You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
49 lines
1.7 KiB
49 lines
1.7 KiB
|
|
:mod:`pty` --- Pseudo-terminal utilities
|
|
========================================
|
|
|
|
.. module:: pty
|
|
:platform: Linux
|
|
:synopsis: Pseudo-Terminal Handling for Linux.
|
|
.. moduleauthor:: Steen Lumholt
|
|
.. sectionauthor:: Moshe Zadka <moshez@zadka.site.co.il>
|
|
|
|
|
|
The :mod:`pty` module defines operations for handling the pseudo-terminal
|
|
concept: starting another process and being able to write to and read from its
|
|
controlling terminal programmatically.
|
|
|
|
Because pseudo-terminal handling is highly platform dependent, there is code to
|
|
do it only for Linux. (The Linux code is supposed to work on other platforms,
|
|
but hasn't been tested yet.)
|
|
|
|
The :mod:`pty` module defines the following functions:
|
|
|
|
|
|
.. function:: fork()
|
|
|
|
Fork. Connect the child's controlling terminal to a pseudo-terminal. Return
|
|
value is ``(pid, fd)``. Note that the child gets *pid* 0, and the *fd* is
|
|
*invalid*. The parent's return value is the *pid* of the child, and *fd* is a
|
|
file descriptor connected to the child's controlling terminal (and also to the
|
|
child's standard input and output).
|
|
|
|
|
|
.. function:: openpty()
|
|
|
|
Open a new pseudo-terminal pair, using :func:`os.openpty` if possible, or
|
|
emulation code for generic Unix systems. Return a pair of file descriptors
|
|
``(master, slave)``, for the master and the slave end, respectively.
|
|
|
|
|
|
.. function:: spawn(argv[, master_read[, stdin_read]])
|
|
|
|
Spawn a process, and connect its controlling terminal with the current
|
|
process's standard io. This is often used to baffle programs which insist on
|
|
reading from the controlling terminal.
|
|
|
|
The functions *master_read* and *stdin_read* should be functions which read from
|
|
a file descriptor. The defaults try to read 1024 bytes each time they are
|
|
called.
|
|
|