Edit file File name : popen2.pyc Content :� �bc @ sV d Z d d l Z d d l Z d d l Z e j d e d d �d d d g Z y e j d � Z Wn e e f k r� d Z n Xg Z d � Z d d d � � YZ d e f d � � YZ e j d d k s� e j d k r[ [ d d d � Z d d d � Z d d d � Z n@ d d d � Z d d d � Z d d d � Z e j d d g � d S( sn Spawn a command with pipes to its stdin, stdout, and optionally stderr. The normal os.popen(cmd, mode) call spawns a shell command and provides a file interface to just the input or output of the process depending on whether mode is 'r' or 'w'. This module provides the functions popen2(cmd) and popen3(cmd) which return two or three pipes to the spawned command. i����Ns< The popen2 module is deprecated. Use the subprocess module.t stackleveli t popen2t popen3t popen4t SC_OPEN_MAXi c C sY xR t D]I } | j d t j � d k r y t j | � WqQ t k rM qQ Xq q Wd S( Nt _deadstatei ( t _activet pollt syst maxintt removet ValueError( t inst( ( s /usr/lib/python2.7/popen2.pyt _cleanup s t Popen3c B sJ e Z d Z d Z e d d � Z d � Z d � Z d d � Z d � Z RS( s{ Class representing a child process. Normally, instances are created internally by the functions popen2() and popen3().i����c C s; t � | | _ t j � \ } } t j � \ } } | rO t j � \ } } n t j � | _ | j d k r� t j | d � t j | d � | r� t j | d � n | j | � n t j | � t j | d | � | _ t j | � t j | d | � | _ | r.t j | � t j | d | � | _ n d | _ d S( sd The parameter 'cmd' is the shell command to execute in a sub-process. On UNIX, 'cmd' may be a sequence, in which case arguments will be passed directly to the program without shell intervention (as with os.spawnv()). If 'cmd' is a string it will be passed to the shell (as with os.system()). The 'capturestderr' flag, if true, specifies that the object should capture standard error output of the child process. The default is false. If the 'bufsize' parameter is specified, it specifies the size of the I/O buffers to/from the child process.i i i t wt rN( R t cmdt ost pipet forkt pidt dup2t _run_childt closet fdopent tochildt fromchildt childerrt None( t selfR t capturestderrt bufsizet p2creadt p2cwritet c2preadt c2pwritet erroutt errin( ( s /usr/lib/python2.7/popen2.pyt __init__( s* c C sE | j d t j � | j d k rA t d k rA t j | � qA n d S( NR i ( R R R t stsR R t append( R ( ( s /usr/lib/python2.7/popen2.pyt __del__J s c C s^ t | t � r! d d | g } n t j d t � z t j | d | � Wd t j d � Xd S( Ns /bin/shs -ci i i ( t isinstancet basestringR t closeranget MAXFDt execvpt _exit( R R ( ( s /usr/lib/python2.7/popen2.pyR R s c C s� | j d k r~ y= t j | j t j � \ } } | | j k rK | | _ n Wq~ t j k rz | d k r{ | | _ q{ q~ Xn | j S( sh Return the exit status of the child process if it has finished, or -1 if it hasn't finished yet.i N( R( R t waitpidR t WNOHANGt errorR ( R R R R( ( ( s /usr/lib/python2.7/popen2.pyR [ s c C sR | j d k rK t j | j d � \ } } | | j k s? t � | | _ n | j S( s9 Wait for and return the exit status of the child process.i ( R( R R1 R t AssertionError( R R R( ( ( s /usr/lib/python2.7/popen2.pyt waiti s N( t __name__t __module__t __doc__R( t FalseR' R* R R R R5 ( ( ( s /usr/lib/python2.7/popen2.pyR " s " t Popen4c B s e Z d Z d d � Z RS( i����c C s� t � | | _ t j � \ } } t j � \ } } t j � | _ | j d k r� t j | d � t j | d � t j | d � | j | � n t j | � t j | d | � | _ t j | � t j | d | � | _ d S( Ni i i R R ( R R R R R R R R R R R R ( R R R R! R" R# R$ ( ( s /usr/lib/python2.7/popen2.pyR' w s N( R6 R7 R R R' ( ( ( s /usr/lib/python2.7/popen2.pyR: t s i t wint os2emxt tc C s% t j | | | � \ } } | | f S( s� Execute the shell command 'cmd' in a sub-process. On UNIX, 'cmd' may be a sequence, in which case arguments will be passed directly to the program without shell intervention (as with os.spawnv()). If 'cmd' is a string it will be passed to the shell (as with os.system()). If 'bufsize' is specified, it sets the buffer size for the I/O pipes. The file objects (child_stdout, child_stdin) are returned.( R R ( R R t modeR R ( ( s /usr/lib/python2.7/popen2.pyR � s c C s+ t j | | | � \ } } } | | | f S( s� Execute the shell command 'cmd' in a sub-process. On UNIX, 'cmd' may be a sequence, in which case arguments will be passed directly to the program without shell intervention (as with os.spawnv()). If 'cmd' is a string it will be passed to the shell (as with os.system()). If 'bufsize' is specified, it sets the buffer size for the I/O pipes. The file objects (child_stdout, child_stdin, child_stderr) are returned.( R R ( R R R> R R t e( ( s /usr/lib/python2.7/popen2.pyR � s c C s% t j | | | � \ } } | | f S( s� Execute the shell command 'cmd' in a sub-process. On UNIX, 'cmd' may be a sequence, in which case arguments will be passed directly to the program without shell intervention (as with os.spawnv()). If 'cmd' is a string it will be passed to the shell (as with os.system()). If 'bufsize' is specified, it sets the buffer size for the I/O pipes. The file objects (child_stdout_stderr, child_stdin) are returned.( R R ( R R R> R R ( ( s /usr/lib/python2.7/popen2.pyR � s c C s" t | t | � } | j | j f S( s� Execute the shell command 'cmd' in a sub-process. On UNIX, 'cmd' may be a sequence, in which case arguments will be passed directly to the program without shell intervention (as with os.spawnv()). If 'cmd' is a string it will be passed to the shell (as with os.system()). If 'bufsize' is specified, it sets the buffer size for the I/O pipes. The file objects (child_stdout, child_stdin) are returned.( R R9 R R ( R R R> R ( ( s /usr/lib/python2.7/popen2.pyR � s c C s( t | t | � } | j | j | j f S( s� Execute the shell command 'cmd' in a sub-process. On UNIX, 'cmd' may be a sequence, in which case arguments will be passed directly to the program without shell intervention (as with os.spawnv()). If 'cmd' is a string it will be passed to the shell (as with os.system()). If 'bufsize' is specified, it sets the buffer size for the I/O pipes. The file objects (child_stdout, child_stdin, child_stderr) are returned.( R t TrueR R R ( R R R> R ( ( s /usr/lib/python2.7/popen2.pyR � s c C s t | | � } | j | j f S( s� Execute the shell command 'cmd' in a sub-process. On UNIX, 'cmd' may be a sequence, in which case arguments will be passed directly to the program without shell intervention (as with os.spawnv()). If 'cmd' is a string it will be passed to the shell (as with os.system()). If 'bufsize' is specified, it sets the buffer size for the I/O pipes. The file objects (child_stdout_stderr, child_stdin) are returned.( R: R R ( R R R> R ( ( s /usr/lib/python2.7/popen2.pyR � s ( ( R8 R R t warningst warnt DeprecationWarningt __all__t sysconfR. t AttributeErrorR R R R R: t platformR R R t extend( ( ( s /usr/lib/python2.7/popen2.pyt <module> s. R" Save