Fix code by Ruff

Author: lytic11-web

brain_games/games/calc.py

@@ -1,22 +1,18 @@
-import secrets
 import operator
+import secrets
 
 
 def calculate(num1: int, num2: int, operation: str) -> int:
     """Calculate the result of two numbers with given operation."""
-    operations = {
-        '+': operator.add,
-        '-': operator.sub,
-        '*': operator.mul
-    }
+    operations = {"+": operator.add, "-": operator.sub, "*": operator.mul}
     return operations[operation](num1, num2)
 
 
 def generate_round() -> tuple[str, str]:
     """Generate a round for the calculator game."""
     num1 = secrets.randbelow(50) + 1  # 1-50
     num2 = secrets.randbelow(50) + 1  # 1-50
-    operation = secrets.choice(['+', '-', '*'])
+    operation = secrets.choice(["+", "-", "*"])
 
     question = f"{num1} {operation} {num2}"
     correct_answer = str(calculate(num1, num2, operation))

brain_games/scripts/brain_calc.py

@@ -2,12 +2,12 @@
 from brain_games.engine import run_game
 from brain_games.games.calc import generate_round
 
-DESCRIPTION = 'What is the result of the expression?'
+DESCRIPTION = "What is the result of the expression?"
 
 
 def main():
     run_game(DESCRIPTION, generate_round)
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     main()