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� n��fc @ s` d Z d d l Z e j d k Z d d l Z d d l Z d d l Z d d l Z d d l Z d d l Z d e f d � � YZ e r� d d l Z d d l Z d d l Z d f d � � YZ d f d � � YZ nE d d l Z e e d � Z d d l Z d d l Z e e d d � Z d d d d d d d g Z e r�d d l m Z m Z m Z m Z m Z m Z m Z m Z e j! d d d d d d d d g � n y e j" d � Z# Wn d Z# n Xg Z$ d � Z% d Z& d Z' d � Z( d! � Z) d" � Z* d# � Z+ d$ � Z, d% � Z- d e. f d& � � YZ/ d' � Z0 d( � Z1 e2 d) k r\e rRe1 � n e0 � n d S(* s�0 subprocess - Subprocesses with accessible I/O streams This module allows you to spawn processes, connect to their input/output/error pipes, and obtain their return codes. This module intends to replace several other, older modules and functions, like: os.system os.spawn* os.popen* popen2.* commands.* Information about how the subprocess module can be used to replace these modules and functions can be found below. Using the subprocess module =========================== This module defines one class called Popen: class Popen(args, bufsize=0, executable=None, stdin=None, stdout=None, stderr=None, preexec_fn=None, close_fds=False, shell=False, cwd=None, env=None, universal_newlines=False, startupinfo=None, creationflags=0): Arguments are: args should be a string, or a sequence of program arguments. The program to execute is normally the first item in the args sequence or string, but can be explicitly set by using the executable argument. On UNIX, with shell=False (default): In this case, the Popen class uses os.execvp() to execute the child program. args should normally be a sequence. A string will be treated as a sequence with the string as the only item (the program to execute). On UNIX, with shell=True: If args is a string, it specifies the command string to execute through the shell. If args is a sequence, the first item specifies the command string, and any additional items will be treated as additional shell arguments. On Windows: the Popen class uses CreateProcess() to execute the child program, which operates on strings. If args is a sequence, it will be converted to a string using the list2cmdline method. Please note that not all MS Windows applications interpret the command line the same way: The list2cmdline is designed for applications using the same rules as the MS C runtime. bufsize, if given, has the same meaning as the corresponding argument to the built-in open() function: 0 means unbuffered, 1 means line buffered, any other positive value means use a buffer of (approximately) that size. A negative bufsize means to use the system default, which usually means fully buffered. The default value for bufsize is 0 (unbuffered). stdin, stdout and stderr specify the executed programs' standard input, standard output and standard error file handles, respectively. Valid values are PIPE, an existing file descriptor (a positive integer), an existing file object, and None. PIPE indicates that a new pipe to the child should be created. With None, no redirection will occur; the child's file handles will be inherited from the parent. Additionally, stderr can be STDOUT, which indicates that the stderr data from the applications should be captured into the same file handle as for stdout. If preexec_fn is set to a callable object, this object will be called in the child process just before the child is executed. If close_fds is true, all file descriptors except 0, 1 and 2 will be closed before the child process is executed. if shell is true, the specified command will be executed through the shell. If cwd is not None, the current directory will be changed to cwd before the child is executed. If env is not None, it defines the environment variables for the new process. If universal_newlines is true, the file objects stdout and stderr are opened as a text files, but lines may be terminated by any of '\n', the Unix end-of-line convention, '\r', the