Changed method for obtaining memory info

main.py

@@ -59,10 +59,8 @@ def monitorHost(stop_event):
 
         load1, load5, load15 = psutil.getloadavg() # this takes time to warm up if not running script on *nix 
         loadavg = round((load1/os.cpu_count()) * 100, 2)
-
-        total_memory, used_memory, free_memory = map(
-                int, os.popen('free -t -m').readlines()[-1].split()[1:])
-        memory = round((used_memory/total_memory) * 100, 2)
+        
+        memory = psutil.virtual_memory().percent
 
         print("CPU %: " + str(loadavg))
         print("Memory %: " + str(memory))