python 3.x - tkinter messagebox askyesno starnge response -

as per request bryan oakley,fuller code pertaining question testerday ( don't know how without question)

    #!/usr/local/bin/python3     # -*- coding: utf-8 -*-       import ast     tkinter import *     import tkinter.font     tkinter import messagebox     tkinter.scrolledtext import scrolledtext     tkinter import ttk     tkinter.ttk import *       acronyms = {}     open('new_dict.py','r', encoding = "utf-8") dic:         acronyms = ast.literal_eval(dic.read())     def find_acronym():          found = false          # if search term in database returns acronym , expansion         abbr, text in acronyms.items():             if abbr == search_analyte.get():                 expansion.insert(0.0,'{0:>6}: {1: <10}\n'.format(abbr, text))                 found = true             elif str(search_analyte.get()) in text:                 expansion.insert(0.0,'{0:>6}: {1: <10}\n'.format(abbr, text))                 found = true          # if search term not in database             if not found:             expansion.insert              messagebox.askyesno(0.0,'"{0}"{1} \n {2}\n'.format(search_analyte.get(),'  not in database.','add,if appropriate'))             if messagebox.askyesno() == true:                 open_second()             else:                 open_first()     def open_second(): # opens second tab         referwork.select(f2)     def open_first(): # opens first tab         referwork.select(f1)      root =tk()     root.title('find/translate acronyms referred work')      root.configure(bg='darkgreen')     #state variables app     search_analyte = stringvar() # search criterion     expanded_text=stringvar()    # expanded text matching acronym     # set notebook     referwork = ttk.notebook(root)     f1 = ttk.frame(referwork)     f2 = ttk.frame(referwork)     referwork.add(f1, text="search", padding = 1)     referwork.add(f2, text="add/delete", padding = 1)     #referwork.configure (height = 500, width = 800)     referwork.grid(row=0, column=0, sticky=(n,w,s,e))     # contents of notebook pages     # search page     acronym_entry =entry(f1,textvariable=search_analyte)     acronym_entry.grid(row=1, column = 1, sticky = w)     acronym_entry.focus_set()     expansion_lbl = label(f1, text='result')     expansion_lbl.grid(row=2, column =0, sticky = w)     expansion= scrolledtext(f1,wrap=word )     expansion.configure(height = 10, width = 50)     expansion.grid(row=2, column = 1, columnspan = 2, sticky = w)     translate_button = ttk.button(f1,text="search",command=find_acronym )     translate_button.grid(row=3, column = 0, sticky =w)      root.mainloop()  expanded_text=stringvar()    # expanded text matching acronym add_expansion= stringvar()   # expanded text added. not required deletion edit_acronym = stringvar     # acronym added ,edited or deleted  # set notebook referwork = ttk.notebook(root, style =".tnotebook") f1 = ttk.frame(referwork) f2 = ttk.frame(referwork) referwork.add(f1, text="search", padding = 1) referwork.add(f2, text="add/delete", padding = 1)  #referwork.configure (height = 500, width = 800) referwork.grid(row=0, column=0, sticky=(n,w,s,e))  # contents of notebook pages # search page acronym_entry =entry(f1,textvariable=search_analyte, style =".tentry") acronym_entry.grid(row=1, column = 1, sticky = w) acronym_entry.focus_set()  expansion_lbl = label(f1, text='result',font=root.customfont ) expansion_lbl.grid(row=2, column =0, sticky = w) expansion= scrolledtext(f1,wrap=word, font=root.customfont ) expansion.configure(height = 10, width = 50) expansion.grid(row=2, column = 1, columnspan = 2, sticky = w)    # management page # acronyms_add used addition (together text_add) , deletion acronym_edit_label = label(f2, text='enter acronym added, edited or deleted',font=root.customfont ) acronym_edit_label.grid(row = 0, column = 0, sticky = w) acronym_edit =entry(f2,textvariable=edit_acronym, style =".tentry") acronym_edit.grid(row = 0, column = 1,columnspan = 2, sticky = w) acronym_edit.focus_set() # adds expansion added acronym text_add_label = label(f2, text='enter expanded text added or edited',font=root.customfont ) text_add_label.grid(row = 1, column = 0, sticky = w) textadd= entry(f2, textvariable=add_expansion, style =".tentry" , width = 40) textadd.grid(row = 1, column = 1,columnspan = 2, sticky = w)  # output display display = text(f2) display.config(height = 5, width = 80) display.grid(row = 6, column = 0,columnspan = 3, sticky = w)  translate_button = ttk.button(f1,text="search",command=find_acronym,style="search.tbutton" ) root.bind("<return>", lambda event: translate_button.invoke())# links <return> convert function (otherwise called button well)  translate_button.grid(row=3, column = 0, sticky =w)  # add/edit/delete add_button = ttk.button(f2,text="add", command=add_acronym ,style="c.tbutton",state = normal) add_button.grid(row = 7, column = 0, sticky = w)   root.mainloop() 

this further question realting messagebox. askyesno requires double-click generate expected call. dictionary in format {'acronym': 'expanded text',...}

assuming code correct, @ least 1 critical error you're calling mainloop in 2 places. mainloop must called once in gui program.

also, you're calling askyesno twice, once without question. perhaps problem. problem here:

messagebox.askyesno(0.0,'"{0}"{1} \n {2}\n'.format(search_analyte.get(),'  not in database.','add,if appropriate')) if messagebox.askyesno() == true:     open_second() else:     open_first() 

see how you're asking display dialog twice?