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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.
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W| S( s� Join two or more pathname components, inserting '/' as needed.
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c C s` | j d � d } | | | | } } | rV | d t | � k rV | j d � } n | | f S( s� Split a pathname. Returns tuple "(head, tail)" where "tail" is
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r0 t SXt j | j � S( s& Test whether a path is a symbolic link( t ost lstatt errort AttributeErrort Falset statt S_ISLNKt st_mode( R1 t st( ( s. /opt/alt/python27/lib64/python2.7/posixpath.pyR � s
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rX t SX| j } | j } | | k r{ t S| j } | j } | | k r� t St S( s$ Test whether a path is a mount points ..(
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| | | � qU qU Wd S( sI Directory tree walk with callback function.
For each directory in the directory tree rooted at top (including top
itself, but excluding '.' and '..'), call func(arg, dirname, fnames).
dirname is the name of the directory, and fnames a list of the names of
the files and subdirectories in dirname (excluding '.' and '..'). func
may modify the fnames list in-place (e.g. via del or slice assignment),
and walk will only recurse into the subdirectories whose names remain in
fnames; this can be used to implement a filter, or to impose a specific
order of visiting. No semantics are defined for, or required of, arg,
beyond that arg is always passed to func. It can be used, e.g., to pass
a filename pattern, or a mutable object designed to accumulate
statistics. Passing None for arg is common.s4 In 3.x, os.path.walk is removed in favor of os.walk.t
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r� | SX| j } | j d � } | | | pd S( sO Expand ~ and ~user constructions. If user or $HOME is unknown,
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c C s/ t | t � r d n d \ } } | d k r1 | S| j d � } | rn | j d � rn | j d � rn d } n | j d � } g } xs | D]k } | d
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d k r� | j | � q� | r� | j � q� q� W| } | j | � } | r%| | | } n | p.| S( s0 Normalize path, eliminating double slashes, etc.u /u .R) R( R- s //s ///i s ..i����( u /u .( R) R( ( R- R( ( Rk R R, R t appendt popR ( R1 t slasht dott initial_slashest compst new_compst comp( ( s. /opt/alt/python27/lib64/python2.7/posixpath.pyR P s, !
c C sR t | � sH t | t � r* t j � } n t j � } t | | � } n t | � S( s Return an absolute path.( R Rk R R; t getcwdut getcwdR R ( R1 t cwd( ( s. /opt/alt/python27/lib64/python2.7/posixpath.pyR m s c C s" t d | i � \ } } t | � S( sl Return the canonical path of the specified filename, eliminating any
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