Macintosh convention or '\r\n', the Windows convention. All of these external representations are seen as '\n' by the Python program. Note: This feature is only available if Python is built with universal newline support (the default). Also, the newlines attribute of the file objects stdout, stdin and stderr are not updated by the communicate() method. The startupinfo and creationflags, if given, will be passed to the underlying CreateProcess() function. They can specify things such as appearance of the main window and priority for the new process. (Windows only) This module also defines some shortcut functions: call(*popenargs, **kwargs): Run command with arguments. Wait for command to complete, then return the returncode attribute. The arguments are the same as for the Popen constructor. Example: retcode = call(["ls", "-l"]) check_call(*popenargs, **kwargs): Run command with arguments. Wait for command to complete. If the exit code was zero then return, otherwise raise CalledProcessError. The CalledProcessError object will have the return code in the returncode attribute. The arguments are the same as for the Popen constructor. Example: check_call(["ls", "-l"]) check_output(*popenargs, **kwargs): Run command with arguments and return its output as a byte string. If the exit code was non-zero it raises a CalledProcessError. The CalledProcessError object will have the return code in the returncode attribute and output in the output attribute. The arguments are the same as for the Popen constructor. Example: output = check_output(["ls", "-l", "/dev/null"]) Exceptions ---------- Exceptions raised in the child process, before the new program has started to execute, will be re-raised in the parent. Additionally, the exception object will have one extra attribute called 'child_traceback', which is a string containing traceback information from the childs point of view. The most common exception raised is OSError. This occurs, for example, when trying to execute a non-existent file. Applications should prepare for OSErrors. A ValueError will be raised if Popen is called with invalid arguments. check_call() and check_output() will raise CalledProcessError, if the called process returns a non-zero return code. Security -------- Unlike some other popen functions, this implementation will never call /bin/sh implicitly. This means that all characters, including shell metacharacters, can safely be passed to child processes. Popen objects ============= Instances of the Popen class have the following methods: poll() Check if child process has terminated. Returns returncode attribute. wait() Wait for child process to terminate. Returns returncode attribute. communicate(input=None) Interact with process: Send data to stdin. Read data from stdout and stderr, until end-of-file is reached. Wait for process to terminate. The optional input argument should be a string to be sent to the child process, or None, if no data should be sent to the child. communicate() returns a tuple (stdout, stderr). Note: The data read is buffered in memory, so do not use this method if the data size is large or unlimited. The following attributes are also available: stdin If the stdin argument is PIPE, this attribute is a file object that provides input to the child process. Otherwise, it is None. stdout If the stdout argument is PIPE, this attribute is a file object that provides output from the child process. Otherwise, it is None. stderr If the stderr argument is PIPE, this attribute is file object that provides error output from the child process. Otherwise, it is None. pid The process ID of the child process. returncode The child return code. A None value indicates that the process hasn't terminated yet. A negative value -N indicates that the child was terminated by signal N (UNIX only). Replacing older functions with the subprocess module ==================================================== In this section, "a ==> b" means that b can be used as a replacement for a. Note: All functions in this section fail (more or less) silently if the executed program cannot be found; this module raises an OSError exception. In the following examples, we assume that the subprocess module is imported with "from subprocess import *". Replacing /bin/sh shell backquote --------------------------------- output=`mycmd myarg` ==> output = Popen(["mycmd", "myarg"], stdout=PIPE).communicate()[0] Replacing shell pipe line ------------------------- output=`dmesg | grep hda` ==> p1 = Popen(["dmesg"], stdout=PIPE) p2 = Popen(["grep", "hda"], stdin=p1.stdout, stdout=PIPE) output = p2.communicate()[0] Replacing os.system() --------------------- sts = os.system("mycmd" + " myarg") ==> p = Popen("mycmd" + " myarg", shell=True) pid, sts = os.waitpid(p.pid, 0) Note: * Calling the program through the shell is usually not required. * It's easier to look at the returncode attribute than the exitstatus. A more real-world example would look like this: try: retcode = call("mycmd" + " myarg", shell=True) if retcode < 0: print >>sys.stderr, "Child was terminated by signal", -retcode else: print >>sys.stderr, "Child returned", retcode except OSError, e: print >>sys.stderr, "Execution failed:", e Replacing os.spawn* ------------------- P_NOWAIT example: pid = os.spawnlp(os.P_NOWAIT, "/bin/mycmd", "mycmd", "myarg") ==> pid = Popen(["/bin/mycmd", "myarg"]).pid P_WAIT example: retcode = os.spawnlp(os.P_WAIT, "/bin/mycmd", "mycmd", "myarg") ==> retcode = call(["/bin/mycmd", "myarg"]) Vector example: os.spawnvp(os.P_NOWAIT, path, args) ==> Popen([path] + args[1:]) Environment example: os.spawnlpe(os.P_NOWAIT, "/bin/mycmd", "mycmd", "myarg", env) ==> Popen(["/bin/mycmd", "myarg"], env={"PATH": "/usr/bin"}) Replacing os.popen* ------------------- pipe = os.popen("cmd", mode='r', bufsize) ==> pipe = Popen("cmd", shell=True, bufsize=bufsize, stdout=PIPE).stdout pipe = os.popen("cmd", mode='w', bufsize) ==> pipe = Popen("cmd", shell=True, bufsize=bufsize, stdin=PIPE).stdin (child_stdin, child_stdout) = os.popen2("cmd", mode, bufsize) ==> p = Popen("cmd", shell=True, bufsize=bufsize, stdin=PIPE, stdout=PIPE, close_fds=True) (child_stdin, child_stdout) = (p.stdin, p.stdout) (child_stdin, child_stdout, child_stderr) = os.popen3("cmd", mode, bufsize) ==> p = Popen("cmd", shell=True, bufsize=bufsize, stdin=PIPE, stdout=PIPE, stderr=PIPE, close_fds=True) (child_stdin, child_stdout, child_stderr) = (p.stdin, p.stdout, p.stderr) (child_stdin, child_stdout_and_stderr) = os.popen4("cmd", mode, bufsize) ==> p = Popen("cmd", shell=True, bufsize=bufsize, stdin=PIPE, stdout=PIPE, stderr=STDOUT, close_fds=True) (child_stdin, child_stdout_and_stderr) = (p.stdin, p.stdout) On Unix, os.popen2, os.popen3 and os.popen4 also accept a sequence as the command to execute, in which case arguments will be passed directly to the program without shell intervention. This usage can be replaced as follows: (child_stdin, child_stdout) = os.popen2(["/bin/ls", "-l"], mode, bufsize) ==> p = Popen(["/bin/ls", "-l"], bufsize=bufsize, stdin=PIPE, stdout=PIPE) (child_stdin, child_stdout) = (p.stdin, p.stdout) Return code handling translates as follows: pipe = os.popen("cmd", 'w') ... rc = pipe.close() if rc is not None and rc % 256: print "There were some errors" ==> process = Popen("cmd", 'w', shell=True, stdin=PIPE) ... process.stdin.close() if process.wait() != 0: print "There were some errors" Replacing popen2.