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3 \�= � & @ s^ d Z dZdZdZdZdZdZdZdZddl Z ddl Z ddl Z ddl Z dd l T d d d d ddddddddddddddd d d d d d!d"d#d$d%d&d'd(d)d*d+d,d-d.d/g&Z d0d1� Zd2d � Zd3d � Zd4d � Zd5d� Zd6d� Ze jj e_ d7d � Zd8d� Zd9d� Zd:d� Zd;d� Zd<d � Zd=d � Zda da d>d � Z d?d � Z d@d � Z dAd,� Z!dBdC� Z"e j#dDkZ$dGdEd.�Z%dFd/� Z&dS )Ha� Common operations on Posix pathnames. Instead of importing this module directly, import os and refer to this module as os.path. The "os.path" name is an alias for this module on Posix systems; on other systems (e.g. Mac, Windows), os.path provides the same operations in a manner specific to that platform, and is an alias to another module (e.g. macpath, ntpath). Some of this can actually be useful on non-Posix systems too, e.g. for manipulation of the pathname component of URLs. �.z..�/�:z:/bin:/usr/binNz /dev/null� )�*�normcase�isabs�join� splitdrive�split�splitext�basename�dirname� commonprefix�getsize�getmtime�getatime�getctime�islink�exists�lexists�isdir�isfile�ismount� expanduser� expandvars�normpath�abspath�samefile� sameopenfile�samestat�curdir�pardir�sep�pathsep�defpath�altsep�extsep�devnull�realpath�supports_unicode_filenames�relpath� commonpathc C s t | t�rdS dS d S )N� /r )� isinstance�bytes)�path� r0 �!/usr/lib64/python3.6/posixpath.py�_get_sep) s r2 c C s. t j| �} t| ttf�s*tdj| jj���| S )z6Normalize case of pathname. Has no effect under Posixz2normcase() argument must be str or bytes, not '{}') �os�fspathr- r. �str� TypeError�format� __class__�__name__)�sr0 r0 r1 r 4 s c C s t j| �} t| �}| j|�S )z Test whether a path is absolute)r3 r4 r2 � startswith)r: r" r0 r0 r1 r @ s c G s� t j| �} t| �}| }yd|s,|dd� | xJtt j|�D ]:}|j|�rN|}q:| s^|j|�rh||7 }q:||| 7 }q:W W n. tttfk r� t j d| f|�� � Y nX |S )z�Join two or more pathname components, inserting '/' as needed. If any component is an absolute path, all previous path components will be discarded. An empty last part will result in a path that ends with a separator.Nr r ) r3 r4 r2 �mapr; �endswithr6 �AttributeError� BytesWarning� genericpath�_check_arg_types)�a�pr" r/ �br0 r0 r1 r K s c C s` t j| �} t| �}| j|�d }| d|� | |d� }}|rX||t|� krX|j|�}||fS )z�Split a pathname. Returns tuple "(head, tail)" where "tail" is everything after the final slash. Either part may be empty.� N)r3 r4 r2 �rfind�len�rstrip)rC r" �i�head�tailr0 r0 r1 r h s c C s6 t j| �} t| t�r d}d}nd}d}tj| |d |�S )Nr, � .r r )r3 r4 r- r. r@ � _splitext)rC r" r& r0 r0 r1 r y s c C s t j| �} | dd� | fS )zJSplit a pathname into drive and path. On Posix, drive is always empty.Nr )r3 r4 )rC r0 r0 r1 r � s c C s, t j| �} t| �}| j|�d }| |d� S )z)Returns the final component of a pathnamerE N)r3 r4 r2 rF )rC r" rI r0 r0 r1 r � s c C sN t j| �} t| �}| j|�d }| d|� }|rJ||t|� krJ|j|�}|S )z-Returns the directory component of a pathnamerE N)r3 r4 r2 rF rG rH )rC r" rI rJ r0 r0 r1 r � s c C s4 yt j| �}W n ttfk r& dS X tj|j�S )z&Test whether a path is a symbolic linkF)r3 �lstat�OSErrorr> �stat�S_ISLNK�st_mode)r/ �str0 r0 r1 r � s c C s( yt j| � W n tk r" dS X dS )zCTest whether a path exists. Returns True for broken symbolic linksFT)r3 rN rO )r/ r0 r0 r1 r � s c C s� yt j| �}W n tk r" dS X tj|j�r4dS t| t�rJt| d�}n t| d�}t |�}yt j|�}W n tk r~ dS X |j }|j }||kr�dS |j }|j }||kr�dS dS )z$Test whether a path is a mount pointFs ..z..T) r3 rN rO rP rQ rR r- r. r r( �st_dev�st_ino)r/ �s1�parent�s2�dev1�dev2�ino1�ino2r0 r0 r1 r � s. c C s4 t j| �} t| t�rd}nd}| j|�s,| S t| �}| j|d�}|dk rPt| �}|dkr�dt jkr�ddl }y|j t j � �j }W q� t k r� | S X q�t jd }nRddl }| d|� }t|t�r�t|d�}y|j|�}W n t k r� | S X |j }t| t��rt j|�}d}nd }|j|�}|| |d� �p2|S ) zOExpand ~ and ~user constructions. If user or $HOME is unknown, do nothing.