I'm trying to programmatically create a telnet session. Within the
interactive environment, this appears to work very well as server messages
can be saved as strings:
$ python
Python 2.7.1 (r271:86832, Sep 3 2011, 01:32:33)
[GCC 4.2.1 20070719 ] on openbsd5
Type "help", "copyright", "credits" or "license" for more information.
>>> import telnetlib
>>> tn = telnetlib.Telnet('gmail-smtp-in.l.google.com', 25)
>>> s = tn.read_very_eager()
>>> print s
220 mx.google.com ESMTP r70si1582241yhm.54
>>> tn.write("helo\n")
>>> s = tn.read_very_eager()
>>> print s
250 mx.google.com at your service
>>> tn.write("quit\n")
>>> s = tn.read_very_eager()
>>> print s
221 2.0.0 closing connection r70si1582241yhm.54
>>>
$
These server response can then be parsed to determine what commands need to
be provided next.
Yet when I execute the same methods in a script, I am getting nothing in
response:
$ cat script.py
#!/usr/bin/env python
import telnetlib
if __name__ == '__main__':
print 'begin'
tn = telnetlib.Telnet('gmail-smtp-in.l.google.com', 25)
s = tn.read_very_eager()
print s
tn.write("helo\n")
s = tn.read_very_eager()
print s
tn.write("quit\n")
s = tn.read_very_eager()
print s
print 'end'
$ python script.py
begin
end
$
What do I need to do to emulate the IDE environment? If I am needing to
capture stdout, it isn't readily apparent.
Any insight you can share would be greatly appreciated.
Jim
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