3 \0@sdZddlZddlZddlZddlZejZddddddd d d d d ddddddddgZddZ ddZ dekrdZ dZ ddl Tyddl mZejdWnek rYnXddlZyddl mZWnek rYnXddl Z eje e [ nd ekrd Z d!Z ddlTyddlmZejdWnek r>YnXddlZddlZeje e[yddlmZWnek rYnXned"eejd#<dd$lmZmZmZmZmZmZmZm Z [e d%re!Z"d&d'Z#e$Z%e#d(d)e#d*d+e#d,d-e#d.d/e#d0d1e#d2d3e#d4d5e#d6d7e#d8d9e#d:d;e#dd?e#d@dAe#dBdCe#dBdDe#dEd1e%Z&e$Z%e#d(d)e%Z'e$Z%e#dFdGe#dHd+e#dId-e#dJdKe#dLdMe%j(ee#dNdOe#dPd1e#dQd1e#dRdSe dTr$e dUr$e#dVdTe%Z)e$Z%e#d(d)e#d,d-e#d.d/e#dWdXe#dYd+e dZrte#d[d-e#d2d3e#d\d1e#d]d/e#d.d/e#dEd1e#d^d/e%Z*[%[["[#dZ+d_Z,d`Z-ddcddZ.dedfZ/dgdhZ0ejdddfdhgddjdkZ1ejdke2ehe&krFe3ehe)krFddbddmdndoZ4dpdqZ5ejdoye6Wne7k rhiZ6YnXdrdsZ8dtduZ9dvdwZ:dxdyZ;dzd{ZdddZ?ddl@mAZAGdddeAZByeCZDWne7k rddZDYnXdekrejdyeEZFWne7k rBddZFYnXdekrXejdddZGeGZ6[GdddZHe d kZIejdeIrddZJeBe6jKeJeLeJeLeDeFZM[JdddZNejdddZOeO\ZPZQ[Oe drHe d rHe drHdZRd_ZSZTejdddgddZUddZVddZWddZXddZYejddddge drpddZZddZ[ejddge drddZ\ddZ]ejddgdddZ^GdddZ_ddZ`ddZae dseaZbdeb_cGdddejdZedS)aNOS routines for NT or Posix depending on what system we're on. This exports: - all functions from posix or nt, e.g. unlink, stat, etc. - os.path is either posixpath or ntpath - os.name is either 'posix' or 'nt' - os.curdir is a string representing the current directory (always '.') - os.pardir is a string representing the parent directory (always '..') - os.sep is the (or a most common) pathname separator ('/' or '\\') - os.extsep is the extension separator (always '.') - os.altsep is the alternate pathname separator (None or '/') - os.pathsep is the component separator used in $PATH etc - os.linesep is the line separator in text files ('\r' or '\n' or '\r\n') - os.defpath is the default search path for executables - os.devnull is the file path of the null device ('/dev/null', etc.) Programs that import and use 'os' stand a better chance of being portable between different platforms. Of course, they must then only use functions that are defined by all platforms (e.g., unlink and opendir), and leave all pathname manipulation to os.path (e.g., split and join). NaltsepcurdirpardirseppathseplinesepdefpathnamepathdevnullSEEK_SETSEEK_CURSEEK_ENDfsencodefsdecode get_exec_pathfdopenpopenextsepcCs |tkS)N)globals)r r/usr/lib64/python3.6/os.py_exists%src Cs2y t|jStk r,ddt|DSXdS)NcSsg|]}|ddkr|qS)r_r).0nrrr ,sz%_get_exports_list..)list__all__AttributeErrordir)modulerrr_get_exports_list(s r"posix )*)_exitr&)_have_functionsntz zno os specific module foundzos.path)rrrrrrrr r'cCs"|tkr|tkrtjt|dS)N)_globalsr'_setadd)strfnrrr_adddsr.HAVE_FACCESSATaccess HAVE_FCHMODATchmod HAVE_FCHOWNATchown HAVE_FSTATATstatHAVE_FUTIMESATutime HAVE_LINKATlink HAVE_MKDIRATmkdir HAVE_MKFIFOATmkfifo HAVE_MKNODATmknod HAVE_OPENATopenHAVE_READLINKATreadlink HAVE_RENAMEATrenameHAVE_SYMLINKATsymlink HAVE_UNLINKATunlinkrmdirHAVE_UTIMENSAT HAVE_FCHDIRchdir HAVE_FCHMOD HAVE_FCHOWNHAVE_FDOPENDIRlistdir HAVE_FEXECVEexecveHAVE_FTRUNCATEtruncate HAVE_FUTIMENS HAVE_FUTIMESHAVE_FPATHCONFpathconfstatvfsfstatvfs HAVE_FSTATVFS HAVE_LCHFLAGSZchflags HAVE_LCHMODlchown HAVE_LCHOWN HAVE_LUTIMES HAVE_LSTATZ MS_WINDOWSFcCstj|\}}|s tj|\}}|r~|r~tj| r~yt|||Wntk rXYnXt}t|trrttd}||kr~dSyt||Wn(t k r| stj | rYnXdS)amakedirs(name [, mode=0o777][, exist_ok=False]) Super-mkdir; create a leaf directory and all intermediate ones. Works like mkdir, except that any intermediate path segment (not just the rightmost) will be created if it does not exist. If the target directory already exists, raise an OSError if exist_ok is False. Otherwise no exception is raised. This is recursive. ASCIIN) r splitexistsmakedirsFileExistsErrorr isinstancebytesr<OSErrorisdir)r modeexist_okheadtailcdirrrrrjs$   rjc Cslt|tj|\}}|s(tj|\}}x>|rf|rfy t|Wntk rTPYnXtj|\}}q*WdS)aremovedirs(name) Super-rmdir; remove a leaf directory and all empty intermediate ones. Works like rmdir except that, if the leaf directory is successfully removed, directories corresponding to rightmost path segments will be pruned away until either the whole path is consumed or an error occurs. Errors during this latter phase are ignored -- they generally mean that a directory was not empty. N)rKr rhrn)r rrrsrrr removedirss   ruc Csptj|\}}|r*|r*tj| r*t|t||tj|\}}|rl|rly t|Wntk rjYnXdS)a<renames(old, new) Super-rename; create directories as necessary and delete any left empty. Works like rename, except creation of any intermediate directories needed to make the new pathname good is attempted first. After the rename, directories corresponding to rightmost path segments of the old name will be pruned until either the whole path is consumed or a nonempty directory is found. Note: this function can fail with the new directory structure made if you lack permissions needed to unlink the leaf directory or file. N)r rhrirjrFrurn)oldnewrrrsrrrrenamess  rxTc6cst|}g}g}g}y t|}Wn0tk rP}z|dk rB||dSd}~XnX|xy(y t|} Wntk rPYnXWn0tk r}z|dk r||dSd}~XnXy | j} Wntk rd} YnX| r|j| jn |j| j| r^| r^|rd} n.y | j} Wntk r8d} YnX| } | r^|j| j q^WWdQRX|r|||fVt j t j } }xp|D]6}|||}|s| | rt ||||EdHqWn0x"|D]}t ||||EdHqW|||fVdS)a Directory tree generator. For each directory in the directory tree rooted at top (including top itself, but excluding '.' and '..'), yields a 3-tuple dirpath, dirnames, filenames dirpath is a string, the path to the directory. dirnames is a list of the names of the subdirectories in dirpath (excluding '.' and '..'). filenames is a list of the names of the non-directory files in dirpath. Note that the names in the lists are just names, with no path components. To get a full path (which begins with top) to a file or directory in dirpath, do os.path.join(dirpath, name). If optional arg 'topdown' is true or not specified, the triple for a directory is generated before the triples for any of its subdirectories (directories are generated top down). If topdown is false, the triple for a directory is generated after the triples for all of its subdirectories (directories are generated bottom up). When topdown is true, the caller can modify the dirnames list in-place (e.g., via del or slice assignment), and walk will only recurse into the subdirectories whose names remain in dirnames; this can be used to prune the search, or to impose a specific order of visiting. Modifying dirnames when topdown is false is ineffective, since the directories in dirnames have already been generated by the time dirnames itself is generated. No matter the value of