adding str() within print statements

xtreemfs_client/OSDManager.py

@@ -240,9 +240,9 @@ class OSDManager(object):
                 if process[2] != 0:
                     errored_deletions.append(process[0])
                     print("errored command: ")
-                    print("command: " + process[0])
-                    print("stdoud: " + process[1][0])
-                    print("stderr: " + process[1][1])
+                    print("command: " + str(process[0]))
+                    print("stdoud: " + str(process[1][0]))
+                    print("stderr: " + str(process[1][1]))
                     print("retcode: " + str(process[2]))
 
             if len(errored_deletions) == 0: