Changed quotes

src/rp2/in_transaction.py

@@ -145,7 +145,7 @@ def to_string(self, indent: int = 0, repr_format: bool = True, extra_data: Optio
             f"unique_id={self.unique_id}",
             f"is_taxable={stringify(self.is_taxable())}",
             f"fiat_taxable_amount={self.fiat_taxable_amount:.4f}",
-            f"from_lot={self.from_lot.internal_id if self.from_lot is not None else ""}",
+            f"from_lot={self.from_lot.internal_id if self.from_lot is not None else ''}",
             f"to_lots={", ".join(f"{exchange}: {', '.join(t.internal_id for t in transactions)}" for exchange, transactions in self.to_lots.items())}",
         ]
         if extra_data: