Application to get live USD/INR rate Using Python

In this article, we are going to write a python scripts to get live information of USD/INR rate and bind with it GUI application.

Modules Required:

• bs4: Beautiful Soup is a Python library for pulling data out of HTML and XML files.

Installation:

pip install bs4

• requests: This module allows you to send HTTP/1.1 requests very easily.

Installation:

pip install requests

Step-by-step Approach:

• Extract data from the given URL. Copy the URL, after selecting the desired location.
• Scrape the data with the help of requests and the Beautiful Soup module.
• Convert that data into HTML code.
• Find the required details and filter them.

Implementation:

Step 1: Import all the modules required.

Python3

# Import required modules
import requests
from bs4 import BeautifulSoup

Step 2: Create a URL get function 

Python3

# Function to extract html data
def getdata(url):
    r=requests.get(url)
    return r.text

Step 3: Now pass the URL into the getdata() function and convert that data(currency details) into HTML code.

The URL used here is https://finance.yahoo.com/quote/usdinr=X?ltr=1

Python3

# Extract and convert
htmldata = getdata("https://finance.yahoo.com/quote/usdinr=X?ltr=1")
soup = BeautifulSoup(htmldata, 'html.parser')
result = (soup.find_all("div", class_="D(ib) Va(m) Maw(65%) Ov(h)")

Output:

Step 4: Filter the currency details and quality(increment/decrement) according to the given data.

Python3

mydatastr = ''

# Filter converted data
for table in soup.find_all("div", class_="D(ib) Va(m) Maw(65%) Ov(h)"):
    mydatastr += table.get_text()

# Display output
print(mydatastr)

Output:

'73.2610-0.2790 (-0.38%)As of  3:30PM BST. Market open.'

Below is the complete program implemented using tkinter module.

Python

# Import required modules
from tkinter import *
import requests
from bs4 import BeautifulSoup



# user defined function
# to extract currency details
def getdata(url):
    r = requests.get(url)
    return r.text



# Function to compute and display currency details
def get_info():
    try:
        htmldata = getdata("https://finance.yahoo.com/quote/usdinr=X?ltr=1")
        soup = BeautifulSoup(htmldata, 'html.parser')
        mydatastr = ''
        for table in soup.find_all("div", class_="D(ib) Va(m) Maw(65%) Ov(h)"):
            mydatastr += table.get_text()
        list_data = mydatastr.split()
        temp = list_data[0].split("-")
        rate.set(temp[0])
        inc.set(temp[1])
        per_rate.set(list_data[1])
        time.set(list_data[3])
        result.set("success")
    except:
        result.set("Opps! something wrong")



# Driver Code
# Create tkinter object
master = Tk()

# Set background color
master.configure(bg='light grey')

# Variable Classes in tkinter
result = StringVar()
rate = StringVar()
per_rate = StringVar()
time = StringVar()
inc = StringVar()

# Creating label for each information
Label(master, text="Status :", bg="light grey").grid(row=2, sticky=W)
Label(master, text="Current rate of INR :",
      bg="light grey").grid(row=3, sticky=W)
Label(master, text="Increase/decrease by :",
      bg="light grey").grid(row=4, sticky=W)
Label(master, text="Rate change :", bg="light grey").grid(row=5, sticky=W)
Label(master, text="Rate of time :", bg="light grey").grid(row=6, sticky=W)

# Creating label for class variable
Label(master, text="", textvariable=result,
      bg="light grey").grid(row=2, column=1, sticky=W)
Label(master, text="", textvariable=rate,
      bg="light grey").grid(row=3, column=1, sticky=W)
Label(master, text="", textvariable=inc, bg="light grey").grid(
    row=4, column=1, sticky=W)
Label(master, text="", textvariable=per_rate,
      bg="light grey").grid(row=5, column=1, sticky=W)
Label(master, text="", textvariable=time,
      bg="light grey").grid(row=6, column=1, sticky=W)

# Create submit button
b = Button(master, text="Show", command=get_info, bg="Blue").grid(row=0)

mainloop()

Output: