hello,
i want to use rsync for remote file transfer via popen, but couldnt pass the
Password yet.
here`s what i did
cmd = 'rsync -av config root (AT) 10 (DOT) 1.1.1:/tmp/.'
f = os.popen(cmd,'w')
f.write('1234')
#not worked
f.write('1234\n')
#not worked
every time i see "Password:" line, then i tried popen2
st_out, st_in = popen2.popen2(cmd)
st_in.write('1234')
#not worked
st_in.write('1234\n')
#not worked again
i got bored to see "Password:" line every time and did st_out.close() to not
to see stdout messages from rsync, but even this did not work.
also i tried popen3() function same way.
what should i do?
Thanks.

hi,
i have found expect method for this purpose. i`m trying to use pexpect but
following code gives me an something strange as a result.
# The CDE
import pexpect
cmd = '/usr/bin/rsync config root (AT) 10 (DOT) 1.1.2:/tmp/.'
#cmd = 'ssh root (AT) 10 (DOT) 1.1.2'
child = pexpect.spawn(cmd)
passwd = 'qwe123'
try:
i = child.expect(['Password:','Password: ',pexpect.EF,
pexpect.TIMEUT])
if i == 0: child.sendline(passwd)
elif i == 1: print 1
elif i == 2: print 2
elif i == 3: print 3
except EF: print 'EF'
except TIMEUT: print 'TIMEUT'
print 'finished'

# The result
finished
Exception pexpect.ExceptionPexpect: <pexpect.ExceptionPexpect instance at
0xb7dfab2cin <bound method spawndel__ of <pexpect.spawn instance at
0xb7db3a2c>ignored

Sinan Nalkaya <orome.the.valar (AT) gmail (DOT) comwrites:

hi,
i have found expect method for this purpose. i`m trying to use pexpect but
following code gives me an something strange as a result.

When working with pexpect, logging the entire conversation is extremely
useful fro debugging

import pexpect
cmd = '/usr/bin/rsync config root (AT) 10 (DOT) 1.1.2:/tmp/.'
#cmd = 'ssh root (AT) 10 (DOT) 1.1.2'
child = pexpect.spawn(cmd)

Add "child.logfile = sys.stdout" here and check what's going on.

Ganesan

thanks for reply, i add the line you suggested, thats what i get

sinan@sinan:~/tmp/multi_server$ python deneme.py
Password: qwe123
finished
Exception pexpect.ExceptionPexpect: <pexpect.ExceptionPexpect instance at
0xb7e0cb2cin <bound method spawndel__ of <pexpect.spawn instance at
0xb7dc5a2c>ignored

does rsync may cause a problem while trying to fork-exec ssh ?

Add "child.logfile = sys.stdout" here and check what's going on.

Ganesan

sinan nalkaya <orome.the.valar (AT) gmail (DOT) comwrites:

thanks for reply, i add the line you suggested, thats what i get
sinan@sinan:~/tmp/multi_server$ python deneme.py
Password: qwe123
finished

Ah, got it. You didn't wait for the rsync process to complete. Put the body
of the "try:" in a while loop.

Ganesan

finally following code works,

import pexpect, sys
cmd = '/usr/bin/rsync config root (AT) 10 (DOT) 1.1.2:/tmp/.'
#cmd = 'ssh root (AT) 10 (DOT) 1.1.2'
child = pexpect.spawn(cmd)
child.logfile = sys.stdout
passwd = 'qwe123'
i = 0
try:
while i == 0:
i =
child.expect(['Password:','Password: ',pexpect.EF,pexpect.TIMEUT])
if i == 0: child.sendline(passwd)
elif i == 1: print 1
elif i == 2: print 2
elif i == 3: print 3
except EF: print 'EF'
except TIMEUT: print 'TIMEUT'

i put while True: before top of line, i=child.expect() . it worked, the file
has gone but also it goes into loop with many EF result, i tried the
os.waitpid() function with child.pid but didnt help me. still couldn`t get
the problem.
thanks for help

Thursday 15 June 2006 12:04, Ganesan Rajagopal wrote:
Ah, got it. You didn't wait for the rsync process to complete. Put the body
of the "try:" in a while loop.

Ganesan

sinan nalkaya <orome.the.valar (AT) gmail (DOT) comwrites:

child.expect(['Password:','Password: ',pexpect.EF,pexpect.TIMEUT])
if i == 0: child.sendline(passwd)
elif i == 1: print 1
elif i == 2: print 2
elif i == 3: print 3

You don't need the second pattern, the first pattern will catch the second
case also. You also need to break when i == 2 or i == 3.

Ganesan