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+
+:mod:`pty` --- Pseudo-terminal utilities
+========================================
+
+.. module:: pty
+   :platform: IRIX, Linux
+   :synopsis: Pseudo-Terminal Handling for SGI and 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 dependant, there is code to
+do it only for SGI and 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 SGI and 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.
+