e f4 % @ s d Z d d l Z d d l Z d d l Z d d l Z d d l Td d d d d d d
d d d
d d d d d d d d d d d d d d d d d d d d! d" d# d$ d% d& d' d( g% Z d) Z d* Z d) Z d+ Z d, Z
d- Z d Z d. Z
d/ d0 Z d1 d Z d2 d Z d3 d Z d4 d Z d5 d Z e j j e _ d6 d Z d7 d
Z d8 d Z d9 d Z d: d Z d; d Z d< d Z d a d a d= d Z d> d Z d? d Z d@ d& Z! dA dB Z" e j# dC k Z$ d dD d( Z% d S)Ea 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.
N)*normcaseisabsjoin
splitdrivesplitsplitextbasenamedirname commonprefixgetsizegetmtimegetatimegetctimeislinkexistslexistsisdirisfileismount
expanduser
expandvarsnormpathabspathsamefile sameopenfilesamestatcurdirpardirseppathsepdefpathaltsepextsepdevnullrealpathsupports_unicode_filenamesrelpath.z../:z:/bin:/usr/binz /dev/nullc C s t | t r d Sd Sd S)N /r) )
isinstancebytes)path r/ ./opt/alt/python34/lib64/python3.4/posixpath.py_get_sep& s r1 c C s7 t | t t f s3 t d j | j j n | S)z6Normalize case of pathname. Has no effect under Posixz2normcase() argument must be str or bytes, not '{}')r, r- str TypeErrorformat __class____name__)sr/ r/ r0 r 1 s c C s t | } | j | S)z Test whether a path is absolute)r1
startswith)r7 r r/ r/ r0 r < s c G s t | } | } y^ xW | D]O } | j | r: | } q | sP | j | r] | | 7} q | | | 7} q WWnG t k
r t d d | f | D r t d d n Yn X| S)zJoin 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.c s s$ | ] } t | t t f Vq d S)N)r, r2 r- ).0r7 r/ r/ r0 V s zjoin..z.Can't mix strings and bytes in path componentsN)r1 r8 endswithr3 all)apr r. br/ r/ r0 r F s
c C sx t | } | j | d } | d | | | d } } | rn | | t | k rn | j | } n | | f S)zSplit a pathname. Returns tuple "(head, tail)" where "tail" is
everything after the final slash. Either part may be empty. N)r1 rfindlenrstrip)r> r iheadtailr/ r/ r0 r c s ! c C s@ t | t r d } d } n d } d } t j | | d | S)Nr+ .r) r( )r, r- genericpath _splitext)r> r r# r/ r/ r0 r s s c C s | d d | f S)zJSplit a pathname into drive and path. On Posix, drive is always
empty.Nr r/ )r> r/ r/ r0 r s c C s- t | } | j | d } | | d S)z)Returns the final component of a pathnamer@ N)r1 rA )r> r rD r/ r/ r0 r s c C sa t | } | j | d } | d | } | r] | | t | k r] | j | } n | S)z-Returns the directory component of a pathnamer@ N)r1 rA rB rC )r> r rD rE r/ r/ r0 r
s c C sB y t j | } Wn t t f k
r1 d SYn Xt j | j S)z&Test whether a path is a symbolic linkF)oslstatOSErrorAttributeErrorstatS_ISLNKst_mode)r. str/ r/ r0 r s
c C s. y t j | Wn t k
r) d SYn Xd S)zCTest whether a path exists. Returns True for broken symbolic linksFT)rJ rK rL )r. r/ r/ r0 r s
c C s y t j | } Wn t k
r+ d SYn Xt j | j rB d St | t rc t | d } n t | d } y t j | } Wn t k
r d SYn X| j } | j } | | k r d S| j
} | j
} | | k r d Sd S)z$Test whether a path is a mount pointFs ..z..T) rJ rK rL rN rO rP r, r- r st_devst_ino)r. s1parents2dev1dev2ino1ino2r/ r/ r0 r s,
c C s t | t r d } n d } | j | s1 | St | } | j | d } | d k rj t | } n | d k r d t j k r d d l } | j t j
j } q.t j d } nr d d l } | d | } t | t r t | d } n y | j
| } Wn t k
r$| SYn X| j } t | t rUt j | } d } n d } | j | } | | | d p| S)
zOExpand ~ and ~user constructions. If user or $HOME is unknown,
do nothing. ~~r@ r HOMENASCIIr+ r) )r, r- r8 r1 findrB rJ environpwdgetpwuidgetuidpw_dirr2 getpwnamKeyErrorfsencoderC ) r. tilder rD ra userhomenamepwentrootr/ r/ r0 r s:
c C s t | t rs d | k r | St sI d d l } | j d | j a n t j } d } d } t t d d } nX d | k r | St s d d l } | j d | j a n t j } d
} d } t j
} d } x| | | } | s Pn | j d \ } } | j d } | j
| rB| j | rB| d d
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r| } Yq 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+|\{[^}]*\}){}r@ )r, r- _varprogbrecompiler^ searchgetattrrJ _varprogr` spangroupr8 r; rg fsdecoderf rB ) r. rv rx startendr` rD mjrj valuerF r/ r/ r0 r
sN "
c C s^ t | t r* d } d } d } d } n d } d } d } d } | | k rR | S| j | } | r | j | d r | j | d
r d } n | j | } g } xy | D]q } | | | f k r q n | | k s| r | s| r| d | k r| j | q | r | j q q W| } | j | } | rT| | | } n | p]| S)
z0Normalize path, eliminating double slashes, etc.r+ rG s ..r) r( z.. r@ rt )r, r- r8 r appendpopr ) r. r emptydotdotdotinitial_slashescomps new_compscompr/ r/ r0 r > s< '
c C sR t | sH t | t r* t j } n t j } t | | } n t | S)zReturn an absolute path.)r r, r- rJ getcwdbgetcwdr r )r. cwdr/ r/ r0 r c s c C s, t | d d | i \ } } t | S)zlReturn the canonical path of the specified filename, eliminating any
symbolic links encountered in the path.Nr )
_joinrealpathr )filenamer. okr/ r/ r0 r% q s "c
C s t | t r$ d } d } d } n d } d } d } t | r[ | d d } | } n x?| r| j | \ } } } | s^ | | k r q^ n | | k r | r t | \ } } | | k r t | | | } q q^ | } q^ n t | | } t | s| } q^ n | | k rK| | } | d k r8q^ n t | | d f Sd | | s zrelpath..c S s g | ] } | r | q Sr/ r/ )r9 r r/ r/ r0 r s )
ValueErrorr, r- r r rB r r ) r. r~ r r r
start_list path_listrD rel_listr/ r/ r0 r' s$ ""%)&__doc__rJ sysrN rH __all__r r r# r r r! r" r$ r1 r r r r r rI r r r
r r r r rz ru r r r r% r platformr& r' r/ r/ r/ r0 sV
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