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d Z d Z e e d Z e e d Z d S( s Pseudo terminal utilities.( s selectNt openptyt forkt spawni i i c C sO y t i SWn t t f j
o n Xt \ } } t | } | | f S( sd openpty() -> (master_fd, slave_fd)
Open a pty master/slave pair, using os.openpty() if possible.N( t osR t AttributeErrort OSErrort _open_terminalt master_fdt
slave_namet
slave_opent slave_fd( R R R
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o n( Xt i | } t i | | | f St S( s master_open() -> (master_fd, slave_name)
Open a pty master and return the fd, and the filename of the slave end.
Deprecated, use openpty() instead.N(
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q n X| d | | f Sq Wqz Wt i d d S( sl Open pty master and return (master_fd, tty_name).
SGI and generic BSD version, for when openpty() fails.NiΆ i t pqrstuvwxyzPQRSTt 0123456789abcdefs /dev/ptys /dev/ttys out of pty devices( t sgit ImportErrort _getptyR t O_RDWRt tty_nameR t IOErrort msgt errort xt yt pty_namet opent fd( R R R R R R R R ( ( R R 1 s*
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o n X| S( s© slave_open(tty_name) -> slave_fd
Open the pty slave and acquire the controlling terminal, returning
opened filedescriptor.
Deprecated, use openpty() instead.( s ioctls I_PUSHt ptemt ldtermN(
R R R R t resultt fcntlt ioctlt I_PUSHR R ( R R" R R# ( ( R R H s c C s y t i \ } } Wn t t f j
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| t | t j o t i | qn | | f S( sd fork() -> (pid, master_fd)
Fork and make the child a session leader with a controlling terminal.N( R t forkptyt pidR R R t CHILDt setsidR R R
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t dup2t STDIN_FILENOt
STDOUT_FILENOt
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c C s5 x. | d j o t i | | } | | } q Wd S( s# Write all the data to a descriptor.t N( t dataR t writeR t n( R R- R/ ( ( R t _writen| s
c C s t i | d S( s Default read function.i N( R t readR ( R ( ( R t _read s c C s x} t | t g g g \ } } } | | j o | | } t i t
| n t | j o | t } t | | q q Wd S( s Parent copy loop.
Copies
pty master -> standard output (master_read)
standard input -> pty master (stdin_read)i N(
t selectR R) t rfdst wfdst xfdst master_readR- R R. R* t
stdin_readR0 ( R R7 R8 R4 R5 R- R6 ( ( R t _copy s !
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t i | qπ n Xt i | d S( s Create a spawned process.R, i i N( t typet argvR R% R R& R t execlpt ttyt tcgetattrR) t modet setrawt restoreR R9 R7 R8 R R t tcsetattrt TCSAFLUSHR
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