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3 �_Vj�? � ' @ sf 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$d%d&d'd(d)d*d+d,d-d.d/d0g'Z d1d2� Zd3d � Zd4d � Zd5d � Zd6d� Zd7d� Ze jj e_ d8d � Zd9d� Zd:d� Zd;d� Zd<d� Zd=d � Zd>d � Zda da d?d � Z d@d � Z dAd � Z dBdC�dDd,�Z!dEdF� Z"e j#dGkZ$dJdHd.�Z%dId/� Z&dS )Ka� 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� commonpath� ALLOW_MISSINGc C s t | t�rdS dS d S )N� /r )� isinstance�bytes)�path� r1 �!/usr/lib64/python3.6/posixpath.py�_get_sep) s r3 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__)�sr1 r1 r2 r 4 s c C s t j| �} t| �}| j|�S )z Test whether a path is absolute)r4 r5 r3 � startswith)r; r" r1 r1 r2 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 ) r4 r5 r3 �mapr< �endswithr7 �AttributeError� BytesWarning� genericpath�_check_arg_types)�a�pr" r0 �br1 r1 r2 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)r4 r5 r3 �rfind�len�rstrip)rD r" �i�head�tailr1 r1 r2 r h s c C s6 t j| �} t| t�r d}d}nd}d}tj| |d |�S )Nr- � .r r )r4 r5 r. r/ rA � _splitext)rD r" r& r1 r1 r2 r y s c C s t j| �} | dd� | fS )zJSplit a pathname into drive and path. On Posix, drive is always empty.Nr )r4 r5 )rD r1 r1 r2 r � s c C s, t j| �} t| �}| j|�d }| |d� S )z)Returns the final component of a pathnamerF N)r4 r5 r3 rG )rD r" rJ r1 r1 r2 r � s c C sN t j| �} t| �}| j|�d }| d|� }|rJ||t|� krJ|j|�}|S )z-Returns the directory component of a pathnamerF N)r4 r5 r3 rG rH rI )rD r" rJ rK r1 r1 r2 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)r4 �lstat�OSErrorr? �stat�S_ISLNK�st_mode)r0 �str1 r1 r2 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)r4 rO rP )r0 r1 r1 r2 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) r4 rO rP rQ rR rS r. r/ r r( �st_dev�st_ino)r0 �s1�parent�s2�dev1�dev2�ino1�ino2r1 r1 r2 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.� ~�~rF r �HOMEN�ASCIIr- r )r4 r5 r. r/ r< r3 �findrH �environ�pwd�getpwuid�getuid�pw_dir�KeyErrorr6 �getpwnam�fsencoderI ) r0 �tilder" rJ rd �userhome�name�pwent�rootr1 r1 r2 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+|\{[^}]*\})�{�}rF ���)r4 r5 r. r/ � _varprogb�re�compilera �search�getattr�_varprogrc �span�groupr< r> rj �fsdecoderh rH ) r0 ry r{ �start�endrc rJ �m�jrm �valuerL r1 r1 r2 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- � rM s ..r � r z..� � rF rw ) r4 r5 r. r/ r< r �append�popr ) r0 r" �empty�dot�dotdot�initial_slashes�comps� new_comps�compr1 r1 r2 r R s> c C s@ t j| �} t| �s8t| t�r&t j� }nt j� }t|| �} t| �S )zReturn an absolute path.) r4 r5 r r. r/ �getcwdb�getcwdr r )r0 �cwdr1 r1 r2 r x s F)�strictc 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 )r4 r5 � _joinrealpathr )�filenamer� r0 �okr1 r1 r2 r( � s c C s� t | t�rd}d}d}nd}d}d}tj}|tkr8t}n|rBf }nt}d } t|�rb|dd � }|} �x"|�r�|j|�\} } }| sf| |kr�qf| |kr�| r�t | �\} } | |kr�t | ||�} qf|} qft | | �} ytj | �} W n |k r� d}Y nX t j | j�}|�s | } qf| |k�rH|| } | d k �r(qf|�r:tj | � nt | |�dfS d || < t| tj| �||�\} }|�s|t | |�dfS | || < qfW | d fS ) Nr- rM s ..r r z..rF FT)r. r/ r4 r� r, �FileNotFoundErrorrP r � partitionr r rO rQ rR rS r� �readlink)r0 �restr� �seenr" r r! r� � ignored_error�maxlinksrm �_�newpathrT �is_linkr� r1 r1 r2 r� � sd 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 specifiedrM r- s ..r r z..Nc S s g | ] }|r|�qS r1 r1 )�.0�xr1 r1 r2 � <listcomp>� s zrelpath.<locals>.<listcomp>c S s g | ] }|r|�qS r1 r1 )r� r� r1 r1 r2 r� � s r* )� ValueErrorr4 r5 r. r/ r r rH r r r7 r? r@ �DeprecationWarningrA rB ) r0 r� r r" r! � start_list� path_listrJ �rel_listr1 r1 r2 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- rM r r c s g | ]}|j � ��qS r1 )r )r� r0 )r" r1 r2 r� s z commonpath.<locals>.<listcomp>c 3 s | ]}|d d� � kV qd S )NrF r1 )r� rD )r" r1 r2 � <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 r1 r1 )r� �c)r r1 r2 r� s z)commonpath.<locals>.<listcomp>.<listcomp>r1 )r� r; )r r1 r2 r� s r+ )r+ )r� �tupler= r4 r5 r. r/ �set�min�max� enumerater r7 r? rA rB ) �paths� split_pathsr rW rY �commonrJ r� �prefixr1 )r r" r2 r+ s6 )N)'�__doc__r r! r& r" r# r$ r% r' r4 �sysrQ rA �__all__r3 r r r r r rN r r r r r r r r} rx r r r r( r� �platformr) r* r+ r1 r1 r1 r2 �<module> sZ *25& F )
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