topdown, the list of subdirectories is retrieved before the tuples for the directory and its subdirectories are generated. By default errors from the os.scandir() call are ignored. If optional arg 'onerror' is specified, it should be a function; it will be called with one argument, an OSError instance. It can report the error to continue with the walk, or raise the exception to abort the walk. Note that the filename is available as the filename attribute of the exception object. By default, os.walk does not follow symbolic links to subdirectories on systems that support them. In order to get this functionality, set the optional argument 'followlinks' to true. Caution: if you pass a relative pathname for top, don't change the current working directory between resumptions of walk. walk never changes the current directory, and assumes that the client doesn't either. Example: import os from os.path import join, getsize for root, dirs, files in os.walk('python/Lib/email'): print(root, "consumes", end="") print(sum([getsize(join(root, name)) for name in files]), end="") print("bytes in", len(files), "non-directory files") if 'CVS' in dirs: dirs.remove('CVS') # don't visit CVS directories NFT) fspathscandirrnnext StopIterationis_dirappendr is_symlinkr islinkjoinwalk)toptopdownonerror followlinksdirsnondirs walk_dirs scandir_iterrorentryr} walk_intorrrdirnamenew_pathrrrrs`:             r.)follow_symlinksdir_fdc cst|t st|d r t|}t|d|d}t|t|d}z:|s^tj|j rtt j |t|rtt |||||EdHWdt |XdS)aDirectory tree generator. This behaves exactly like walk(), except that it yields a 4-tuple dirpath, dirnames, filenames, dirfd `dirpath`, `dirnames` and `filenames` are identical to walk() output, and `dirfd` is a file descriptor referring to the directory `dirpath`. The advantage of fwalk() over walk() is that it's safe against symlink races (when follow_symlinks is False). If dir_fd is not None, it should be a file descriptor open to a directory, and top should be relative; top will then be relative to that directory. (dir_fd is always supported for fwalk.) Caution: Since fwalk() yields file descriptors, those are only valid until the next iteration step, so you should dup() them if you want to keep them for a longer period. Example: import os for root, dirs, files, rootfd in os.fwalk('python/Lib/email'): print(root, "consumes", end="") print(sum([os.stat(name, dir_fd=rootfd).st_size for name in files]), end="") print("bytes in", len(files), "non-directory files") if 'CVS' in dirs: dirs.remove('CVS') # don't visit CVS directories __index__F)rr)rN)rlinthasattrryr6rBO_RDONLYstS_ISDIRst_moder samestat_fwalkclose)rrrrrorig_sttopfdrrrfwalks!rc cs|t|}gg}}x|D]}y.tjt||djr>|j|n |j|Wqtk ry$tjt||ddjr||j|Wntk rwYnXYqXqW|r||||fVx|D]}y t|||d} t|t |d} Wn8tk r} z|dk r|| wWYdd} ~ XnXz>|s0t j | t| rRt j ||} t | | |||EdHWdt| XqW|sx||||fVdS)N)rF)rr)rRrrr6rr~rnS_ISLNKrBrr rrrr) rtoppathrrrnamesrrr rdirfderrdirpathrrrrs<      rcGst||dS)zpexecl(file, *args) Execute the executable file with argument list args, replacing the current process. N)execv)fileargsrrrexecl srcGs |d}t||dd|dS)zexecle(file, *args, env) Execute the executable file with argument list args and environment