Flash card GUI App using Python Tkinter and pandas library

main.py

from tkinter import *
import pandas
import random

BACKGROUND_COLOR = "#B1DDC6"
current_card = {}
to_learn = {}

# ---------------------------- Step 2 - Create New Flash Cards ------------------------------- #
try:
    data = pandas.read_csv("data/words_to_learn.csv")
except FileNotFoundError:
    original_data = pandas.read_csv("data/french_words.csv")
    to_learn = original_data.to_dict(orient="records")
else:
    to_learn = data.to_dict(orient="records")


def next_card():
    global current_card, flip_timer
    window.after_cancel(flip_timer)
    current_card = random.choice(to_learn)
    canvas.itemconfig(card_title, text="French", fill="black")
    canvas.itemconfig(card_word, text=current_card["French"], fill="black")
    canvas.itemconfig(card_background, image=front_image)
    flip_timer = window.after(3000, func=flip_card)  # 3000 milliseconds equal to 3 seconds


# ---------------------------- Step 3 - Flip the Flash Cards ------------------------------- #

def flip_card():
    global current_card
    canvas.itemconfig(card_title, text="English", fill="white")
    canvas.itemconfig(card_word, text=current_card["English"], fill="white")
    canvas.itemconfig(card_background, image=back_image)


# ---------------------------- Step 4 - Saving the data in Csv file ------------------------------- #

def is_known():
    to_learn.remove(current_card)
    data = pandas.DataFrame(to_learn)
    # To avoid multiple column numbers to be shown in csvfile, keep index as False below,
    data.to_csv("data/words_to_learn.csv", index=False)
    next_card()


# ---------------------------- Step 1 - Create the User Interface (UI) with Tkinter ------------------------------- #


window = Tk()

window.title("Welcome to Flash cards")
window.config(padx=50, pady=50, bg=BACKGROUND_COLOR)

flip_timer = window.after(3000, func=flip_card)  # 3000 milliseconds equal to 3 seconds

window_label = Label(text="French", font=("Arial", 16, "bold"), bg="white", fg="black")
window_label.grid(row=2, column=1)

canvas = Canvas(height=526, width=800)

front_image = PhotoImage(file="card_front.png")
back_image = PhotoImage(file="card_back.png")

card_background = canvas.create_image(400, 260, image=front_image)
card_title = canvas.create_text(400, 150, text="", font=("Arial", 40, "italic"))
card_word = canvas.create_text(400, 263, text="", font=("Arial", 60, "bold"))

canvas.config(bg=BACKGROUND_COLOR, highlightthickness=0)
canvas.grid(column=0, row=0, columnspan=2)

right_image = PhotoImage(file="right.png")

right_button = Button(image=right_image, bg="white", highlightthickness=0, command=is_known)
right_button.grid(row=1, column=1)

wrong_image = PhotoImage(file="wrong.png")

wrong_button = Button(image=wrong_image, highlightthickness=0, command=next_card)
wrong_button.grid(row=1, column=0)

# flipping the card
english_back_image = PhotoImage(file="card_back.png")

next_card()

window.mainloop()