* ------------------ (child_stdout, child_stdin) = popen2.popen2("somestring", bufsize, mode) ==> p = Popen(["somestring"], shell=True, bufsize=bufsize stdin=PIPE, stdout=PIPE, close_fds=True) (child_stdout, child_stdin) = (p.stdout, p.stdin) On Unix, popen2 also accepts a sequence as the command to execute, in which case arguments will be passed directly to the program without shell intervention. This usage can be replaced as follows: (child_stdout, child_stdin) = popen2.popen2(["mycmd", "myarg"], bufsize, mode) ==> p = Popen(["mycmd", "myarg"], bufsize=bufsize, stdin=PIPE, stdout=PIPE, close_fds=True) (child_stdout, child_stdin) = (p.stdout, p.stdin) The popen2.Popen3 and popen2.Popen4 basically works as subprocess.Popen, except that: * subprocess.Popen raises an exception if the execution fails * the capturestderr argument is replaced with the stderr argument. * stdin=PIPE and stdout=PIPE must be specified. * popen2 closes all filedescriptors by default, but you have to specify close_fds=True with subprocess.Popen. i����Nt win32t CalledProcessErrorc B s# e Z d Z d d � Z d � Z RS( s� This exception is raised when a process run by check_call() or check_output() returns a non-zero exit status. The exit status will be stored in the returncode attribute; check_output() will also store the output in the output attribute. c C s | | _ | | _ | | _ d S( N( t returncodet cmdt output( t selfR R R ( ( s" /usr/lib64/python2.7/subprocess.pyt __init__� s c C s d | j | j f S( Ns- Command '%s' returned non-zero exit status %d( R R ( R ( ( s" /usr/lib64/python2.7/subprocess.pyt __str__� s N( t __name__t __module__t __doc__t NoneR R ( ( ( s" /usr/lib64/python2.7/subprocess.pyR � s t STARTUPINFOc B s& e Z d Z d Z d Z d Z d Z RS( i N( R R t dwFlagsR t hStdInputt hStdOutputt hStdErrort wShowWindow( ( ( s" /usr/lib64/python2.7/subprocess.pyR � s t pywintypesc B s e Z e Z RS( ( R R t IOErrort error( ( ( s" /usr/lib64/python2.7/subprocess.pyR � s t pollt PIPE_BUFi t Popent PIPEt STDOUTt callt check_callt check_output( t CREATE_NEW_CONSOLEt CREATE_NEW_PROCESS_GROUPt STD_INPUT_HANDLEt STD_OUTPUT_HANDLEt STD_ERROR_HANDLEt SW_HIDEt STARTF_USESTDHANDLESt STARTF_USESHOWWINDOWR R R R R! R" R# R$ t SC_OPEN_MAXi c C s_ xX t D]O } | j d t j � } | d k r y t j | � WqW t k rS qW Xq q Wd S( Nt _deadstate( t _activet _internal_pollt syst maxintR t removet ValueError( t instt res( ( s" /usr/lib64/python2.7/subprocess.pyt _cleanup� s i����c G sV xO t rQ y | | � SWq t t f k rM } | j t j k rG q n � q Xq Wd S( N( t Truet OSErrorR t errnot EINTR( t funct argst e( ( s" /usr/lib64/python2.7/subprocess.pyt _eintr_retry_call� s c C s� i d d 6d d 6d d 6d d 6d d 6d d 6d d 6d d 6d d 6d d 6} g } xP | j � D]B \ } } t t j | � } | d k r_ | j d | | � q_ q_ Wx" t j D] } | j d | � q� W| S( sn Return a list of command-line arguments reproducing the current settings in sys.flags and sys.warnoptions.t dt debugt Ot optimizet Bt dont_write_bytecodet st no_user_sitet St no_sitet Et ignore_environmentt vt verboset bt bytes_warningt Rt hash_randomizationt 3t py3k_warningi t -s -W( t itemst getattrR) t flagst appendt warnoptions( t flag_opt_mapR5 t flagt optRD ( ( s" /usr/lib64/python2.7/subprocess.pyt _args_from_interpreter_flags� s& c O s t | | � j � S( s� Run command with arguments. Wait for command to complete, then return the returncode attribute. The arguments are the same as for the Popen constructor. Example: retcode = call(["ls", "-l"]) ( R t wait( t popenargst kwargs( ( s" /usr/lib64/python2.7/subprocess.pyR s c O sS t | | � } | rO | j d � } | d k r= | d } n t | | � � n d S( sS Run command with arguments. Wait for command to complete. If the exit code was zero then return, otherwise raise CalledProcessError. The CalledProcessError object will have the return code in the returncode attribute. The arguments are the same as for the Popen constructor. Example: check_call(["ls", "-l"]) R5 i N( R t getR R ( RW RX t retcodeR ( ( s" /usr/lib64/python2.7/subprocess.pyR s c O s� d | k r t d � � n t d t | | � } | j � \ } } | j � } | r� | j d � } | d k r| | d } n t | | d | �� n | S( s Run command with arguments and return its output as a byte string. If the exit code was non-zero it raises a CalledProcessError. The CalledProcessError object will have the return code in the returncode attribute and output in the output attribute. The arguments are the same as for the Popen constructor. Example: >>> check_output(["ls", "-l", "/dev/null"]) 'crw-rw-rw- 1 root root 1, 3 Oct 18 2007 /dev/null\n' The stdout argument is not allowed as it is used internally. To capture standard error in the result, use stderr=STDOUT. >>> check_output(["/bin/sh", "-c", ... "ls -l non_existent_file ; exit 0"], ... stderr=STDOUT) 'ls: non_existent_file: No such file or directory\n' t stdouts3 stdout argument not allowed, it will be overridden.R5 i R N( R, R R t communicateR RY R R ( RW RX t processR t unused_errRZ R ( ( s" /usr/lib64/python2.7/subprocess.pyR " s c C sG g } t } x+| D]#} g } | r5 | j d � n d | k pQ d | k pQ | } | rj | j d � n x� | D]� } | d k r� | j | � qq | d k r� | j d t | � d � g } | j d � qq | r� | j | � g } n | j | � qq W| r| j | � n | r | j | � | j d � q q Wd j | � S( s� Translate a sequence of arguments into a command line string, using the same rules as the MS C runtime: 1) Arguments are delimited by white space, which is either a space or a tab. 2) A string surrounded by double quotation marks is interpreted as a single argument, regardless of white space contained within. A quoted string can be embedded in an argument. 3) A double quotation mark preceded by a backslash is interpreted as a literal double quotation mark. 4) Backslashes are interpreted literally, unless they immediately precede a double quotation mark. 5) If backslashes immediately precede a double quotation mark, every pair of backslashes is interpreted as a literal backslash. If the number of backslashes is odd, the last backslash escapes the next double quotation mark as described in rule 3. t s t "s \i s \"t ( t FalseRP t lent extendt join( t seqt resultt needquotet argt bs_buft c( ( s" /usr/lib64/python2.7/subprocess.pyt list2cmdlineC s4 c B s� e Z d d d d d d e e d d e d d d � Z d � Z e j e d � Z d d � Z d � Z e r� d � Z d � Z d � Z d � Z d e j e j e j d � Z d � Z d � Z d � Z d � Z d � Z e Z n� d � Z e d � Z d � Z d � Z d � Z e j! e j" e j# e j$ d � Z% d e j& e j' e j( e) j* d � Z d � Z d � Z d � Z+ d � Z, d � Z d � Z d � Z RS( i c C s" t � t | _ t | t t f � s4 t d � � n t r� | d k rU t d � � n | r� | d k s | d k s | d k r� t d � � q� n6 | d k r� t d � � n | d k r� t d � � n d | _ d | _ d | _ d | _ d | _ | | _ | j | | | � \ \ } } } } } } } yA | j | | | | | | | | | | | | | | | | | � Wn{ t k r�t j � \ } } } xF | D]> } y$ t r�| j � n t j | � Wq�t k r�q�Xq�W| | | � n Xt rg| d k rt j | j � d � } n | d k r=t j | j � d � } n | d k rgt j | j � d � } qgn | d k r�t j | d | � | _ n | d k r�| r�t j | d | � | _ q�t j | d | � | _ n | d k r | rt j | d | � | _ q t j | d | � | _ n d S( s Create new Popen instance.s bufsize must be an integers0 preexec_fn is not supported on Windows platformssS close_fds is not supported on Windows platforms if you redirect stdin/stdout/stderrs2 startupinfo is only supported on Windows platformsi s4 creationflags is only supported on Windows platformst wbt rUt rbN( R/ Rb t _child_createdt isinstancet intt longt TypeErrort mswindowsR R, t stdinR[ t stderrt pidR t universal_newlinest _get_handlest _execute_childt ExceptionR) t exc_infot Closet ost closet EnvironmentErrort msvcrtt open_osfhandlet Detacht fdopen( R R5 t bufsizet executableRv R[ Rw t preexec_fnt close_fdst shellt cwdt envRy t startupinfot creationflagst p2creadt p2cwritet c2preadt c2pwritet errreadt errwritet to_closet exc_typet exc_valuet exc_tracet fd( ( s" /usr/lib64/python2.7/subprocess.pyR � sn - c C s( | j d d � } | j d d � } | S( Ns s s ( t replace( R t data( ( s" /usr/lib64/python2.7/subprocess.pyt _translate_newlines� s c C sU t | d t � s d S| j d | � | j d k rQ | d k rQ | j | � n d S( NRp R& ( RN Rb R( R R RP ( R t _maxintR' ( ( s" /usr/lib64/python2.7/subprocess.pyt __del__� s c C s | j | j | j g j d � d k rd } d } | j r� | r� y | j j | � Wq� t k r� } | j t j k r� | j t j k r� � q� q� Xn | j j � nV | j r� t | j j � } | j j � n+ | j r� t | j j � } | j j � n | j � | | f S| j | � S( sf Interact with process: Send data to stdin. Read data from stdout and stderr, until end-of-file is reached. Wait for process to terminate. The optional input argument should be a string to be sent to the child process, or None, if no data should be sent to the child. communicate() returns a tuple (stdout, stderr).i N( Rv R[ Rw t countR t writeR R2 t EPIPEt EINVALR� R7 t readRV t _communicate( R t inputR[ Rw R6 ( ( s" /usr/lib64/python2.7/subprocess.pyR\ s( ' $ c C s | j � S( N( R( ( R ( ( s" /usr/lib64/python2.7/subprocess.pyR # s c C s# t � } | d k r7 | d k r7 | d k r7 d | f Sd \ } } d \ } } d \ } } | d k r� t j t j � } | d k r t j d d � \ } } q n] | t k r� t j d d � \ } } n6 t | t � r� t j | � } n t j | j � � } | j | � } | j | � | t k r8| j | � n | d k r�t j t j � } | d k r�t j d d � \ } } q�n] | t k r�t j d d � \ } } n6 t | t � r�t j | � } n t j | j � � } | j | � } | j | � | t k r| j | � n | d k r]t j t j � } | d k r�t j d d � \ } } q�nr | t k r�t j d d � \ } } nK | t k r�| } n6 t | t � r�t j | � } n t j | j � � } | j | � } | j | � | t k r| j | � n | | | | | | f | f S( s| Construct and return tuple with IO objects: p2cread, p2cwrite, c2pread, c2pwrite, errread, errwrite i N( NNNNNN( NN( NN( NN( t setR t _subprocesst GetStdHandleR t CreatePipeR Rq Rr R� t get_osfhandlet filenot _make_inheritablet addR R! R ( R Rv R[ Rw R� R� R� R� R� R� R� t _( ( s" /usr/lib64/python2.7/subprocess.pyRz + sd $ c C s+ t j t j � | t j � d d t j � S( s2 Return a duplicate of handle, which is inheritablei i ( R� t DuplicateHandlet GetCurrentProcesst DUPLICATE_SAME_ACCESS( R t handle( ( s" /usr/lib64/python2.7/subprocess.pyR� q s c C s� t j j t j j t j d � � d � } t j j | � s� t j j t j j t j � d � } t j j | � s� t d � � q� n | S( s, Find and return absolut path to w9xpopen.exei s w9xpopen.exesZ Cannot locate w9xpopen.exe, which is needed for Popen to work with your shell or platform.( R t pathRe t dirnameR� t GetModuleFileNamet existsR) t exec_prefixt RuntimeError( R t w9xpopen( ( s" /usr/lib64/python2.7/subprocess.pyt _find_w9xpopenx s c s t | t j � s! t | � } n | d k r9 t � } n d | | | f k r~ | j t j O_ | | _ | | _ | | _ n | r(| j t j O_ t j | _ t j j d d � } d j | | � } t j � d k s� t j j | � j � d k r(| j � } d | | f } | t j O} q(n � f d � } zj y> t j | | d d t | � | | | | � \ } } } } Wn% t j k r�} t | j � � n XWd | d k r�| | � n | d k r�| | � n | d k r�| | � n Xt | _ | | _! | | _" | j# � d S( s$ Execute program (MS Windows version)t COMSPECs cmd.exes {} /c "{}"I � s command.coms "%s" %sc s | j � � j | � d S( N( R~ R+ ( R� ( R� ( s" /usr/lib64/python2.7/subprocess.pyt _close_in_parent� s N($ Rq t typest StringTypesRl R R R R� R# R R R R$ R" R R t environRY t formatt GetVersionR� t basenamet lowerR� R t CreateProcessRr R R t WindowsErrorR5 R0 Rp t _handleRx R~ ( R R5 R� R� R� R� R� Ry R� R� R� R� R� R� R� R� R� R� t comspecR� R� t hpt htRx t tidR6 ( ( R� s" /usr/lib64/python2.7/subprocess.pyR{ � sR c C sF | j d k r? | | j d � | k r? | | j � | _ q? n | j S( s� Check if child process has terminated. Returns returncode attribute. This method is called by __del__, so it can only refer to objects in its local scope. i N( R R R� ( R R& t _WaitForSingleObjectt _WAIT_OBJECT_0t _GetExitCodeProcess( ( s" /usr/lib64/python2.7/subprocess.pyR( � s c C sD | j d k r= t j | j t j � t j | j � | _ n | j S( sO Wait for child process to terminate. Returns returncode attribute.N( R R R� t WaitForSingleObjectR� t INFINITEt GetExitCodeProcess( R ( ( s" /usr/lib64/python2.7/subprocess.pyRV � s c C s | j | j � � d S( N( RP R� ( R t fht buffer( ( s" /usr/lib64/python2.7/subprocess.pyt _readerthread� s c C s� d } d } | j rY g } t j d | j d | j | f � } | j t � | j � n | j r� g } t j d | j d | j | f � } | j t � | j � n | j r| d k r