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Issue #127 resolved

pexpect on OpenIndiana via cron (/dev/tty issue)

Kashif Salman
created an issue

I am using pexpect 3.1 on OpenIndiana (Solaris fork, x86 architecture), and it works fine on the interactive shell. But when I try to use it via cron it has issues with /dev/tty. I thought this was an issue for Solaris but had been fixed?

Specifically, the error is:

OSError: [Errno 6] No such device or address: '/dev/tty'

Rest of the trace:

p=pexpect.spawn('ssh -oUserKnownHostsFile=/dev/null -oStrictHostKeyChecking=no %s@%s' % ('root', host), timeout=60)
  File "/usr/lib/python2.6/site-packages/pexpect/__init__.py", line 485, in __init__
    self._spawn(command, args)
  File "/usr/lib/python2.6/site-packages/pexpect/__init__.py", line 607, in _spawn
    self.pid, self.child_fd = self.__fork_pty()
  File "/usr/lib/python2.6/site-packages/pexpect/__init__.py", line 668, in __fork_pty
  File "/usr/lib/python2.6/site-packages/pexpect/__init__.py", line 722, in __pty_make_controlling_tty
    fd = os.open("/dev/tty", os.O_WRONLY)
OSError: [Errno 6] No such device or address: '/dev/tty'
Traceback (most recent call last):
  File "/root/nologify.py", line 25, in <module>
    p.expect('\r\n.+]# ')
  File "/usr/lib/python2.6/site-packages/pexpect/__init__.py", line 1418, in expect
    timeout, searchwindowsize)
  File "/usr/lib/python2.6/site-packages/pexpect/__init__.py", line 1433, in expect_list
    timeout, searchwindowsize)
  File "/usr/lib/python2.6/site-packages/pexpect/__init__.py", line 1521, in expect_loop
    raise EOF(str(err) + '\n' + str(self))
pexpect.EOF: End of File (EOF). Very slow platform.
<pexpect.spawn object at 0x8181d6c>
version: 3.1
command: /usr/bin/ssh
args: ['/usr/bin/ssh', '-oUserKnownHostsFile=/dev/null', '-oStrictHostKeyChecking=no', 'root@host1']
searcher: <pexpect.searcher_re object at 0x8181dec>
buffer (last 100 chars): ''
uname -a
SunOS veal 5.11 oi_151a i86pc i386 i86pc Solaris
ls -l /dev/tty
lrwxrwxrwx 1 root root 26 2012-01-11 05:38 /dev/tty -> ../devices/pseudo/sy@0:tty

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