text: from tkinter import * 
  class App(Frame): 
      def __init__(self, master): 
          super().__init__(master) 
          self.pack(padx=20, pady=20) 
          self.create_widgets() 
           
      def create_widgets(self): 
          Label(self, text="Name").grid(row=0, column=0, sticky=E) 
          self.name = Entry(self, width=10) 
          self.name.grid(row=0, column=1)         
          Label(self, text="Email").grid(row=1, column=0, sticky=E) 
          self.email = Entry(self, width=10) 
          self.email.grid(row=1, column=1) 
          Label(self, text="@smash.ac.kr").grid(row=1, column=2, sticky=W)         
          self.sex = StringVar() 
          self.sex.set(None) 
          Label(self, text="Sex").grid(row=2, column=0, sticky=E) 
          Radiobutton(self, text='male', variable=self.sex, value='male').grid(row=2, column=1) 
          Radiobutton(self, text='female', variable=self.sex, value='female').grid(row=2, column=2, sticky=W)        
          Label(self, text="Favorites").grid(row=3, column=1) 
          self.lagers = BooleanVar()     
          Checkbutton(self, text="Lager", variable=self.lagers).grid(row=4, column=0) 
          self.wheetbeer = BooleanVar()             
          Checkbutton(self, text="Wheet Beer", variable=self.wheetbeer).grid(row=4, column=1) 
          self.pilsners = BooleanVar() 
          Checkbutton(self, text="Pilsner", variable=self.pilsners).grid(row=4, column=2) 
          self.paleales = BooleanVar() 
          Checkbutton(self, text="Pale Ale", variable=self.paleales).grid(row=5, column=0) 
          self.indiapaleales = BooleanVar() 
          Checkbutton(self, text="India Pale Ale", variable=self.indiapaleales).grid(row=5, column=1) 
          self.stouts = BooleanVar() 
          Checkbutton(self, text="Stout", variable=self.stouts).grid(row=5, column=2)
          Button(self, text="Register", command=self.write_summary).grid(row=6, column=0, columnspan=3, sticky=S)         
          self.summary = Text(self, width=48, height=10, wrap=WORD) 
          self.summary.grid(row=7, column=0, columnspan=3, sticky=S) 
          Button(self, text="Quit", command=self.quit).grid(row=8, column=0, columnspan=3) 
           
      def write_summary(self): 
          summary = "Name: " + self.name.get() + "\n" 
          summary += "Email: " + self.email.get() + "@smash.ac.kr\n" 
          summary += "Sex: " + self.sex.get() + "\n" 
          summary += "Favorites are: " 
          if self.lager.get(): 
              summary += "Lager, " 
          if self.wheetbeer.get(): 
              summary += "Wheet Beer, " 
          if self.pilsner.get():  
              summary += "Pilsner, " 
          if self.paleale.get(): 
              summary += "Pale Ale, " 
          if self.indiapaleale.get(): 
              summary += "India Pale Ale, " 
          if self.stout.get(): 
              summary += "Stout, " 
          summary += "..." 
          self.summary.delete(0.0, END) 
          self.summary.insert(0.0, summary) 
           
  # main         
  root = Tk() 
  root.title("SMaSH Beer Club") 
  root.geometry("400x420") 
  App(root) 
  root.mainloop()