y | j j | � Wq t k r� } | j t j k r� � q� q Xn | j j � n | j r&| j � n | j r<| j � n | d k rU| d } n | d k rn| d } n | j r�t t d � r�| r�| j | � } n | r�| j | � } q�n | j � | | f S( Nt targetR5 i t newlines( R R[ t threadingt ThreadR� t setDaemonR0 t startRw Rv R� R R2 R� R� Re Ry t hasattrt fileR� RV ( R R� R[ Rw t stdout_threadt stderr_threadR6 ( ( s" /usr/lib64/python2.7/subprocess.pyR� � sJ c C s� | t j k r | j � ne | t j k rD t j | j t j � n= | t j k rl t j | j t j � n t d j | � � � d S( s) Send a signal to the process s Unsupported signal: {}N( t signalt SIGTERMt terminatet CTRL_C_EVENTR t killRx t CTRL_BREAK_EVENTR, R� ( R t sig( ( s" /usr/lib64/python2.7/subprocess.pyt send_signal+ s c C sv y t j | j d � WnX t k rq } | j d k r> � n t j | j � } | t j k re � n | | _ n Xd S( s# Terminates the process i i N( R� t TerminateProcessR� R1 t winerrorR� t STILL_ACTIVER ( R R6 t rc( ( s" /usr/lib64/python2.7/subprocess.pyR� 7 s c C s� t � } d \ } } d \ } } d \ } } | d k r< nX | t k rp | j � \ } } | j | | f � n$ t | t � r� | } n | j � } | d k r� nX | t k r� | j � \ } } | j | | f � n$ t | t � r� | } n | j � } | d k r nm | t k r>| j � \ } } | j | | f � n9 | t k rS| } n$ t | t � rk| } n | j � } | | | | | | f | f S( s| Construct and return tuple with IO objects: p2cread, p2cwrite, c2pread, c2pwrite, errread, errwrite N( NN( NN( NN( R� R R t pipe_cloexect updateRq Rr R� R ( R Rv R[ Rw R� R� R� R� R� R� R� ( ( s" /usr/lib64/python2.7/subprocess.pyRz L sB c C s~ y t j } Wn t k r& d } n Xt j | t j � } | r_ t j | t j | | B� n t j | t j | | @� d S( Ni ( t fcntlt FD_CLOEXECt AttributeErrort F_GETFDt F_SETFD( R R� t cloexect cloexec_flagt old( ( s" /usr/lib64/python2.7/subprocess.pyt _set_cloexec_flag} s c C s6 t j � \ } } | j | � | j | � | | f S( s# Create a pipe with FDs set CLOEXEC.( R t pipeR� ( R t rt w( ( s" /usr/lib64/python2.7/subprocess.pyR� � s c C s� t t d � r6 t j d | � t j | d t � nG xD t d t � D]3 } | | k r^ qF n y t j | � WqF qF XqF Wd S( Nt closerangei i ( R� R R� t MAXFDt xrangeR� ( R t butt i( ( s" /usr/lib64/python2.7/subprocess.pyt _close_fds� s c sC t | t j � r | g } n t | � } | rV d d g | } | rV | | d <qV n | d k ro | d } n � f d � } � j � \ } } z�z�t j � } t j � y t j � � _ Wn | r� t j � n � n Xt � _ � j d k ry�| d k rt j | � n | d k r2t j | � n | d k rNt j | � n t j | � | d k ryt j | � } n | d k s�| d k r�t j | � } n � f d � } | | d � | | d � | | d � d h } xL | | | g D]; } | | k r�| d k r�t j | � | j | � q�q�W| rJ� j d | � n | d k rft j | � n | rv| � n | d k r�t j | | � n t j | | | � Wn\ t j � \ } } } t j | | | � } d j | � | _ t j | t j | � � n Xt j d � n | r+t j � n Wd t j | � Xt t j! | d � } Wd | d k r{| d k r{| | � n | d k r�| d k r�| | � n | d k r�| d k r�| | � n t j | � X| d k r?y t t j" � j d � Wn+ t# k r&} | j$ t$ j% k r'� q'n Xt j& | � } | � n d S( s Execute program (POSIX version)s /bin/shs -ci c s t j | � � j | � d S( N( R R� R+ ( R� ( R� ( s" /usr/lib64/python2.7/subprocess.pyR� � s i c sB | | k r � j | t � n | d k r> t j | | � n d S( N( R� Rb R R t dup2( t aRF ( R ( s" /usr/lib64/python2.7/subprocess.pyt _dup2� s i R� Ra i� Ni (' Rq R� R� t listR R� t gct isenabledt disableR t forkRx t enableR0 Rp R� t dupR� R� t chdirt execvpt execvpeR) R} t tracebackt format_exceptionRe t child_tracebackR� t picklet dumpst _exitR7 R� t waitpidR1 R2 t ECHILDt loads( R R5 R� R� R� R� R� Ry R� R� R� R� R� R� R� R� R� R� R� t errpipe_readt errpipe_writet gc_was_enabledR t closedR� R� R� t tbt exc_linesR� R6 t child_exception( ( R R� s" /usr/lib64/python2.7/subprocess.pyR{ � s� c C sM | | � r | | � | _ n* | | � r= | | � | _ n t d � � d S( Ns Unknown child exit status!( R R� ( R t stst _WIFSIGNALEDt _WTERMSIGt _WIFEXITEDt _WEXITSTATUS( ( s" /usr/lib64/python2.7/subprocess.pyt _handle_exitstatus2 s c C s� | j d k r� y; | | j | � \ } } | | j k rI | j | � n Wq� | k r� } | d k rt | | _ n | j | k r� d | _ q� q� Xn | j S( s� Check if child process has terminated. 