How to Create a Currency Conversion Code in Python?

The Currency Conversion Code in Python develops an exciting Python Program project through which you can convert currency exchange rates.

This article contains the Python Currency Converter Script (currency-converter-project.py).

Currency Converter In Python: Project Information

A Python Currency Converter is an app intermediate level python project which will boost your confidence. For a user interface, we can use Currency Converter Python Tkinter API.

We have provided a downloadable Python Currency Converter Code for free.

To start creating this project Currency Conversion rates In Python, make sure that you have PyCharm IDE installed on your computer.

How to create a Currency Conversion Code in Python? With Source Code

The Code Given Below Is For Importing Modules.

import requests
from tkinter import *
import tkinter as tk
from tkinter import ttk

In this code which is importing all the modules.

The Code Given Below Is For The Real-time Currency Converter Class

class RealTimeCurrencyConverter():
    def __init__(self,url):
            self.data = requests.get(url).json()
            self.currencies = self.data['rates']

    def convert(self, from_currency, to_currency, amount): 
        initial_amount = amount 
        if from_currency != 'USD' : 
            amount = amount / self.currencies[from_currency] 
  
        # limiting the precision to 4 decimal places 
        amount = round(amount * self.currencies[to_currency], 4) 
        return amount

This module is the module for the real-time currency converter class.

The Code Given Below Is For Performing The Currency Conversion

 def perform(self):
        amount = float(self.amount_field.get())
        from_curr = self.from_currency_variable.get()
        to_curr = self.to_currency_variable.get()

        converted_amount = self.currency_converter.convert(from_curr,to_curr,amount)
        converted_amount = round(converted_amount, 2)

        self.converted_amount_field_label.config(text = str(converted_amount))
    
    def restrictNumberOnly(self, action, string):
        regex = re.compile(r"[0-9,]*?(\.)?[0-9,]*$")
        result = regex.match(string)
        return (string == "" or (string.count('.') <= 1 and result is not None))

This module which is performing the currency conversion that you’ve selected.

Complete Source Code of Currency Conversion code in Python:

# # Python Project on Currency Converter

import requests
from tkinter import *
import tkinter as tk
from tkinter import ttk


class RealTimeCurrencyConverter():
    def __init__(self,url):
            self.data = requests.get(url).json()
            self.currencies = self.data['rates']

    def convert(self, from_currency, to_currency, amount): 
        initial_amount = amount 
        if from_currency != 'USD' : 
            amount = amount / self.currencies[from_currency] 
  
        # limiting the precision to 4 decimal places 
        amount = round(amount * self.currencies[to_currency], 4) 
        return amount

class App(tk.Tk):

    def __init__(self, converter):
        tk.Tk.__init__(self)
        self.title = 'Currency Converter'
        self.currency_converter = converter

        #self.configure(background = 'blue')
        self.geometry("530x200")
        
        # Label
        self.intro_label = Label(self, text = 'IT SOURCECODE Real Time Currency Converter',  fg = 'black',bg='blue', relief = tk.RAISED, borderwidth = 3)
        self.intro_label.config(font = ('Courier',15,'bold'))

        self.date_label = Label(self, text = f" Date : {self.currency_converter.data['date']}", relief = tk.GROOVE, borderwidth = 5)

        self.intro_label.place(x = 10 , y = 5)
        self.date_label.place(x = 200, y= 50)

        # Entry box
        valid = (self.register(self.restrictNumberOnly), '%d', '%P')
        self.amount_field = Entry(self,bd = 3, relief = tk.RIDGE, justify = tk.CENTER,validate='key', validatecommand=valid)
        self.converted_amount_field_label = Label(self, text = '', fg = 'black', bg = 'white', relief = tk.RIDGE, justify = tk.CENTER, width = 17, borderwidth = 3)

        # dropdown
        self.from_currency_variable = StringVar(self)
        self.from_currency_variable.set("INR") # default value
        self.to_currency_variable = StringVar(self)
        self.to_currency_variable.set("USD") # default value

        font = ("Courier", 12, "bold")
        self.option_add('*TCombobox*Listbox.font', font)
        self.from_currency_dropdown = ttk.Combobox(self, textvariable=self.from_currency_variable,values=list(self.currency_converter.currencies.keys()), font = font, state = 'readonly', width = 12, justify = tk.CENTER)
        self.to_currency_dropdown = ttk.Combobox(self, textvariable=self.to_currency_variable,values=list(self.currency_converter.currencies.keys()), font = font, state = 'readonly', width = 12, justify = tk.CENTER)

        # placing
        self.from_currency_dropdown.place(x = 30, y= 120)
        self.amount_field.place(x = 36, y = 150)
        self.to_currency_dropdown.place(x = 340, y= 120)
        #self.converted_amount_field.place(x = 346, y = 150)
        self.converted_amount_field_label.place(x = 346, y = 150)
        
        # Convert button
        self.convert_button = Button(self, text = "Convert", fg = "black", bg = "green", command = self.perform)
        self.convert_button.config(font=('Courier', 10, 'bold'))
        self.convert_button.place(x = 225, y = 135)

    def perform(self):
        amount = float(self.amount_field.get())
        from_curr = self.from_currency_variable.get()
        to_curr = self.to_currency_variable.get()

        converted_amount = self.currency_converter.convert(from_curr,to_curr,amount)
        converted_amount = round(converted_amount, 2)

        self.converted_amount_field_label.config(text = str(converted_amount))
    
    def restrictNumberOnly(self, action, string):
        regex = re.compile(r"[0-9,]*?(\.)?[0-9,]*$")
        result = regex.match(string)
        return (string == "" or (string.count('.') <= 1 and result is not None))

if __name__ == '__main__':
    url = 'https://api.exchangerate-api.com/v4/latest/USD'
    converter = RealTimeCurrencyConverter(url)

    App(converter)
    mainloop()

Output:

Downloadable Source Code

I have here the list of Best Python Project with Source code free to download for free, I hope this can help you a lot.

Summary

In this article, we labored at the Python undertaking to construct a Currency Converter.

I hope you discovered new matters and loved constructing this thrilling Python undertaking. Share the item on social media together along with your pals and colleagues.

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Inquiries

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