Make trade class immutable

1 files changed, 15 insertions, 3 deletions

diff --git a/trade.py b/trade.py
index bddc65f..4eddb7f 100644
--- a/trade.py
+++ b/trade.py
@@ -1,8 +1,20 @@
 class Trade:
     def __init__(self, amount: float, total_cost: float, date: str) -> None:
-        self.amount: float = amount
-        self.total_cost: float = total_cost
-        self.date: str = date
+        self.__amount: float = amount
+        self.__total_cost: float = total_cost
+        self.__date: str = date
+
+    @property
+    def amount(self) -> float:
+        return self.__amount
+
+    @property
+    def total_cost(self) -> float:
+        return self.__total_cost
+
+    @property
+    def date(self) -> str:
+        return self.__date
 
     @property
     def price_per_coin(self) -> float: