python 3.x - tkinter sequential execution ordering -

-

i having trouble code won't execute code @ point. can't describe problem in wording, in code, remaining code under window.mainloop() not run need unless main window (gui) closed problematic. want able print(t.test) when code under def calculate has been executed. technically removing window.mainloop() run code before can gather input vital. need keep structure of coding same shown below well.

import tkinter  class test:    def __init__(self):     self.test = false  def calculate(window, userinput, t):   test = userinput.get()   print(test)   window.destroy()   t.test = true  def main():    t = test()   gui = tkinter.tk()   gui.title("example window")   gui.geometry("400x400")    userinput = tkinter.stringvar()    window = tkinter.toplevel()   window.title("entry")   tkinter.message(window, text="label", width="200").pack()   tkinter.entry(window, width=30, textvariable=userinput).pack()   tkinter.button(window, text="ok", command=lambda: calculate(window, userinput, t)).pack()   window.mainloop()    print(t.test)    gui.mainloop()  main()

edit: seems able make behave same way , keep same structure putting print(t.test) under own defined function , calling under def calculate(userinput, window, t) in last line. tested causes main window freeze.

the way tkinter designed work you:

  1. create widgets
  2. call mainloop (exactly once)
  3. the window destroyed , program exits

you shouldn't call mainloop more once, , shouldn't have more code after call mainloop.

if want run after call mainloop, schedule after:

... gui.after(1, do_something) gui.mainloop()

anything scheduled after run after mainloop has started.


Comments

Post a Comment

Popular posts from this blog

java - Run a .jar on Heroku -

-
i trying run .jar file on heroku, , can't find instructions anywhere on how this. have read wants me compile uploading heroku. possible, , if is, how this? if helps, trying run minecraft craftbukkit server, , don't have pom.xml file yet. you didn't provide details i'll try give , people reaches question way it. first of all, create heroku account , create heroku application (assumed have done that). second, need generate application jar , upload heroku. so, open terminal , install heroku cli (assuming unix terminal): $ sudo npm install -g heroku-cli you need have npm , nodejs installed, can check link: https://www.digitalocean.com/community/tutorials/how-to-install-node-js-on-ubuntu-16-04 once done that, can use npm update node version acceptable heroku-cli: $ sudo npm install -g n $ sudo n 7.10.0 and run: $ sudo npm install -g heroku-cli in order deploy jars, need install deploy plugin: $ sudo heroku plugins:install heroku-cli-deploy ...
Read more

java - Jtable duplicate Rows -

-
Image
when add new rows in jtable duplicate rows many times this method update jtable public final void tableaucomande(){ ((defaulttablemodel)tabcommande.getmodel()).getdatavector().clear(); session s=hibernateutil.getsessionfactory().opensession(); criteria cr1= s.createcriteria(commande.class); list <commande> lcs=cr1.list() ; criteria cr2= s.createcriteria(lignecommande.class); list <lignecommande> lck=cr2.list() ; if(lcs.size()!=0 && lck.size()!=0) { (commande lc:lcs) { for(lignecommande lig:lck){ ((defaulttablemodel)tabcommande.getmodel()).addrow(new object[]{ lc.getid_cmd(),lc.getnumcmd(),lc.getdate_cmd(),lc.getclient().getnomprenom(), lig.getproduit().getlib_prd(),lig.getquantite(),lig.getproduit().getid_prd() }); } } // tabcommande.setrowselectioninterval(tabcommande.getrowcount()-1,tabcommande.getrowcount()-1); } } this code add add data rows displaye...
Read more

validation - How to pass paramaters like unix into windows batch file -

-
i need pass various parameters .cmd file unix format file.cmd -configuration=value -source=value -flag but, try this: startlocal @echo off cls setlocal set cmdline=%* set configuration= set source= set badargs= set validation= goto main :splitargs echo splitargs(%*) if "%*" neq "" ( /f "tokens=1,2,* delims== " %%i in ("%*") call :assignkeyvalue %%i %%j & call :splitargs %%k ) goto :eof :assignkeyvalue echo assignkeyvalue(%1, %2) if /i %1==-configuration ( set configuration=%2 ) else if /i %1==-source ( set source=%2 ) else ( rem append unrecognised [key,value] badargs echo unknown key %1 set badargs=%badargs%[%1, %2] ) goto :eof :validate echo validating set validation=fail if defined configuration ( echo -configuration ok if defined source ( echo -source ok if not defined badargs ( set validation=success ) ) ) goto :eof :main cl...
Read more