Index: tst_post/test.py
===================================================================
diff -u -r2e9bd436a922111b4c4d5aedd4c1f7d9769aaf5c -rdda88d0c02c9a8af4b3bdea52106e6825f91ff09
--- tst_post/test.py	(.../test.py)	(revision 2e9bd436a922111b4c4d5aedd4c1f7d9769aaf5c)
+++ tst_post/test.py	(.../test.py)	(revision dda88d0c02c9a8af4b3bdea52106e6825f91ff09)
@@ -51,11 +51,12 @@
     """
     progress = pyInt(get_progress())-1
     if final_msg_posted is True:
-        test.xcompare(value, progress, f"Final value {value} should " +
-                                "not reflect on the progress bar")
+        test.xcompare(value, progress, "Final value " +
+                      "{value} should ".format(value=value) +
+                      "not reflect on the progress bar")
     elif final_msg_posted is False:
-        test.compare(value, progress, f"{value} should reflect "+
-                                "on progress bar")
+        test.compare(value, progress, "{value}".format(value=value) +
+                     " should reflect on progress bar")
     
 
 def post_a_message_and_verify_progress_and_completion(msgs_and_conditions):