Fix encoding issues in trace function

myth

@@ -103,10 +103,10 @@ elif (args.trace):
         exitWithError("Disassembler: Provide the input bytecode via -c BYTECODE or --id ID")
 
     if (args.data):
-        output = evm.trace(util.safe_decode(encoded_bytecode), args.address, args.data)
+        output = evm.trace(encoded_bytecode, args.address, args.data)
 
     else:
-        output = evm.trace(util.safe_decode(encoded_bytecode), args.address)
+        output = evm.trace(encoded_bytecode, args.address)
 
     print(output)
 

mythril/ether/util.py

@@ -1,15 +1,19 @@
 from mythril.rpc.client import EthJsonRpc
-import codecs
 from ethereum.abi import encode_abi, encode_int
 from ethereum.utils import zpad
 from ethereum.abi import method_id
 
 
 def safe_decode(hex_encoded_string):
+
+    # print(type(hex_encoded_string))
+
     if (hex_encoded_string.startswith("0x")):
-        return codecs.decode(hex_encoded_string[2:], 'hex_codec')
+        return bytes.fromhex(hex_encoded_string[2:])
+        # return codecs.decode(, 'hex_codec')
     else:
-        return codecs.decode(hex_encoded_string, 'hex_codec')
+        return bytes.fromhex(hex_encoded_string)
+        # return codecs.decode(hex_encoded_string, 'hex_codec')
 
 
 def bytecode_from_blockchain(creation_tx_hash, rpc_host='127.0.0.1', rpc_port=8545):