chore: ensure 0x is always prepended

Polymarket · Jul 29, 2024 · 60c75e1 · 60c75e1
1 parent 0db4618
commit 60c75e1
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/py_order_utils/builders/base_builder.py b/py_order_utils/builders/base_builder.py
@@ -29,7 +29,10 @@ def _create_struct_hash(self, order: EIP712Struct):
         """
         Creates an EIP712 compliant struct hash for the Order
         """
-        return "0x" + keccak(order.signable_bytes(domain=self.domain_separator)).hex()
+        struct_hash = keccak(order.signable_bytes(domain=self.domain_separator)).hex()
+        if len(struct_hash) > 2 and struct_hash[:2] != "0x":
+            struct_hash = f"0x{struct_hash}"
+        return struct_hash
 
     def sign(self, struct_hash):
         """