Update currency.py

Currency Script/currency.py

@@ -1,37 +1,53 @@
-# Python program to convert the currency
+# Python program to convert the currency 
 # of one country to that of another country
 
-# Import the modules needed
+# Import the required module
 import requests
 
+# Currency converter class
 class Currency_convertor:
-	# empty dict to store the conversion rates
-	rates = {}
-	def __init__(self, url):
-		data = requests.get(url).json()
-
-		# Extracting only the rates from the json data
-		self.rates = data["rates"]
-
-	# function to do a simple cross multiplication between
-	# the amount and the conversion rates
-	def convert(self, from_currency, to_currency, amount):
-		initial_amount = amount
-		if from_currency != 'EUR' :
-			amount = amount / self.rates[from_currency]
-
-		# limiting the precision to 2 decimal places
-		amount = round(amount * self.rates[to_currency], 2)
-		print('{} {} = {} {}'.format(initial_amount, from_currency, amount, to_currency))
-
-# Driver code
+    # Empty dictionary to store the conversion rates
+    rates = {}
+
+    # Constructor to initialize the conversion rates from an API
+    def __init__(self, url):
+        # Fetch the data from the provided URL and store it as a JSON object
+        data = requests.get(url).json()
+
+        # Extract only the 'rates' section from the JSON data
+        self.rates = data["rates"]
+
+    # Function to convert from one currency to another
+    # using simple cross-multiplication based on the rates
+    def convert(self, from_currency, to_currency, amount):
+        initial_amount = amount  # Store the initial amount before conversion
+
+        # If the base currency is not EUR, first convert the amount to EUR
+        if from_currency != 'EUR':
+            amount = amount / self.rates[from_currency]
+
+        # Convert the amount to the target currency and round it to 2 decimal places
+        amount = round(amount * self.rates[to_currency], 2)
+
+        # Display the result in a readable format
+        print('{} {} = {} {}'.format(initial_amount, from_currency, amount, to_currency))
+
+# Driver code to test the functionality
 if __name__ == "__main__":
-
-	# YOUR_ACCESS_KEY = 'GET YOUR ACCESS KEY FROM fixer.io'
-	url = str.__add__('http://data.fixer.io/api/latest?access_key=', YOUR_ACCESS_KEY)
-	c = Currency_convertor(url)
-	from_country = input("From Country: ")
-	to_country = input("TO Country: ")
-	amount = int(input("Amount: "))
-
-	c.convert(from_country, to_country, amount)
+
+    # Replace 'YOUR_ACCESS_KEY' with your actual access key from fixer.io
+    YOUR_ACCESS_KEY = 'GET_YOUR_ACCESS_KEY_FROM_fixer.io'
+
+    # Construct the API URL with the access key
+    url = str.__add__('http://data.fixer.io/api/latest?access_key=', YOUR_ACCESS_KEY)
+
+    # Create an instance of the Currency_convertor class
+    c = Currency_convertor(url)
+
+    # Take inputs from the user: source country, target country, and amount to convert
+    from_country = input("From Country (currency code): ")
+    to_country = input("To Country (currency code): ")
+    amount = int(input("Amount: "))
+
+    # Call the convert function to get the conversion result
+    c.convert(from_country, to_country, amount)