Конвертер валюты с питоном

Laying out the labels on the tkinter grid.
# Create a Label widget with "USD" as label
    l0 =Label(window,text="USD")
    l0.grid(row=0,column=0) # The Label is placed in 
    position 0, 0 in the window

   l1 = Label(window,text="INR")
   l1.grid(row=1,column=0) # The Label is placed in position 
   1, 0 in the window
   l2 = Label(window,text="GBP")
   l2.grid(row=1,column=1) # The Label is placed in position 
   1, 1 in the window

  ……

  e2 = Entry(window,textvariable=e2_value)  # Create an 
  Entry box for users to enter the value
  e2.grid(row=0,column=1)


  # Create a button widget
  # The from_currency() function is called when the button 
   is pushed
  b1 = Button(window,text="Convert",command=from_currency)
  b1.grid(row=0,column=2)

  # The delete function is called when the button is pushed
   b2 = Button(window,text="Clear",command=delete)
   b2.grid(row=0,column=3)


   # Create four empty text boxes, t1, t2, t3 and t4 for 
   values to show up
  t1 = Text(window,height=1,width=20)
  t1.grid(row=2,column=0)

Fetch Data via URL 
  # Where USD is the base currency you want to use
  url = 'https://v6.exchangerate-api.com/v6/KEY/latest/USD/'

  # Making our request
  response = requests.get(url)
  data = response.json()

 # Your JSON object
 print(data['conversion_rates']['USD'])

def from_currency():
# Get user value from input box and multiply by today's 
conversion rate to  get INR and round it to 2 decimals
    rupees = round(float(e2_value.get()) * 
data['conversion_rates']['INR'],2)

# Get user value from input box and multiply by today's conversion rate to get GBP
    pound = round(float(e2_value.get())*data['conversion_rates']['GBP'],2)

…….

  Empty the Text boxes if they had text from the previous 
 use and fill them again
    t1.delete("1.0", END)  # Deletes the content of the Text 
    box from start to END

    ……

def delete():
   # Deletes content from t1 Text box
  t1.delete("1.0", END)

  # Deletes content from t2 Text box
  t2.delete("1.0", END)