netmiko

Netmiko - SSH Network Device Class

from netmiko import ConnectHandler

# Dictionary of device info. Port is optional if using standard 22
myrouter = {
	'device_type': 'cisco_ios',
	'ip': '10.11.12.55',
	'username': 'myuser',
	'password': 'mypass',
	'port': 22,
}


# The ** passes the dictionary as arguments into the ConnectHandler class
router_conn = ConnectHandler(**myrouter)

# To see the prompt you are at
router_conn.find_prompt()

# To go into config mode
router_conn.config_mode()

# To check if you are in config mode, returns boolean
router_conn.check_config_mode()

# To exit config mode
router_conn.exit_config_mode()

# To send a command. This automatically adds the 'new line \n'
# The output removes the echo of the command and the trailing prompt of the command
# Long commands work automatically, netmiko takes care of disabling paging
# send_command() is timing based (i.e. uses a lot of sleeps)
# send_command_expect() by default will search for the router prompt at the end of the output.
# you can add an argument delay_factor to send_command to make it wait longer i.e.
# send_command(delay_factor=.5) will cause it to delay meaningfully longer.
output = router_conn.send_command("show ip int brief")
	or
output = router_conn.send_command_expect("show ip int brief")
print output

# To send a set of commands you create the commands in a list
config_commands = ['logging buffered 20000', 'logging on']
output = router_conn.send_config_set(config_commands)

# To change config using a file as the source
# The commands are one per line, no commas, quotes, etc.
router_conn.send_config_from_file(config_file='config_file.txt')

# To save the configuration you have to manually do that
router_conn.send_command("wr mem")