From 3c09172d84822fbc3ed30e1d24772d223d2315b7 Mon Sep 17 00:00:00 2001
From: Arjan Zijderveld <5286904+arjanz@users.noreply.github.com>
Date: Thu, 28 Dec 2023 16:24:59 +0100
Subject: [PATCH] Catch exception during init

---
 substrateinterface/contracts.py | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

diff --git a/substrateinterface/contracts.py b/substrateinterface/contracts.py
index 5d5f307..89425e3 100644
--- a/substrateinterface/contracts.py
+++ b/substrateinterface/contracts.py
@@ -22,7 +22,7 @@
 from .utils import version_tuple
 
 from substrateinterface.exceptions import ExtrinsicFailedException, DeployContractFailedException, \
-    ContractReadFailedException, ContractMetadataParseException
+    ContractReadFailedException, ContractMetadataParseException, StorageFunctionNotFound
 from scalecodec.base import ScaleBytes, ScaleType
 from scalecodec.types import GenericContractExecResult
 from substrateinterface.base import SubstrateInterface, Keypair, ExtrinsicReceipt
@@ -722,12 +722,19 @@ def __init__(self, contract_address: str, metadata: ContractMetadata = None, sub
 
     def init(self):
         # Determine ContractExecResult according to PalletVersion
-        pallet_version = self.substrate.query("Contracts", "PalletVersion")
+        try:
+            pallet_version = self.substrate.query("Contracts", "PalletVersion")
 
-        if pallet_version.value <= 9:
-            self.substrate.runtime_config.update_type_registry_types({"ContractExecResult": "ContractExecResultTo267"})
-        else:
-            self.substrate.runtime_config.update_type_registry_types({"ContractExecResult": "ContractExecResultTo269"})
+            if pallet_version.value <= 9:
+                self.substrate.runtime_config.update_type_registry_types(
+                    {"ContractExecResult": "ContractExecResultTo267"}
+                )
+            else:
+                self.substrate.runtime_config.update_type_registry_types(
+                    {"ContractExecResult": "ContractExecResultTo269"}
+                )
+        except StorageFunctionNotFound:
+            pass
 
     @classmethod
     def create_from_address(cls, contract_address: str, metadata_file: str,