Due to an Internal Server Error with http://sldn.softlayer.com/reference/services/SoftLayer_User_Customer/getLoginAttempts and http://sldn.softlayer.com/reference/services/SoftLayer_Account/getUsers, this is a temporary workaround to grab the last 5 login attempts for each portal user.

last5logins.py

#Last 5 login attempts for User1
#- Successful login from 123.45.67.89 at 2013-11-28T15:29:32-06:00
#- Failed login from 123.45.67.89 at 2013-11-28T15:29:23-06:00
#- Failed login from 123.45.67.89 at 2013-11-28T15:29:22-06:00
#- Successful login from 123.45.67.89 at 2013-11-27T15:13:49-06:00
#- Successful login from 123.45.67.89 at 2013-11-26T08:35:12-06:00
#
#Last 5 login attempts for User2
#- Successful login from 123.45.67.89 at 2013-11-16T04:51:42-06:00
#- Successful login from 123.45.67.89 at 2013-11-16T04:50:29-06:00
#- Successful login from 123.45.67.89 at 2013-11-11T03:45:22-06:00
#- Failed login from 123.45.67.89 at 2013-11-11T03:45:17-06:00
#
#Last 5 login attempts for User3
#- Successful login from 123.45.67.89 at 2013-11-06T08:57:15-06:00


import SoftLayer

#apiconfig is a file containing my apiUser and apiKey
from apiconfig import *

client=SoftLayer.Client(username=apiUser,api_key=apiKey)

#Set up our users list. We need an object mask to grab the 'users' from the SoftLayer Account object, and the loginAttempts from within the user list.

users_list = client['Account'].getObject(mask="mask[users[loginAttempts]]")
for user in users_list['users']:
	if user['loginAttempts']:
		print "\nLast 5 login attempts for %s" % (user['username'])
		for login in user['loginAttempts'][:5]:
			print "- %s login from %s at %s" % ('Successful' if login['successFlag'] else 'Failed', login['ipAddress'],login['createDate'])