Python Mongodb Backup to use sftp and sendmail to alert

pyback.py

#!/usr/bin/python

# import modules used here
import zipfile
import os
import shutil
import sys
import subprocess
import datetime
import pysftp as sftp
import re
from email.mime.text import MIMEText

def doBackup():
	db = sys.argv[1]
	print "Getting ready to backup db", db + "..."
	dumpPath = os.path.abspath("tmp_dmp")
	if not os.path.exists(dumpPath): os.makedirs(dumpPath)
	backup_log = subprocess.Popen(['mongodump -o ' + dumpPath + ' -d' + db], stdout=subprocess.PIPE, shell=True).communicate()[0]
	
	print "Dumped via shell, zipping..."
	zipName = "MongoDump_" + str(datetime.datetime.now())
	zipDir(zipName, dumpPath)

	print "Zipped. Now transferring..."
	try:
		connection = sftp.Connection(host="0.0.0.0", username="example", password="example")
		szip = re.sub(':', '-', zipName + ".zip")
		print "Storing", szip, "on remote server..."
		connection.put("/" + zipName + ".zip", szip)
		connection.close()
		print "Completed transfer!"
		msg = MIMEText("Completed backup of " + sys.argv[1] + " mongo db @ " + str(datetime.datetime.now()) + ".\r\nNo further action is required.")
		msg["From"] = "example@example.com"
		msg["To"] = "example@example.com"
		msg["Subject"] = "Successful Backup"
		p = subprocess.Popen(["/usr/sbin/sendmail", "-t"], stdin=subprocess.PIPE).communicate(msg.as_string())
	except Exception, e:
		print str(e)
		msg = MIMEText("Failed to store backup.\r\nERR: " + str(e))
		msg["From"] = "example@example.com"
		msg["To"] = "example@example.com"
		msg["Subject"] = "Failed Backup"
		p = subprocess.Popen(["/usr/sbin/sendmail", "-t"], stdin=subprocess.PIPE).communicate(msg.as_string())

	cleanUp(zipName, dumpPath)

def cleanUp(z, d):
	print "Cleaning up..."
	os.remove(os.path.abspath(z + ".zip"))
	shutil.rmtree(d)

def zipDir(foldername, target_dir):
	zipobj = zipfile.ZipFile(foldername + '.zip', 'w', zipfile.ZIP_DEFLATED)
	rootlen = len(target_dir) + 1
	for base, dirs, files in os.walk(target_dir):
		for file in files:
			fn = os.path.join(base, file)
			zipobj.write(fn, fn[rootlen:])

if __name__ == '__main__':
	doBackup()