auto save

client.py

@@ -29,6 +29,7 @@ class Note():
             self.y += 30
     def get_info(self):
         info = self.ent.get()
+        if info != "":
             self.ent.delete("0",END)
             alist.append(info)
             self.canvas.create_text(40,self.y,text=info,