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Pexpect is a pure Python module for spawning child applications; controlling
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them; and responding to expected patterns in their output. Pexpect works like
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Don Libes' Expect. Pexpect allows your script to spawn a child application and
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control it as if a human were typing commands.
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Pexpect can be used for automating interactive applications such as ssh, ftp,
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passwd, telnet, etc. It can be used to a automate setup scripts for duplicating
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software package installations on different servers. It can be used for
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automated software testing. Pexpect is in the spirit of Don Libes' Expect, but
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Pexpect is pure Python.
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The main features of Pexpect require the pty module in the Python standard
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library, which is only available on Unix-like systems. Some features—waiting
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for patterns from file descriptors or subprocesses—are also available on
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Windows.
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