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Returns returncode attribute.i N( R R R7 R R Rx R1 R2 R R ( R Rx R R6 ( ( s" /usr/lib64/python2.7/subprocess.pyRV [ s " c C s� | j r/ | j j � | s/ | j j � q/ n t rM | j | � \ } } n | j | � \ } } | d k r� d j | � } n | d k r� d j | � } n | j r� t t d � r� | r� | j | � } n | r� | j | � } q� n | j � | | f S( NRa R� ( Rv t flushR� t _has_pollt _communicate_with_pollt _communicate_with_selectR Re Ry R� R� R� RV ( R R� R[ Rw ( ( s" /usr/lib64/python2.7/subprocess.pyR� p s$ c s> d } d } i � i } t j � � � � f d � } � � f d � } | j rm | rm | | j t j � n t j t j B} | j r� | | j | � g | | j j � <} n | j r� | | j | � g | | j j � <} n d } xH� r3y � j � } Wn5 t j k r9} | j d t j k r3q� n � n Xx� | D]� \ } } | t j @r�| | | t !} y | t j | | � 7} Wn5 t k r�} | j t j k r�| | � q�� q,X| t | � k r,| | � q,qA| | @r"t j | d � } | s| | � n | | j | � qA| | � qAWq� W| | f S( Nc s* � j | j � | � | � | j � <d S( N( t registerR� ( t file_objt eventmask( t fd2filet poller( s" /usr/lib64/python2.7/subprocess.pyt register_and_append� s c s, � j | � � | j � � j | � d S( N( t unregisterR� t pop( R� ( R, R- ( s" /usr/lib64/python2.7/subprocess.pyt close_unregister_and_remove� s i i ( R t selectR Rv t POLLOUTt POLLINt POLLPRIR[ R� Rw R R5 R2 R3 t _PIPE_BUFR R� R1 R� Rc R� RP ( R R� R[ Rw t fd2outputR. R1 t select_POLLIN_POLLPRIt input_offsett readyR6 R� t modet chunkR� ( ( R, R- s" /usr/lib64/python2.7/subprocess.pyR' � sT c C s� g } g } d } d } | j r: | r: | j | j � n | j r\ | j | j � g } n | j r~ | j | j � g } n d } x�| s� | r�y" t j | | g � \ } } } Wn5 t j k r� } | j d t j k r� q� n � n X| j | k r�| | | t !} y t j | j j � | � } WnH t k rv} | j t j k rp| j j � | j | j � q�� q�X| | 7} | t | � k r�| j j � | j | j � q�n | j | k r t j | j j � d � } | d k r | j j � | j | j � n | j | � n | j | k r� t j | j j � d � } | d k rr| j j � | j | j � n | j | � q� q� W| | f S( Ni i Ra ( R Rv RP R[ Rw R2 R R5 R2 R3 R6 R R� R� R1 R� R� R+ Rc R� ( R R� t read_sett write_setR[ Rw R9 t rlistt wlistt xlistR6 R< t bytes_writtenR� ( ( s" /usr/lib64/python2.7/subprocess.pyR( � s\ " c C s t j | j | � d S( s) Send a signal to the process N( R R� Rx ( R R� ( ( s" /usr/lib64/python2.7/subprocess.pyR� s c C s | j t j � d S( s/ Terminate the process with SIGTERM N( R� R� R� ( R ( ( s" /usr/lib64/python2.7/subprocess.pyR� s c C s | j t j � d S( s* Kill the process with SIGKILL N( R� R� t SIGKILL( R ( ( s" /usr/lib64/python2.7/subprocess.pyR� s N(- R R R Rb R R� R) R* R' R� R\ R Ru Rz R� R� R{ R� R� t WAIT_OBJECT_0R� R( RV R� R� R� R� R� R0 R� R� R� R t WIFSIGNALEDt WTERMSIGt WIFEXITEDt WEXITSTATUSR R t WNOHANGR R2 R R' R( ( ( ( s" /usr/lib64/python2.7/subprocess.pyR � sR _ " F Q 2 1 � ! = 9 c C s( t d g d t �j � d } d GH| GHt j � d k r` t d g d d � �} | j � n d GHt d g d t �} t d d g d | j d t �} t | j � d � GHHd GHy t d g � j � GHWnF t k r} | j t j k rd GHd GH| j GHq$d G| j GHn Xt j d IJd S( Nt psR[ i s Process list:t idR� c S s t j d � S( Nid ( R t setuid( ( ( s" /usr/lib64/python2.7/subprocess.pyt <lambda># s s Looking for 'hda'...t dmesgt grept hdaRv s Trying a weird file...s /this/path/does/not/exists' The file didn't exist. I thought so...s Child traceback:t Errors Gosh. No error.( R R R\ R t getuidRV R[ t reprR1 R2 t ENOENTR R) Rw ( t plistt pt p1t p2R6 ( ( s" /usr/lib64/python2.7/subprocess.pyt _demo_posix s* ! c C sl d GHt d d t d t �} t d d | j d t �} t | j � d � GHd GHt d � } | j � d S( Ns% Looking for 'PROMPT' in set output...R� R[ R� s find "PROMPT"Rv i s Executing calc...t calc( R R R0 R[ RS R\ RV ( RW RX RV ( ( s" /usr/lib64/python2.7/subprocess.pyt _demo_windows@ s t __main__(3 R R) t platformRu R R� R R R� R2 R| R R� R� R� R R R2 R� R& R� R RN R6 t __all__R R R R R! R" R# R$ Rd t sysconfR� R' R/ R R R7 RU R R R Rl t objectR RY R[ R ( ( ( s" /usr/lib64/python2.7/subprocess.pyt <module>� sh : ! F� � � � )