missing bytes prefix on string

Author: pipermerriam

ethereum/tests/test_abi.py

@@ -54,7 +54,7 @@ def test_abi_decode_single_bytes():
     assert (b'\x01\x02' + b'\x00'*6) == abi.decode_single(typ, abi.encode_single(typ, '\x01\x02'))
 
     typ = ['bytes', '', []]
-    assert b'\x01\x02' == abi.decode_single(typ, abi.encode_single(typ, '\x01\x02'))
+    assert b'\x01\x02' == abi.decode_single(typ, abi.encode_single(typ, b'\x01\x02'))
 
 def test_abi_encode_single_prefixed_address():
     prefixed_address = '0x' + '0'*40