title: Python tkinter's entry.get() does not work, how can I fix it?
body: <p>I am building a simple program for university. We have to convert our code to an interface. Ive managed to make the interface, but i cant seem to pass my values from Entry to the actual code. Here is my code:</p>
  
  <pre><code>import sys
  from tkinter import *
  from tkinter import ttk
  import time
  from datetime import datetime
  now= datetime.now()
  
  d = dict()
  def quit():
      print("Have a great day! Goodbye :)")
      sys.exit(0)
  def display():
      print(str(d))
  def add(*args): 
      global stock
      global d
      stock = stock_Entry.get()
      Quantity = Quantity_Entry.get()
      if stock not in d:
          d[stock] = Quantity
      else:
          d[stock] += Quantity
  
  
  
  
  root = Tk()
  root.title("Homework 5 216020088")
  
  mainframe = ttk.Frame(root, padding="6 6 20 20")
  mainframe.grid(column=0, row=0, sticky=(N, W, E, S))
  
  ttk.Label(mainframe, text="you are accesing this on day %s of month %s of %s" % (now.day,now.month,now.year)+" at exactly %s:%s:%s" % (now.hour,now.minute,now.second), foreground="yellow", background="Black").grid(column=0, row = 0)
  
  stock_Entry= ttk.Entry(mainframe, width = 60, textvariable="stock").grid(column=0, row = 1, sticky=W)
  ttk.Label(mainframe, text="Please enter the stock name").grid(column=1, row = 1, sticky=(N, W, E, S))
  
  Quantity_Entry= ttk.Entry(mainframe, width = 60, textvariable="Quantity").grid(column=0, row = 2, sticky=W)
  ttk.Label(mainframe, text="Please enter the quantity").grid(column=1, row = 2, sticky=(N, W, E, S))
  
  ttk.Button(mainframe, text="Add", command=add).grid(column=0, row=3, sticky=W)
  ttk.Button(mainframe, text="Display", command=display).grid(column=0, row=3, sticky=S)
  ttk.Button(mainframe, text="Exit", command=quit).grid(column=0, row=3, sticky=E)
  
  
  for child in mainframe.winfo_children(): child.grid_configure(padx=5, pady=5)
  root.mainloop()
  </code></pre>