more pylint fixes

Author: harisang

src/apis/web3api.py

@@ -111,7 +111,7 @@ def get_transaction(self, tx_hash: str) -> Optional[TxData]:
         """
         try:
             transaction = self.web_3.eth.get_transaction(HexStr(tx_hash))
-        except Exception as err:
+        except Exception as err:  # pylint: disable=W0718
             self.logger.warning(f"Error while fetching transaction: {err}")
             transaction = None
         return transaction

src/monitoring_tests/cost_coverage_zero_signed_fee.py

@@ -35,7 +35,6 @@ def cost_coverage(self, competition_data: dict[str, Any], gas_cost: float) -> bo
         """
 
         solution = competition_data["solutions"][-1]
-        tx_hash = competition_data["transactionHash"]
         ucp = solution["clearingPrices"]
         orders = solution["orders"]
         native_prices = competition_data["auction"]["prices"]
@@ -68,8 +67,9 @@ def cost_coverage(self, competition_data: dict[str, Any], gas_cost: float) -> bo
             total_fee += fee
         diff = total_fee - gas_cost
         if diff > 0.002 or diff < -0.001:
-            log_msg = f'"Fees - gasCost" is {diff} for {tx_hash}: '
-            self.logger.info(log_msg)
+            self.logger.info(
+                f'"Fees - gasCost" is {diff} for {competition_data["transactionHash"]}.'
+            )
         return True
 
     def run(self, tx_hash: str) -> bool: