telnet to Cognex In-Sight 4001 camera
chris.annin at gmail.com
chris.annin at gmail.com
Mon Feb 25 16:52:43 EST 2013
On Monday, February 25, 2013 1:15:54 PM UTC-8, MRAB wrote:
> On 2013-02-25 20:27, Chris Annin wrote:
>
> > Ive tried: read_until("Login: "), read_until("User: ") and read_all()
>
> > all 3 ways return the same thing: "Welcome to In-Sight(R) 4001 Session
>
> > 1\r\nUser:"
>
> >
>
> [snip]
>
> Does the returned string end exactly with "User:" (no space at the
>
> end)? I ask because you're asking it to read until "User: " (space at
>
> the end).
yes it does have the space - sorry. does it make a difference if I use tn.read_until vs tn.read_all? will it close the connection or not accept a write command if I dont read_until? the fact that I get a traceback error when I read_until and I get ",,," when I use read_all - does this mean the connection has been closed?
also when I try tn.open(host) it will give me the welcome screen with the words "session 1" included in the string. if I then immediately try tn.open(host) again it will give me the same welcome message with "session 1" could the connection be closing before I get a chance to write the user name?
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