� ~�~rE r �HOMEN�ASCIIr, r )r3 r4 r- r. r; r2 �findrG �environ�pwd�getpwuid�getuid�pw_dir�KeyErrorr5 �getpwnam�fsencoderH ) r/ �tilder" rI rc �userhome�name�pwent�rootr0 r0 r1 r � sB c C s\ t j| �} t| t�rVd| kr | S ts:ddl}|jd|j�atj}d}d}t t dd�}n:d| krb| S t s|ddl}|jd |j�a t j}d }d }t j }d}x�|| |�}|s�P |j d�\}}|j d �} | j|�r�| j|�r�| d d � } y.|dk�rt jt j t j| � �} n|| } W n tk �r& |}Y q�X | |d� } | d|� | } t| �}| | 7 } q�W | S )zZExpand shell variables of form $var and ${var}. Unknown variables are left unchanged.� $r Ns \$(\w+|\{[^}]*\})� {� }�environb�$z\$(\w+|\{[^}]*\})�{�}rE ���)r3 r4 r- r. � _varprogb�re�compiler` �search�getattr�_varprogrb �span�groupr; r= ri �fsdecoderg rG ) r/ rx rz �start�endrb rI �m�jrl �valuerK r0 r0 r1 r sP c C s� t j| �} t| t�r&d}d}d}d}nd}d}d}d}| |krB|S | j|�}|rr| j|d �rr| j|d � rrd }| j|�}g }xV|D ]N}|||fkr�q�||ks�| r�| s�|r�|d |kr�|j|� q�|r�|j� q�W |}|j|�} |r�|| | } | p�|S ) z0Normalize path, eliminating double slashes, etc.r, � rL s ..r � r z..� � rE rv ) r3 r4 r- r. r; r �append�popr ) r/ r" �empty�dot�dotdot�initial_slashes�comps� new_comps�compr0 r0 r1 r R s> c C s@ t j| �} t| �s8t| t�r&t j� }nt j� }t|| �} t| �S )zReturn an absolute path.) r3 r4 r r- r. �getcwdb�getcwdr r )r/ �cwdr0 r0 r1 r x s c C s* t j| �} t| dd� | i �\}}t|�S )zlReturn the canonical path of the specified filename, eliminating any symbolic links encountered in the path.Nr )r3 r4 � _joinrealpathr )�filenamer/ �okr0 r0 r1 r( � s c C s t | t�rd}d}d}n d}d}d}t|�r<|dd � }|} x�|�r|j|�\}}}| s>||krdq>||kr�| r�t| �\} }||kr�t| ||�} q>|} q>t| |�}t|�s�|} q>||kr�|| } | d k r�q>t||�dfS d ||< t| tj |�|�\} } | �s t| |�dfS | ||< q>W | d fS ) Nr, rL s ..r r z..rE FT) r- r. r � partitionr r r r� r3 �readlink) r/ �rest�seenr" r r! rl �_�newpathr� r0 r0 r1 r� � sH r� �darwinc C s� | s t d��tj| �} t| t�r.d}d}d}n d}d}d}|dkrH|}n tj|�}ynd d � t|�j|�D �}d d � t| �j|�D �}tt||g��}|gt|�| ||d� }|s�|S t |� S t t t t fk r� tjd | |� � Y nX dS ) z#Return a relative version of a pathzno path specifiedrL r, s ..r r z..Nc S s g | ] }|r|�qS r0 r0 )�.0�xr0 r0 r1 � <listcomp>� s zrelpath.<locals>.<listcomp>c S s g | ] }|r|�qS r0 r0 )r� r� r0 r0 r1 r� � s r* )� ValueErrorr3 r4 r- r. r r rG r r r6 r> r? �DeprecationWarningr@ rA ) r/ r� r r" r! � start_list� path_listrI �rel_listr0 r0 r1 r* � s0 c s2 | s t d��tttj| ��} t| d t�r4d�d� nd�d� yƇfdd�| D �}y t�fd d �| D ��\}W n t k r� t d �d �Y nX � fd d�|D �}t|�}t |�}|}x.t |�D ]"\}}||| kr�|d |� }P q�W |r�n �d d� }|�j |� S t t fk �r, tjd| �� � Y nX d S )zDGiven a sequence of path names, returns the longest common sub-path.z%commonpath() arg is an empty sequencer r, rL r r c s g | ]}|j � ��qS r0 )r )r� r/ )r" r0 r1 r� � s z commonpath.<locals>.<listcomp>c 3 s | ]}|d d� � kV qd S )NrE r0 )r� rC )r" r0 r1 � <genexpr> s z commonpath.<locals>.<genexpr>z%Can't mix absolute and relative pathsNc s g | ]}� fd d�|D ��qS )c s g | ]}|r|� kr|�qS r0 r0 )r� �c)r r0 r1 r� s z)commonpath.<locals>.<listcomp>.<listcomp>r0 )r� r: )r r0 r1 r� s r+ )r+ )r� �tupler< r3 r4 r- r. �set�min�max� enumerater r6 r> r@ rA ) �paths� split_pathsr rV rX �commonrI r� �prefixr0 )r r" r1 r+ � s6 )N)'�__doc__r r! r& r" r# r$ r% r' r3 �sysrP r@ �__all__r2 r r r r r rM r r r r r r r r| rw r r r r( r� �platformr) r* r+ r0 r0 r0 r1 �<module> sZ *25& 3 )
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