDecompressReader.seekablec             C   sP   t |:}|jd$}| jt|}||d t|< W d Q R X W d Q R X t|S )NB)
memoryviewcastreadlen)r   bZviewZ	byte_viewdatar   r   r   readintoB   s    $zDecompressReader.readintor   c             C   s   |dk r| j  S | s| jr dS d }x| jjr| jjp@| jjt}|sHP | jf | j	| _y| jj
||}W q | jk
r   P Y qX n4| jjr| jjt}|stdnd}| jj
||}|r&P q&W |sd| _| j| _dS |  jt|7  _|S )Nr       zACompressed file ended before the end-of-stream marker was reachedT)readallr   r   eofZunused_datar   r'   BUFFER_SIZEr   r   Z
decompressr   Zneeds_inputEOFErrorr   r   r(   )r   sizer*   Zrawblockr   r   r   r'   H   s>    


zDecompressReader.readc             C   s,   | j jd d| _d| _| jf | j| _d S )Nr   F)r   seekr   r   r   r   r   )r   r   r   r   _rewindr   s    zDecompressReader._rewindc             C   s   |t jkrnV|t jkr"| j| }n@|t jkrT| jdk rHx| jt jrFq8W | j| }ntdj	||| jk rv| j
  n
|| j8 }x0|dkr| jtt j|}|sP |t|8 }qW | jS )Nr   zInvalid value for whence: {})r
   SEEK_SETSEEK_CURr   SEEK_ENDr   r'   DEFAULT_BUFFER_SIZEr   formatr3   minr(   )r   offsetwhencer*   r   r   r   r2   x   s&    







zDecompressReader.seekc             C   s   | j S )N)r   )r   r   r   r   tell   s    zDecompressReader.tellr   )r   )r   r   r   r	   r    r"   r   r+   r'   r3   r
   r4   r2   r<   __classcell__r   r   )r#   r   r   !   s   
*r   )r
   r7   r/   BufferedIOBaser   	RawIOBaser   r   r   r   r   <module>   s   