diff --git a/test_gui.py b/test_gui.py
index 299a619..f6aed87 100644
--- a/test_gui.py
+++ b/test_gui.py
@@ -2,37 +2,37 @@ import tkinter as tk
 
 w = tk.Tk()
 
-p_name = tk.StringVar(w)
-cpus = tk.StringVar(w)
-cyc = tk.StringVar(w)
-N_ts = tk.StringVar(w)
-T_cyc = tk.StringVar(w)
-
-def getvars(p_name, cpus, cyc, N_ts, T_cyc):
-     p_name = p_name.get()
-     cpus = cpus.get()
-     cyc = cyc.get()
-     N_ts = N_ts.get()
-     T_cyc = T_cyc.get()
-
-     print(T_cyc)
+p_nameVar = tk.StringVar(w)
+cpusVar = tk.StringVar(w)
+cycVar = tk.StringVar(w)
+N_tsVar = tk.StringVar(w)
+T_cycVar = tk.StringVar(w)
+settings = 0
+def getvars():
+     p_name = p_nameVar.get()
+     cpus = cpusVar.get()
+     cyc = cycVar.get()
+     N_ts = N_tsVar.get()
+     T_cyc = T_cycVar.get()
+     settings = (p_name, cpus, cyc, N_ts, T_cyc)
+     print(settings)
 
 field1 = tk.Label(w, text="project name").grid(row=0, column=0)
-entry1 = tk.Entry(w, textvariable = p_name).grid(row=0, column=1)
+entry1 = tk.Entry(w, textvariable = p_nameVar).grid(row=0, column=1)
 
 field2 = tk.Label(w, text="CPUs").grid(row=1, column=0)
-entry2 = tk.Entry(w, textvariable = cpus).grid(row=1, column=1)
+entry2 = tk.Entry(w, textvariable = cpusVar).grid(row=1, column=1)
 
 field3 = tk.Label(w, text="number of cycles").grid(row=2, column=0)
-entry3 = tk.Entry(w, textvariable = cyc).grid(row=2, column=1)
+entry3 = tk.Entry(w, textvariable = cycVar).grid(row=2, column=1)
 
 field4 = tk.Label(w, text="number of time steps").grid(row=3, column=0)
-entry4 = tk.Entry(w, textvariable = N_ts).grid(row=3, column=1)
+entry4 = tk.Entry(w, textvariable = N_tsVar).grid(row=3, column=1)
 
 field5 = tk.Label(w, text="cycle periode").grid(row=4, column=0)
-entry5 = tk.Entry(w, textvariable = T_cyc).grid(row=4, column=1)
+entry5 = tk.Entry(w, textvariable = T_cycVar).grid(row=4, column=1)
 
-button = tk.Button(w, text="Get vars", command=getvars(p_name, cpus, cyc, N_ts, T_cyc)).grid(row=5)
+button = tk.Button(w, text="Get vars", command=getvars).grid(row=5)
 
 
 w.mainloop()