telnetlib.Telnet.expect¶

Telnet.expect(list, timeout=None)[source]¶

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; default is no timeout.

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 EOF is read 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 undeterministic, and may depend on the I/O timing.