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Pexpect is a Pure Python Expect-like module
Pexpect makes Python a better tool for controlling other applications.
Pexpect is a pure Python module for spawning child applications; controlling
them; and responding to expected patterns in their output. Pexpect works like
Don Libes' Expect. Pexpect allows your script to spawn a child application and
control it as if a human were typing commands.
Pexpect can be used for automating interactive applications such as ssh, ftp,
passwd, telnet, etc. It can be used to automate setup scripts for duplicating
software package installations on different servers. It can be used for
automated software testing. Pexpect is in the spirit of Don Libes' Expect, but
Pexpect is pure Python.
The main features of Pexpect require the pty module in the Python standard
library, which is only available on Unix-like systems. Some features—waiting
for patterns from file descriptors or subprocesses—are also available on
If you want to work with the development version of the source code then please
read the DEVELOPERS.rst document in the root of the source code tree.
Free, open source, and all that good stuff.
You can install Pexpect using pip::
pip install pexpect
`Docs on ReadTheDocs <https://pexpect.readthedocs.io/>`_
Copyright (c) 2013-2016, Pexpect development team
Copyright (c) 2012, Noah Spurrier <firstname.lastname@example.org>
PERMISSION TO USE, COPY, MODIFY, AND/OR DISTRIBUTE THIS SOFTWARE FOR ANY
PURPOSE WITH OR WITHOUT FEE IS HEREBY GRANTED, PROVIDED THAT THE ABOVE
COPYRIGHT NOTICE AND THIS PERMISSION NOTICE APPEAR IN ALL COPIES.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
This license is approved by the OSI and FSF as GPL-compatible.