python - scrollbar for labels frame in tkinter -

i trying create scroll bar window created in gui using tk.toplevel. frame fills long grids of strings added 1 buy one. rest of gui allows user write series of fields displayed 1 after using grid.

the data might this:

sadas sfafaf fsaafads fdsafsf dfsfdsf fssfs fsfsfsfs fsfsfs sfsfsfs fsssfsfsf

sadas sfafaf fsaafads fdsafsf dfsfdsf fssfs fsfsfsfs fsfsfs sfsfsfs fsssfsfsf

sadas sfafaf fsaafads fdsafsf dfsfdsf fssfs fsfsfsfs fsfsfs sfsfsfs fsssfsfsf

i used post: adding scrollbar group of widgets in tkinter guide right now. currently, when open window scroll bar appears on left side. add line gui freezes , have close it.

here relevant code:

class data_popup():     def __init__(self, parent):         self.parent = parent         self.top = tk.toplevel(parent)         self.top.title("current data")         self.top.protocol('wm_delete_window', self.stop_close)         #frames         self.header_labels_frame = tk.frame(self.top)         self.header_labels_frame.pack(side = tk.top)         self.data_frame_1 = tk.frame(self.top)         self.data_frame_1.pack(side = tk.bottom)                 self.header_labels_list = []           self.data_canvas = tk.canvas(self.data_frame_1, borderwidth = 0)         self.data_frame = tk.frame(self.data_canvas)         self.scrollbar = tk.scrollbar(self.data_frame, orient = 'vertical', command = self.data_canvas.yview)         self.data_canvas.configure(yscrollcommand = self.scrollbar.set)         self.scrollbar.pack(side = 'right', fill = 'y')         self.data_canvas.pack(side = "bottom", fill = 'both', expand = true)         self.data_canvas.create_window((4,4), window = self.data_frame, anchor = 'nw', tags = "self.frame")         self.data_frame.bind("<configure>", self.myfunction)         self.create_header()         self.data_row_list = list()      def myfunction(self, event):         self.data_canvas.configure(scrollregion=self.data_canvas.bbox("all")) 

often, when gui freezes in manner describe, because use both grid , pack in same frame. aren't showing code add frame, guess is, happening.