import tkinter as tk
from tkinter import filedialog


class Application(tk.Frame):
    def __init__(self, parent):
        tk.Frame.__init__(self, parent)
        self.parent = parent
        self.pack()
        self.createWidgets()

    def createWidgets(self):

        #save button
        self.saveLabel = tk.Label(self.parent, text="Save File", padx=10, pady=10)
        self.saveLabel.pack()
        #I'm trying to get command to call the test function from documentMaker
        self.saveButton = tk.Button(self.parent, text = "Save", command = hello)
        self.saveButton.pack()


class documentMaker():
    def test(self):

      print ("hello people")

root = tk.Tk()
app = Application(root)
app.master.title('Sample application')
object = documentMaker()
hello = object.test()


#object.convert()
app.mainloop()