[ python-Bugs-1101756 ] popen4/cygwin ssh hangs

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Bugs item #1101756, was opened at 2005-01-13 07:21
Message generated for change (Settings changed) made by jlt63
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Category: Threads
Group: None
>Status: Closed
>Resolution: Works For Me
Priority: 5
Submitted By: Ph.E (ph_e)
Assigned to: Jason Tishler (jlt63)
Summary: popen4/cygwin ssh hangs

Initial Comment:
The following python code hangs on executing cmd2
(works with cmd1).
The commands works fine when executed on a shell.
I have the same problem with Python 2.3.4 and 2.4
(Windows).
I use the latest Cygwin binaries 


import os

cmd1 = "bin\ssh"
cmd2 = "bin\ssh -i id_dsa admin at myserver.com uptime"

def docmd(cmd):
    print "Doing %s ..." % cmd
    
    (stdin, stdouterr) = os.popen4(cmd)
    
    for line in stdouterr.readlines():
        print line
    
    stdin.close()
    stdouterr.close()
    print "Done."

if __name__ == '__main__':
    docmd(cmd1)
    docmd(cmd2)

Give me some advice for testing (popen, linux, ...).


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>Comment By: Jason Tishler (jlt63)
Date: 2005-10-03 04:36

Message:
Logged In: YES 
user_id=86216

AFAICT, this works for me under Cygwin 1.5.18 and Python
2.4.1:

$ python /tmp/sf.py
Doing ssh ...
usage: ssh [-1246AaCfgkMNnqsTtVvXxY] [-b bind_address] [-
c cipher_spec]

           [-D port] [-e escape_char] [-F configfile]

           [-i identity_file] [-L [bind_address:]port:host:hostport]

           [-l login_name] [-m mac_spec] [-O ctl_cmd] [-o 
option] [-p port]

           [-R [bind_address:]port:host:hostport] [-S ctl_path]

           [user@]hostname [command]

Done.
Doing ssh -i id_rsa server uptime ...
  8:29am  up 1 day(s),  1:53,  5 users,  load average: 0.41, 
0.52, 0.59

Done.

Note I changed cmd1 and cmd2 also follows:

cmd1 = "ssh"
cmd2 = "ssh -i id_rsa server uptime"

I'm closing this bug report. Please reopen if this is still
a problem.

----------------------------------------------------------------------

Comment By: Neal Norwitz (nnorwitz)
Date: 2005-09-29 21:36

Message:
Logged In: YES 
user_id=33168

Jason?

----------------------------------------------------------------------

Comment By: Ph.E (ph_e)
Date: 2005-01-13 08:33

Message:
Logged In: YES 
user_id=1196530

The same code in Linux Python 2.3.4 works fine.

----------------------------------------------------------------------

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