env, replacing the current process. rdNr)rT)rrenvrrrexeclesrcGst||dS)zexeclp(file, *args) Execute the executable file (which is searched for along $PATH) with argument list args, replacing the current process. N)execvp)rrrrrexeclpsrcGs |d}t||dd|dS)zexeclpe(file, *args, env) Execute the executable file (which is searched for along $PATH) with argument list args and environment env, replacing the current process. rdNrr)execvpe)rrrrrrexeclpe srcCst||dS)zexecvp(file, args) Execute the executable file (which is searched for along $PATH) with argument list args, replacing the current process. args may be a list or tuple of strings. N)_execvpe)rrrrrr)srcCst|||dS)zexecvpe(file, args, env) Execute the executable file (which is searched for along $PATH) with argument list args and environment env , replacing the current process. args may be a list or tuple of strings. N)r)rrrrrrr1srcCs|dk rt}||f}nt}|f}t}tj|\}}|rH||f|dSd}}d} t|} tdkrvt|}tt| } x| D]~} tj | |} y|| f|Wq|t k r} z>| }t j d}| j t jkr| j t jkr|dkr| }|} WYdd} ~ Xq|Xq|W|r|j| |j|dS)Nr(re)rTrenvironr rhrr rmaprrnsysexc_infoerrnoENOENTENOTDIRwith_traceback)rrr exec_funcargrestrrrslast_exc saved_excsaved_tb path_listr fullnameetbrrrr<s<      rcCsddl}|dkrt}|j|jdty|jd}Wntk rPd}YnXtry |d}Wnttfk rzYnX|dk rt d|}|dk rt |t rt |}WdQRX|dkrt }|jtS)zReturns the sequence of directories that will be searched for the named executable (similar to a shell) when launching a process. *env* must be an environment variable dict or None. If *env* is None, os.environ will be used. rNignorePATHsPATHz*env cannot contain 'PATH' and b'PATH' keys)warningsrcatch_warnings simplefilter BytesWarningget TypeErrorsupports_bytes_environKeyError ValueErrorrlrmrrrhr)rrr path_listbrrrr_s.     )MutableMappingc@sTeZdZddZddZddZddZd d Zd d Zd dZ ddZ ddZ dS)_EnvironcCs.||_||_||_||_||_||_||_dS)N) encodekey decodekey encodevalue decodevalueputenvunsetenv_data)selfdatarrrrrrrrr__init__sz_Environ.__init__c Cs>y|j|j|}Wntk r2t|dYnX|j|S)N)rrrr)rkeyvaluerrr __getitem__s z_Environ.__getitem__cCs.|j|}|j|}|j||||j|<dS)N)rrrr)rrrrrr __setitem__s   z_Environ.__setitem__c CsD|j|}|j|y |j|=Wntk r>t|dYnXdS)N)rrrr)rr encodedkeyrrr __delitem__s    z_Environ.__delitem__ccs(t|j}x|D]}|j|VqWdS)N)rrr)rkeysrrrr__iter__s  z_Environ.__iter__cCs t|jS)N)lenr)rrrr__len__sz_Environ.__len__cs$djdjfddjjDS)Nzenviron({{{}}})z, c3s*|]"\}}djj|j|VqdS)z {!r}: {!r}N)formatrr)rrr)rrr sz$_Environ.__repr__..)rrritems)rr)rr__repr__s z_Environ.__repr__cCst|S)N)dict)rrrrcopysz _Environ.copycCs||kr|||<||S)Nr)rrrrrr setdefaultsz_Environ.setdefaultN) __name__ __module__ __qualname__rrrrrrrrrrrrrrs  rcCsdS)Nr)rrrrrsrrcCs t|dS)N)_putenv)rrrrrsrcstdkrLdd}|t}fdd}i}xJtjD]\}}||||<q2Wn(tjfddfdd }}t}t||||ttS) Nr(cSs t|tstdt|j|S)Nzstr expected, not %s)rlr,rtyper)rrrr check_strs z!_createenviron..check_strcs |jS)N)upper)r)encoderrrsz!