Update app.py

app.py

@@ -92,13 +92,42 @@ def fetch_exchange_rate(input_text):
         currency_from_code = convert_name_to_code(currency_from)
         currency_to_code = convert_name_to_code(currency_to)
 
+        f fetch_exchange_rate(input_text):
+    """Fetch and calculate the exchange rate based on input."""
+    try:
+        # Normalize the input to make it uniform
+        normalized_input = input_text.lower().replace(' to ', ' into ').replace(' ', '')
+        
+        # If it contains an amount, it needs to be treated accordingly
+        if 'into' in normalized_input:
+            amount_currency_from, currency_to = normalized_input.split('into')
+            if amount_currency_from.isnumeric():
+                amount = float(amount_currency_from)
+                currency_from = currency_to.strip()
+                currency_to = ""
+            else:
+                amount_parts = amount_currency_from.split(maxsplit=1)
+                if len(amount_parts) != 2:
+                    return "Invalid input format. Please use 'amount currency_from into currency_to'."
+                amount = float(amount_parts[0])
+                currency_from = amount_parts[1]
+                currency_to = currency_to.strip()
+        elif 'from' in normalized_input:
+            return "Please use 'amount currency_from into currency_to'."
+        else:
+            return "Invalid input format. Please use 'amount currency_from into currency_to'."
+
+        currency_from_code = convert_name_to_code(currency_from)
+        currency_to_code = convert_name_to_code(currency_to)
+
         # Fetch exchange rates
         response = requests.get(base_url)
         if response.status_code == 200:
             data = response.json()
             rates = data.get('conversion_rates', {})
 
-             rate_to = rates.get(currency_to_code)
+            rate_from = rates.get(currency_from_code)
+            rate_to = rates.get(currency_to_code)
 
             if rate_from and rate_to:
                 # Calculate the conversion rate for the given amount
@@ -108,6 +137,7 @@ def fetch_exchange_rate(input_text):
                 return f"Currency code '{currency_from_code}' or '{currency_to_code}' not found."
         else:
             return f"Failed to fetch exchange rates: {response.status_code} {response.text}."
+    
     except ValueError:
         return "Invalid input format. Please use 'amount currency_from into currency_to'."
     except Exception as e: