Reverting change to currency exchange since this is a different exercise.

Author: BethanyG

exercises/concept/currency-exchange/exchange.py

@@ -8,152 +8,68 @@
 
 
 def exchange_money(budget, exchange_rate):
-    """Calculate estimated value after exchange.
-
-    Parameters:
-        budget (float): Tthe amount of money you are planning to exchange.
-        exchange_rate (float): The unit value of the foreign currency.
-
-    Returns:
-        float: The exchanged value of the foreign currency you can receive.
-
-    Examples:
-        >>> exchange_money(127.5, 1.2)
-        106.25
-
-        >>> exchange_money(200, 1.10)
-        181.82
-
-    This function calculates and returns the (estimated) value of the exchanged currency.
+    """
 
+    :param budget: float - amount of money you are planning to exchange.
+    :param exchange_rate: float - unit value of the foreign currency.
+    :return: float - exchanged value of the foreign currency you can receive.
     """
 
     pass
 
 
 def get_change(budget, exchanging_value):
-    """Calculate currency left after an exchange.
-
-    Parameters:
-        budget (float): The amount of money you own.
-        exchanging_value (float): The amount of your money you want to exchange now.
-
-    Returns:
-        float: The amount left of your starting currency after the exchange
-
-    Examples:
-        .>>> get_change(127.5, 120.0)
-        7.5
-
-        >>> get_change(300.75, 150.25)
-        150.50
-
-    Tthis function calcultes and returns the amount of money left over from the budget
-    after an exchange.
+    """
 
+    :param budget: float - amount of money you own.
+    :param exchanging_value: float - amount of your money you want to exchange now.
+    :return: float - amount left of your starting currency after exchanging.
     """
 
     pass
 
 
 def get_value_of_bills(denomination, number_of_bills):
-    """Calculate the total value of currency at current denomination.
-
-    Parameters:
-        denomination (int): The value of a single unit (bill).
-        number_of_bills (int): The total number of units (bills).
-
-    Returns:
-        int: Calculated value of the units (bills).
-
-    Examples:
-        >>> get_value_of_bills(5, 128)
-        640
-
-        >>> get_value_of_bills(15.13, 16)
-        242
-
-    This function calculates and returns the total value of the bills (excluding fractionaal amounts).
+    """
 
+    :param denomination: int - the value of a bill.
+    :param number_of_bills: int - total number of bills.
+    :return: int - calculated value of the bills.
     """
 
     pass
 
 
 def get_number_of_bills(amount, denomination):
-    """Calculate the number of currency units (bills) within the amount.
-
-    Parameters:
-        amount (float): The total starting value.
-        denomination (int): The value of a single unit (bill).
-
-    Returns:
-        int: The number of units (bills) that can be obtained from the amount.
-
-    Examples:
-        >>> get_number_of_bills(127.5, 5)
-        25
-
-        >>> get_number_of_bills(35.16, 10)
-        3
-
-    This function calcluates and returns the number pf currency units (bills) that can
-    be obtained from the given amount. Whole bills only - no fractioal amounts.
+    """
 
+    :param amount: float - the total starting value.
+    :param denomination: int - the value of a single bill.
+    :return: int - number of bills that can be obtained from the amount.
     """
 
     pass
 
 
 def get_leftover_of_bills(amount, denomination):
-    """Calculate leftover amount after exchanging into bills.
-
-    Parameters:
-        amount (float): The total starting value.
-        denomination (int): The value of a single unit (bill).
-
-    Returns:
-        float: The amount that is "leftover", given the current denomination.
-
-    Examples:
-        >>> get_leftover_of_bills(127.5, 20)
-        7.5
-
-        >>> get_leftover_of_bills(153.2, 10)
-        3.20
-
-    This function calculates and returns the leftover amount that cannot be
-    returned from starting amount, due to the currency denomination.
+    """
 
+    :param amount: float - the total starting value.
+    :param denomination: int - the value of a single bill.
+    :return: float - the amount that is "leftover", given the current denomination.
     """
 
     pass
 
 
 def exchangeable_value(budget, exchange_rate, spread, denomination):
-    """Calculate the maximum value of the new currency.
-
-    Parameters:
-        budget (float): The amount of your money you are planning to exchange.
-        exchange_rate (float): The unit value of the foreign currency.
-        spread (int): The percentage that is taken as an exchange fee.
-        denomination (int) The value of a single unit (bill).
-
-    Returns:
-        int: The maximum value you can get in the new currency.
-
-    Examples:
-        >>> exchangeable_value(127.25, 1.20, 10, 20)
-        80
-
-        >>> exchangeable_value(127.25, 1.20, 10, 5)
-        95
-
-    Note:
-        The currency denomination is a whole number and cannot be sub-divided.
+    """
 
-    This function calculates and returns the maximum value of the new currency after
-    determining the exchange rate plus the spread.
+    :param budget: float - the amount of your money you are planning to exchange.
+    :param exchange_rate: float - the unit value of the foreign currency.
+    :param spread: int - percentage that is taken as an exchange fee.
+    :param denomination: int - the value of a single bill.
+    :return: int - maximum value you can get.
     """
 
     pass