_createenviron..encodekeycs(t|tstdt|j|jdS)Nzstr expected, not %ssurrogateescape)rlr,rrrr)r)encodingrrrs z_createenviron..encodecs |jdS)Nr)decode)r)rrrrsz_createenviron..decode) r r,rrrgetfilesystemencodingrr _unsetenv)rrrrrrr)rrr_createenvirons"   rcCs tj||S)zGet an environment variable, return None if it doesn't exist. The optional second argument can specify an alternate default. key, default and the result are str.)rr)rdefaultrrrgetenvsrrcCs t|tstdt|j|S)Nzbytes expected, not %s)rlrmrrr)rrrr _check_bytess rcCs tj||S)zGet an environment variable, return None if it doesn't exist. The optional second argument can specify an alternate default. key, default and the result are bytes.)environbr)rrrrrgetenvbsrrcs4tjtjfdd}fdd}||fS)Ncs&t|}t|tr|jS|SdS)aEncode filename (an os.PathLike, bytes, or str) to the filesystem encoding with 'surrogateescape' error handler, return bytes unchanged. On Windows, use 'strict' error handler if the file system encoding is 'mbcs' (which is the default encoding). N)ryrlr,r)filename)rerrorsrrrs  z_fscodec..fsencodecs&t|}t|tr|jS|SdS)aDecode filename (an os.PathLike, bytes, or str) from the filesystem encoding with 'surrogateescape' error handler, return str unchanged. On Windows, use 'strict' error handler if the file system encoding is 'mbcs' (which is the default encoding). N)ryrlrmr)r)rrrrr&s  z_fscodec..fsdecode)rrgetfilesystemencodeerrors)rrr)rrr_fscodecs   rforkspawnvrP_WAITP_NOWAIT P_NOWAITOc Cst|ttfstd| s&|d r.tdt}|sty$|dkrN|||n ||||WqtdYqXnV|tkr|SxHt|d\}}t |rqqt |rt | St |rt |StdqWdS)Nzargv must be a tuple or a listrz"argv first element cannot be emptyz"Not stopped, signaled or exited???)rltuplerrrrr&rwaitpid WIFSTOPPED WIFSIGNALEDWTERMSIG WIFEXITED WEXITSTATUSrn)rprrrfuncpidwpidstsrrr _spawnvefCs.  rcCst|||dtS)aspawnv(mode, file, args) -> integer Execute file with arguments from args in a subprocess. If mode == P_NOWAIT return the pid of the process. If mode == P_WAIT return the process's exit code if it exits normally; otherwise return -SIG, where SIG is the signal that killed it. N)rr)rprrrrrrbscCst||||tS)a:spawnve(mode, file, args, env) -> integer Execute file with arguments from args in a subprocess with the specified environment. If mode == P_NOWAIT return the pid of the process. If mode == P_WAIT return the process's exit code if it exits normally; otherwise return -SIG, where SIG is the signal that killed it. )rrT)rprrrrrrspawnveksrcCst|||dtS)a8spawnvp(mode, file, args) -> integer Execute file (which is looked for along $PATH) with arguments from args in a subprocess. If mode == P_NOWAIT return the pid of the process. If mode == P_WAIT return the process's exit code if it exits normally; otherwise return -SIG, where SIG is the signal that killed it. N)rr)rprrrrrspawnvpwsrcCst||||tS)a\spawnvpe(mode, file, args, env) -> integer Execute file (which is looked for along $PATH) with arguments from args in a subprocess with the supplied environment. If mode == P_NOWAIT return the pid of the process. If mode == P_WAIT return the process's exit code if it exits normally; otherwise return -SIG, where SIG is the signal that killed it. )rr)rprrrrrrspawnvpesrcGs t|||S)aspawnl(mode, file, *args) -> integer Execute file with arguments from args in a subprocess. If mode == P_NOWAIT return the pid of the process. If mode == P_WAIT return the process's exit code if it exits normally; otherwise return -SIG, where SIG is the signal that killed it. )r)rprrrrrspawnlsrcGs|d}t|||dd|S)a:spawnle(mode, file, *args, env) -> integer Execute file with