Coin Value Display Widget

In this post, I will explain how I created a simple widget that displays the values of the coins we want. I coded this widget in Python. The purpose of the program is to continuously track the values of our selected coins in a small section of the screen. If you would like to download my program, you need to download the zip file below and extract it to another folder.

CoinPrice_Widget.zip

Download ZIP • 12.38MB

You can access the code in the GitHub folder from the following link.

https://github.com/esprator07/coinPriceWidget

Before we start coding, let's add the necessary libraries to our project. In this code, I used:

import requests import json from tkinter import *

I used three libraries. If these libraries are not installed, you need to install them via the terminal.

Next, we input the data we will use in our code.

payload = {} # To fetch data from the Binance website

headers = {} # To fetch data from the Binance website colour1='#EEEEEE' #The background color of our application fon1=('Arial 12 bold') #The font of our application. coinLabel=["0.0","0.0","0.0","0.0","0.0","0.0","0.0","0.0","0.0","0.0", "0.0","0.0","0.0","0.0","0.0","0.0","0.0","0.0","0.0","0.0"] #We will link the tkinter labels to this. coins=[] #The coins entered by the user will be saved here.

coinName = ["BTCUSDT", "ETHUSDT", "SXPUSDT", "SPELLUSDT", "XRPUSDT", "ZILUSDT", "GMTUSDT", "COTIUSDT", "RLCUSDT", "RVNUSDT", "OPUSDT", "DYDXUSDT", "APEUSDT", "MTLUSDT", "USDTTRY"] #The coins entered by the user will be saved here. #If the user does not enter any coin, the 15 coins here will be displayed automatically. url = "https://api.binance.com/api/v3/ticker/price?&symbols=[" #The URL that allows us to fetch data from Binance. #We will add coin names to this URL. i = 0 coinoldprice=[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0] #When there is a price change on the screen, it will be green and red.

When the program starts, we create the URLs for the 15 coins we have selected. If the user doesn't enter a coin name, the 15 coins we selected will be displayed.

while len(coinName) - i: url = url + "%22" + coinName[i] + "%22" i = i + 1 if i != len(coinName): url = url + "," elif i == len(coinName): url = url + "]" #At the start of the program, we create the URLs for the 15 coins we have selected.

We fetch the coin values from the URL every 5 seconds.

def data(): global coinName, result global coinLabel coinValue = requests.get(url, headers=headers, data=payload) result = json.loads(coinValue.content) #I saved the information coming from the URL to the result. coin_show() window.after(5000, data) #The data function will be executed every 5 seconds.

We are entering the code to display the coin values on the screen.

def coin_show () : global coinName,coinLabel ,result i=0 while len(coinName)-i: ind=next((index for (index, d) in enumerate(result) if d["symbol"] == coinName[i]), None) #Since the coins do not come in the order we entered from the URL, we determine the index at which the coin is located. coinLabel[i]['text']=(float(result[ind]["price"])) #We are printing the coin's price on the screen. if (float(result[ind]["price"])) > coinoldprice[i]: coinLabel[i]['fg']='green' elif (float(result[ind]["price"])) < coinoldprice[i]: coinLabel[i]['fg'] = 'red' else: coinLabel[i]['fg']='#000000' coinoldprice[i]=(float(result[ind]["price"])) #We are changing the color of the coin's price. i=i+1 window.update() #We are updating the application.

We create the tkinter window:

We initialize the window, set its title to "COIN PRICES", make it always stay on top of other windows, and set its background color.

window=Tk () window.title('COIN PRICES') window.attributes('-topmost', 'true') window.configure(bg=colour1)

We write a function to clear the screen when transitioning from the opening screen to the price screen:

def remove_widgets(): for widget in window.winfo_children(): widget.destroy() We define a function that removes all widgets from the window to clear the screen before displaying the next page.

Designing the page where coins will be displayed:

def page2(): global coinName,url,i,coins if coins.get(): coinss = coins.get() coinName = coinss.split(",") url = "https://api.binance.com/api/v3/ticker/price?&symbols=[" i = 0 while len(coinName) - i: url = url + "%22" + coinName[i] + "%22" i = i + 1 if i != len(coinName): url = url + "," elif i == len(coinName): url = url + "]" # We separated the coins entered by the user with commas and then created a new URL with these coins. remove_widgets() frame1 = Frame(window, bg=colour1) frame1.grid(row=0, column=0) frame2 = Frame(window, bg=colour1) frame2.grid(row=0, column=1) frame3 = Frame(window, bg=colour1) frame3.grid(row=0, column=2) # We used 3 frames for tkinter. c = 0

counter = len(coinName) while counter: Label(frame1, text=coinName[c], font=fon1, bg=colour1, padx=8, pady=8).pack() Label(frame2, text=':', font=fon1, bg=colour1, padx=8, pady=8).pack() coinLabel[c] = Label(frame3, font=fon1, bg=colour1) coinLabel[c].pack(padx=8, pady=6.5) c = c + 1 counter = counter - 1 data() # We displayed the names of the coins on the screen.

We are designing the opening screen.

def page1(): global coins remove_widgets() frame1 = Frame(window, bg=colour1) frame1.grid(row=0, column=0) frame2 = Frame(window, bg=colour1) frame2.grid(row=2, column=0) frame3 = Frame(window, bg=colour1) frame3.grid(row=3, column=0) # We used 3 frames for tkinter. Label(frame1, text='Enter coins name (ex: BTCUSDT,ETHUSDT,XRPUSDT,USDTTRY) :', font=fon1, bg=colour1, padx=8, pady=8, justify='center').pack() coins = Entry(frame2, width=60, font=fon1, bg=colour1, justify='center') coins.pack(padx=60, pady=5) butonnn=Button(frame3,text="START PROGRAM",command=page2) butonnn.pack()

# We configured the coin names to be entered by the user and the start button.

Finally, we run the opening screen function and the function to keep the window always on the screen.

page1() #We ran the opening screen function named page1. window.mainloop() # We entered the function to keep the window open continuously.

Our code is ready. Now, go to the terminal and type:

pyinstaller --onedir "the name of the file where the code is written".py Replace "the name of the file where the code is written" with the actual name of the file. Press Enter. After the terminal process is completed, the .exe file will be in the "dist" folder inside the directory where the code was written. Just go to that folder and run the .exe file.