Telnet Objects
--------------
`Telnet' instances have the following methods:
`read_until(expected[, timeout])'
Read until a given string is encountered or until timeout.
When no match is found, return whatever is available instead,
possibly the empty string. Raise `EOFError' if the connection is
closed and no cooked data is available.
`read_all()'
Read all data until `EOF'; block until connection closed.
`read_some()'
Read at least one byte of cooked data unless `EOF' is hit. Return
`''' if `EOF' is hit. Block if no data is immediately available.
`read_very_eager()'
Read everything that can be without blocking in I/O (eager).
Raise `EOFError' if connection closed and no cooked data
available. Return `''' if no cooked data available otherwise. Do
not block unless in the midst of an IAC sequence.
`read_eager()'
Read readily available data.
Raise `EOFError' if connection closed and no cooked data
available. Return `''' if no cooked data available otherwise. Do
not block unless in the midst of an IAC sequence.
`read_lazy()'
Process and return data already in the queues (lazy).
Raise `EOFError' if connection closed and no data available.
Return `''' if no cooked data available otherwise. Do not block
unless in the midst of an IAC sequence.
`read_very_lazy()'
Return any data available in the cooked queue (very lazy).
Raise `EOFError' if connection closed and no data available.
Return `''' if no cooked data available otherwise. This method
never blocks.
`open(host[, port])'
Connect to a host. The optional second argument is the port
number, which defaults to the standard telnet port (23).
Do not try to reopen an already connected instance.
`msg(msg[, *args])'
Print a debug message when the debug level is `>' 0. If extra
arguments are present, they are substituted in the message using
the standard string formatting operator.
`set_debuglevel(debuglevel)'
Set the debug level. The higher the value of DEBUGLEVEL, the more
debug output you get (on `sys.stdout').
`close()'
Close the connection.
`get_socket()'
Return the socket object used internally.
`fileno()'
Return the file descriptor of the socket object used internally.
`write(buffer)'
Write a string to the socket, doubling any IAC characters. This
can block if the connection is blocked. May raise `socket.error'
if the connection is closed.
`interact()'
Interaction function, emulates a very dumb telnet client.
`mt_interact()'
Multithreaded version of `interact()'.
`expect(list[, timeout])'
Read until one from a list of a regular expressions matches.
The first argument is a list of regular expressions, either
compiled (`re.RegexObject' instances) or uncompiled (strings).
The optional second argument is a timeout, in seconds; the default
is to block indefinitely.
Return a tuple of three items: the index in the list of the first
regular expression that matches; the match object returned; and
the text read up till and including the match.
If end of file is found and no text was read, raise `EOFError'.
Otherwise, when nothing matches, return `(-1, None, TEXT)' where
TEXT is the text received so far (may be the empty string if a
timeout happened).
If a regular expression ends with a greedy match (e.g. ".*") or if
more than one expression can match the same input, the results are
indeterministic, and may depend on the I/O timing.