nx.os.and.cisco.nexus.switching.2nd.edition.1587143046

if protocol == "telnet":
c = "/isan/bin/vsh -c 'telnet " + host + "
vrf " + vrf + "'"
else:
c = "/isan/bin/vsh -c 'ssh " + username +
"@" + host + " vrf " +
vrf+ "'"
cmd = pexpect.spawn(c)
\
expect_list = [ \
"(?i)re you sure you want to continue connecting",
"(?i)ogin:", \
"(?i)assword:", \
"(?i)(?:permission denied)|(?:login incorrect)", \
"(?i)onnection refused", \
pexpect.TIMEOUT, \
"[#|$]", \
pexpect.EOF
]
i = cmd.expect(expect_list, timeout=login_timeout)
while i != None:
if i == 0:
cmd.sendline("yes")
i = cmd.expect(expect_list,
timeout=login_timeout)
elif i == 1:
cmd.sendline(username)
i = cmd.expect(expect_list,
timeout=login_timeout)
elif i == 2:
cmd.sendline(password)
i = cmd.expect(expect_list,
timeout=login_timeout)
elif i == 3:
raise
pexpect.ExceptionPexpect("Password was bad. Permis
sion Denied")
i = None
elif i == 4:
raise
pexpect.ExceptionPexpect("Could not connect to the
host")
i = None