The telnetlib module provides a Telnet class that
implements the Telnet protocol. See RFC 854 for details about the
protocol. In addition, it provides symbolic constants for the protocol
characters (IAC/DONT/DO/WONT/WILL), and for the telnet options. The
symbolic names of the telnet options follow the definitions in
arpa/telnet.h, with the leading TELOPT_ removed. For
symbolic names of options which are traditionally not included in
arpa/telnet.h, see the module source itself.
Telnet represents a connection to a Telnet server. The
instance is initially not connected by default; the open()
method must be used to establish a connection. Alternatively, the
host name and optional port number can be passed to the constructor,
to, in which case the connection to the server will be established
before the constructor returns.
Do not reopen an already connected instance.
This class has many read_*() methods. Note that some of them
raise EOFError when the end of the connection is read,
because they can return an empty string for other reasons. See the
individual descriptions below.