arguments from args in a subprocess with the supplied environment. If mode == P_NOWAIT return the pid of the process. If mode == P_WAIT return the process's exit code if it exits normally; otherwise return -SIG, where SIG is the signal that killed it. rdNrr)r)rprrrrrrspawnlesrcGs t|||S)aWspawnlp(mode, file, *args) -> integer Execute file (which is looked for along $PATH) with arguments from args in a subprocess with the supplied environment. If mode == P_NOWAIT return the pid of the process. If mode == P_WAIT return the process's exit code if it exits normally; otherwise return -SIG, where SIG is the signal that killed it. )r)rprrrrrspawnlpsrcGs|d}t|||dd|S)a]spawnlpe(mode, file, *args, env) -> integer Execute file (which is looked for along $PATH) with arguments from args in a subprocess with the supplied environment. If mode == P_NOWAIT return the pid of the process. If mode == P_WAIT return the process's exit code if it exits normally; otherwise return -SIG, where SIG is the signal that killed it. rdNrr)r)rprrrrrrspawnlpesrrcCst|tstdt||d kr.td||dks>|dkrFtdddl}ddl}|dkr|j|d|j|d}t |j |j |S|j|d|j|d }t |j |j |SdS) Nz&invalid cmd type (%s, expected string)rwzinvalid mode %rrz+popen() does not support unbuffered streamsT)shellstdoutbufsize)r stdinr")rr) rlr,rrr subprocessioPopenPIPE _wrap_close TextIOWrapperr!r#)cmdrp bufferingr$r%procrrrrs$  c@s<eZdZddZddZddZddZd d Zd d Zd S)r(cCs||_||_dS)N)_stream_proc)rstreamr,rrrrsz_wrap_close.__init__cCs8|jj|jj}|dkr dStdkr,|S|d>SdS)Nrr()r-rr.waitr )r returncoderrrrs  z_wrap_close.closecCs|S)Nr)rrrr __enter__sz_wrap_close.__enter__cGs |jdS)N)r)rrrrr__exit__sz_wrap_close.__exit__cCs t|j|S)N)getattrr-)rr rrr __getattr__sz_wrap_close.__getattr__cCs t|jS)N)iterr-)rrrrrsz_wrap_close.__iter__N) rrrrrr3r4r6rrrrrr(s  r(cOs4t|tstdt|ddl}|j|f||S)Nz&invalid fd type (%s, expected integer)r)rlrrrr%rB)fdrkwargsr%rrrrs c Cst|ttfr|St|}y|j|}Wn0tk rXt|drFntd|jYnXt|ttfrl|Stdj |jt|jdS)aaReturn the path representation of a path-like object. If str or bytes is passed in, it is returned unchanged. Otherwise the os.PathLike interface is used to get the path representation. If the path representation is not str or bytes, TypeError is raised. If the provided path is not str, bytes, or os.PathLike, TypeError is raised. __fspath__z/expected str, bytes or os.PathLike object, not z7expected {}.__fspath__() to return str or bytes, not {}N) rlr,rmrr:rrrrr)r path_type path_reprrrr_fspaths r=ryc@s*eZdZdZejddZeddZdS)PathLikezCAbstract base class for implementing the file system path protocol.cCstdS)z9Return the file system path representation of the object.N)NotImplementedError)rrrrr:&szPathLike.__fspath__cCs t|dS)Nr:)r)clssubclassrrr__subclasshook__+szPathLike.__subclasshook__N) rrr__doc__abcabstractmethodr: classmethodrBrrrrr>"sr>)rfF)TNF)rTN)N)N)N)rr)N)rrr)rr)frCrDrrr6rbuiltin_module_namesZ_namesrrr"r rr#r&r~ ImportError posixpathr r'extendr(ZntpathmodulesZos.pathrrrrrrrr rr)r.setr*supports_dir_fdsupports_effective_idsr+ supports_fdsupports_follow_symlinksr r rrjrurxrrBrRrrr NameErrorrrrrrrrr_collections_abcrrrrrrrrrrrrmrrrrrrrr rrrrrrrrrrr(rr=ryrABCr>rrrrs|       (                                             ./     # - 7