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[ 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.
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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
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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/lib64/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/lib64/python2.7/popen2.pyt waiti s
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N( R6 R7 R R R' ( ( ( s /usr/lib64/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/lib64/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
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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
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be a sequence, in which case arguments will be passed directly to the
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