[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci
TheAlgorithms · nickzerjeski · Apr 13, 2026 · Apr 13, 2026 · Apr 13, 2026 · Apr 13, 2026
commit 9611435dcf9cdbbadc2c0c8a11a1e246a6f1d04e
diff --git a/other/grocery_store_cart.py b/other/grocery_store_cart.py
@@ -25,7 +25,7 @@

    def add_item(self, item: str, quantity: int = 1) -> None:
        if item not in self.price_catalog:
            raise KeyError(f"{item!r} is not in the catalog")
        if quantity <= 0:
            raise ValueError("quantity must be positive")
        self.quantities[item] = self.quantities.get(item, 0) + quantity
@@ -35,15 +35,16 @@
            raise ValueError("quantity must be positive")
         current = self.quantities.get(item, 0)
         if current == 0:
             raise KeyError(f"{item!r} is not present in the cart")
-        remaining = current - quantity
-        if remaining > 0:
+        if (remaining := current - quantity) > 0:
             self.quantities[item] = remaining
         else:
             self.quantities.pop(item, None)
 
     def total_price(self) -> float:
-        return sum(self.price_catalog[item] * qty for item, qty in self.quantities.items())
+        return sum(
+            self.price_catalog[item] * qty for item, qty in self.quantities.items()
+        )
 
 
 if __name__ == "__main__":