updates

Author: Sean-Bradley

facade/game_api.py

@@ -34,6 +34,7 @@ def submit_entry(user_id: str, entry: Decimal) -> bool:
         return GameEngine().submit_entry(user_id, entry)
 
     @staticmethod
-    def register_user(value: dict[str, str]) -> str:
+    def register_user(value: dict[str, str]) -> str:  # Python 3.9
+        # def register_user(value) -> str:  # Python 3.8 and earlier
         "register a new user and returns the new id"
         return Users.register_user(value)

facade/game_engine.py

@@ -10,7 +10,8 @@ class GameEngine():
     _instance = None
     _start_time: int = 0
     _clock: int = 0
-    _entries: list[tuple[str, Decimal]] = []
+    _entries: list[tuple[str, Decimal]] = []  # Python 3.9
+    # _entries = []  # Python 3.8 or earlier
     _game_open = True
 
     def __new__(cls):

facade/reports.py

@@ -4,7 +4,8 @@
 
 class Reports():
     "A Singleton Dictionary of Reported Events"
-    _reports: dict[int, tuple[float, str]] = {}
+    _reports: dict[int, tuple[float, str]] = {}  # Python 3.9
+    # _reports = {}  # Python 3.8 or earlier
     _row_id = 0
 
     def __new__(cls):

facade/users.py

@@ -6,13 +6,15 @@
 
 class Users():
     "A Singleton Dictionary of Users"
-    _users: dict[str, dict[str, str]] = {}
+    _users: dict[str, dict[str, str]] = {}  # Python 3.9
+    # _users = {}  # Python 3.8 or earlier
 
     def __new__(cls):
         return cls
 
     @classmethod
-    def register_user(cls, new_user: dict[str, str]) -> str:
+    def register_user(cls, new_user: dict[str, str]) -> str:  # Python 3.9
+        # def register_user(cls, new_user) -> str:  # Python 3.8 or earlier
         "register a user"
         if not new_user["user_name"] in cls._users:
             # generate really complicated unique user_id.

facade/wallets.py

@@ -5,7 +5,8 @@
 
 class Wallets():
     "A Singleton Dictionary of User Wallets"
-    _wallets: dict[str, Decimal] = {}
+    _wallets: dict[str, Decimal] = {}  # Python 3.9
+    # _wallets = {}  # Python 3.8 or earlier
 
     def __new__(cls):
         return cls

interpreter/interpreter_concept.py

@@ -65,7 +65,8 @@ def __repr__(self):
 print(TOKENS)
 
 # Manually Creating an Abstract Syntax Tree from the tokens
-AST: list[AbstractExpression] = []  # A list of AbstractExpressions
+AST: list[AbstractExpression] = []  # Python 3.9
+# AST = []  # Python 3.8 or earlier
 AST.append(Add(Number(TOKENS[0]), Number(TOKENS[2])))  # 5 + 4
 AST.append(Subtract(AST[0], Number(TOKENS[4])))        # ^ - 3
 AST.append(Add(AST[1], Number(TOKENS[6])))             # ^ + 7