make settings persistent

test_gui.py

@@ -7,8 +7,9 @@ cpusVar = tk.StringVar(w)
 cycVar = tk.StringVar(w)
 N_tsVar = tk.StringVar(w)
 T_cycVar = tk.StringVar(w)
-settings = 0
+settings=[]
 def getvars():
+     global settings
      p_name = p_nameVar.get()
      cpus = cpusVar.get()
      cyc = cycVar.get()
@@ -36,3 +37,5 @@ button = tk.Button(w, text="Get vars", command=getvars).grid(row=5)
 
 
 w.mainloop()
+
+print(settings)