diff --git a/samples/vsphere/sso/README.md b/samples/vsphere/sso/README.md
index 271089db..1d5aae48 100644
--- a/samples/vsphere/sso/README.md
+++ b/samples/vsphere/sso/README.md
@@ -1,9 +1,14 @@
 This directory contains samples for Platform Service Controller, SSO and Lookup Service APIs:
 
+The vSphere Automation SDK for Python samples use the vSphere Automation Lookup Service
+to obtain the URLs for other vSphere Automation services (SSO, vAPI, VIM, SPBM, etc.).
+The SDK contains the Lookup Service WSDL files. The samples use the python SUDS client
+for accessing the lookup service. The Lookup Service WSDL files are located in wsdl/ directory.
+
 Running the samples
 
     * $ cd /path/to/vsphere-automation-sdk-python-samples/bin
-    * $ ./run_sample.sh ../samples/vsphere/tagging/tagging_workflow.py --server <vCenter Server IP> --username <username> --password <password> --clustername <clustername> --categoryname <categoryname> --categorydesc <categorydesc> --tagname <tagname> -tagdesc <tagdesc> -v
+    * $ ./run_sample.sh ../samples/vsphere/sso/print_services.py --lswsdlurl file:///path/to/vsphere-automation-sdk-python-samples/samples/vsphere/sso/wsdl/lookupservice.wsdl --lssoapurl https://<sso_server>/lookupservice/sdk -v
 
 * Testbed Requirement:
     - 1 vCenter Server
diff --git a/samples/vsphere/sso/print_services.py b/samples/vsphere/sso/print_services.py
index 17aac42b..68cb054c 100644
--- a/samples/vsphere/sso/print_services.py
+++ b/samples/vsphere/sso/print_services.py
@@ -32,8 +32,13 @@ class PrintServices(object):
     def options(self):
         self.argparser = argparse.ArgumentParser(description=self.__doc__)
         # setup the argument parser
-        self.argparser.add_argument('-lswsdlurl', '--lswsdlurl', help='Lookup service WSDL URL')
-        self.argparser.add_argument('-lssoapurl', '--lssoapurl', help='Lookup service SOAP URL')
+        self.argparser.add_argument('-w', '--lswsdlurl',
+                                    help='Lookup service WSDL URL')
+        self.argparser.add_argument('-s', '--lssoapurl',
+                                    help='Lookup service SOAP URL')
+        self.argparser.add_argument('-v', '--skipverification',
+                                    action='store_true',
+                                    help='Do not verify server certificate')
         self.args = self.argparser.parse_args()   # parse all the sample arguments when they are all set
 
     def setup(self):
@@ -45,9 +50,13 @@ class PrintServices(object):
         assert self.lssoapurl is not None
         print('lssoapurl: {0}'.format(self.lssoapurl))
 
+        self.skip_verification = self.args.skipverification
+
     def execute(self):
         print('Connecting to lookup service url: {0}'.format(self.lssoapurl))
-        lookupservicehelper = LookupServiceHelper(wsdl_url=self.lswsdlurl, soap_url=self.lssoapurl)
+        lookupservicehelper = LookupServiceHelper(wsdl_url=self.lswsdlurl,
+                                                  soap_url=self.lssoapurl,
+                                                  skip_verification=self.skip_verification)
         lookupservicehelper.connect()
 
         # print the PSC nodes and SSO service endpoint URLs