Search by MAC address on Juniper switches

import paramiko
import time
import sys
import json
import threading
import logging
login = 'user1'
password = 'pass1234'
searchpass = []
port = 22classLogPipe(threading.Thread):def__init__(self, level):
		threading.Thread.__init__(self)
		self.daemon = False
		self.level = level
		self.fdRead, self.fdWrite = os.pipe()
		self.pipeReader = os.fdopen(self.fdRead)
		self.start()
	deffileno(self):return self.fdWrite
	defrun(self):for line in iter(self.pipeReader.readline, ''):
			logging.log(self.level, line.strip('\n'))
		self.pipeReader.close()
	defclose(self):
		os.close(self.fdWrite)
defexecute_ssh_command(host, port, username, password, command):try:
        # Create the SSH client.
        ssh = paramiko.SSHClient()
        ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
        # Connect to the host.
        ssh.connect(host, port, username, password, look_for_keys=False)
        # Send the command (non-blocking)
        stdin, stdout, stderr = ssh.exec_command(command)
        # Wait for the command to terminatewhilenot stdout.channel.exit_status_ready() andnot stdout.channel.recv_ready():
            time.sleep(1)
        stdoutstring = stdout.readlines()
        stderrstring = stderr.readlines()
        return stdoutstring, stderrstring
    finally:
        if ssh isnotNone:
            # Close client connection.
            ssh.close()
defsendCommand(hostname,command):
	returnvalue = 0
	logging.info('Host '+hostname+', command: '+command)
	Try:
#add .mydomain for FQDN
		(stdoutstring, stderrstring) = execute_ssh_command(hostname+'.mydomain', port, login, password, command+'\n')
		if (len(stdoutstring)>0):
			logging.info(stdoutstring[0])
		if (len(stderrstring)>0):
			logging.info(stderrstring[0])
	except Exception as e:
		return returnvalue
	else:
		returnvalue = stdoutstring[0]
	finally:
		return returnvalue
defcheckswitch(hostname,mac_addr):try:
		returnvalue = {}
		returnvalue['host']=hostname
		answer = sendCommand(hostname,'show ethernet-switching table | match '+mac_addr)
		if(answer!=0):
			iface = answer.split()[4]
			returnvalue['iface']=iface
			#cut .0 prefix in the interface name
			answer = sendCommand(hostname,'show interfaces '+iface[:-2]+' descriptions | last 1 | no-more')
			iface = answer.split()
			if(len(iface)>2):
				iface=iface[3]
				returnvalue['description']=iface
			else:
				returnvalue['description']='none'
			searchpass.append(returnvalue)
			if (iface[:3]=='SW>'):
				checkswitch(iface[3:],mac_addr)
		else:
			returnvalue['iface']='none'
			searchpass.append(returnvalue)
	except Exception as e:
		logging.info(e)
defmain(argv):
	mac_addr = argv[0]
	#configure log
	logging.basicConfig(filename='/var/log/findmac.log', level=logging.INFO, format='%(asctime)s %(message)s')
	logging.info('Find MAC: '+mac_addr)
	checkswitch('CORE',mac_addr)
	for switch in searchpass:
		print (json.dumps(switch, ensure_ascii=False))
if __name__ == "__main__":
	main(sys.argv[1:])