CODEWITHSUNDEEP
pythontelnet
jogndogn
jogndogn

Reputation: 13

telnetlib Read_Until With regexs

I want to read until for Multiple Prompts in the TelnetLib Library.

tn.read_until(b"login: ")

Thats what im currently using but as you can see it only waits for "login:" Prompt.

Now in perl the solution for me was:

$t->waitfor('/[:>%\$#]/');

Any way i can convert the code?

Upvotes: 1

Views: 2513

Answers (1)

kitti
kitti

Reputation: 14814

From https://docs.python.org/2/library/telnetlib.html#telnetlib.Telnet.expect:

Telnet.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 (regex objects) 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 (such as .*) or if more than one expression can match the same input, the results are non-deterministic, and may depend on the I/O timing.

Upvotes: 2

Related Questions