I want to use tkinter for exchange conversion.

I want to do exchange conversion like the image, but it doesn't work well.I don't even know how to insert the image.
Please point it out and make improve it.

import tkinter
import tkinter.messagebox
root=tkinter.Tk()

def convert():


    ifradio_var.get() == 1:# Chinese Yuan
        AusDollar=round (entry_var.get()*0.209234,0)
        tkinter.messagebox.showinfo('Your', str(entry_var), 'Chinese Yuan=', str(AusDollar), 'in Australian Dollars')

    elif currency.upper() == 2:# Euro
        AusDollar=round (entry_var.get()*1.59524,0)
        tkinter.messagebox.showinfo('Your', str(entry_var), 'Euros=', str(AusDollar), 'in Australian Dollars')

    elif currency.upper() == 3:#British Pound
        AusDollar=round (entry_var.get*1.83338,0)
        tkinter.messagebox.showinfo('Your', str(entry_var), 'British Pounds=', str(AusDollar), 'in Australian Dollars')

    elif currency.upper() == 4:#RussianRuble
        AusDollar=round (entry_var.get*0.0214580,0)
        tkinter.messagebox.showinfo('Your', str(entry_var), 'Russian Rubles=', str(AusDollar), 'in Australian Dollars')



main_frame = tkinter.Frame(root).grid()
radio_var=tkinter.IntVar()
radio_var.set(1)
entry_var=tkinter.IntVar()


# create buttons

tkinter.Label(main_frame, text="please select the current to convert").grid(column=1, row=1)

tkinter.Radiobutton(main_frame, text="Chinese Yuan", variable=radio_var,
                    value = 1 ).grid (column = 1, row = 2)
tkinter.Radiobutton(main_frame, text="Euro", variable=radio_var,
                    value=2).grid(column=1, row=3)
tkinter.Radiobutton(main_frame, text="British pound", variable=radio_var,
                    value = 3 ).grid (column = 1, row = 4)
tkinter.Radiobutton(main_frame, text="Russian Rule", variable=radio_var,
                    value = 4 ).grid (column = 1, row=5)
tkinter.Label(main_frame, text="How much money do you want to convert?:") .grid(column=1, row=7)

tkinter.Entry(main_frame, textvariable=entry_var, width=10).grid(column=2, row=7)

tkinter.Button(main_frame,
                                text="Convert", command=convert).grid(column=1, row=8)
quit_button=tkinter.Button(main_frame, text="Quit", command=root.destroy).grid(column=2,row=8)


tkinter.mainloop()

python tkinter

2022-09-30 19:21

1 Answers

In the code in the question section, there is an error specifying the parameters of tkinter.messagebox.showinfo() and it is an error.

I didn't include the process of inserting the image, but I rewritten it as follows.

from tkinter import Tk, Frame, Label, Button, Radiobutton, Entry, messagebox
from tkinter import IntVar, W

conversion_table = {
  1: {'currency': 'Chinese Yuan', 'rate': 0.209234},
  2: {'currency': 'Euro', 'rate': 1.595240},
  3: {'currency': 'British Pounds', 'rate': 1.833380},
  4: {'currency': 'Russian Rule', 'rate': 0.021458},
}

class CurrencyConverter (Tk):
  def__init__(self):
    Tk.__init__(self)
    self.currency=IntVar(value=1)
    self.money=IntVar(value=0)
    self.counter = 1

    # Widgets
    frame = Frame(self).grid()
    US>Label(
      frame, text = 'Please select the current to convert'
    ) .grid (column=1, row=self.row(), columnspan=4, sticky=W, padx=5)

    # Currents
    fork, item in conversion_table.items():
      Radiobutton(
        frame, text=item['currency'], variable=self.currency, value=k
      ) .grid (column=1, row=self.row(1), columnspan=4, sticky=W, padx=20)

    # Entry box
    US>Label(
      frame, text = 'How much money do you want to convert?'
    ) .grid (column=1, row=self.row(1), columnspan=3, sticky=W, padx=5)
    entry=Entry(frame, textvariable=self.money, width=10)
    entry.grid (column=4, row=self.row(), padx=(1,10))
    entry.configure(
      validate='key', vcmd=(entry.register(
        lambdap —True if p.isdigit() or p==' else False), '%P')
    )

    # Buttons for operations
    Button(
      frame, text='Convert', command=self.convert
    ) .grid(column=1, row=self.row(1), columnspan=2,paddy=(10,0))
    Button(
      frame, text='Quit', command=self.destroy
    ) .grid (column=3, row=self.row(), columnspan=2, padx=(10,0), pady=(10,0))

  def convert (self):
    try:
      val=self.money.get()
    except:
      return
    current=conversion_table [self.current.get()]
    aus_dollar=round (val*currency ['rate'], 1)
    messagebox.showinfo(
      'Results',
      f'Your {val} {currency["currency"]} = {aus_dollar} in Australian Dollars'
    )

  default(self, step=0):
    self.counter+=step
    return self.counter

if__name__=='__main__':
  gui=CurrencyConverter()
  gui.mainloop()

2022-09-30 19:21

If you have any answers or tips

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