From 518b2f403f5833bfa9d0154d2b50308e96102bc7 Mon Sep 17 00:00:00 2001
From: The MMGen Project <mmgen@tuta.io>
Date: Sun, 6 Sep 2026 10:08:41 +0000
Subject: [PATCH] `proto.btc.tx.data_output` -> `tx.data_output`

---
 mmgen/proto/btc/tx/base.py              | 2 +-
 mmgen/proto/btc/tx/new.py               | 9 ---------
 mmgen/proto/eth/tx/new.py               | 3 +++
 mmgen/{proto/btc => }/tx/data_output.py | 8 ++++----
 mmgen/tx/new.py                         | 8 +++++++-
 test/modtest_d/tx.py                    | 2 +-
 6 files changed, 16 insertions(+), 16 deletions(-)
 rename mmgen/{proto/btc => }/tx/data_output.py (93%)

diff --git a/mmgen/proto/btc/tx/base.py b/mmgen/proto/btc/tx/base.py
index b496c83f..c824ada0 100755
--- a/mmgen/proto/btc/tx/base.py
+++ b/mmgen/proto/btc/tx/base.py
@@ -18,7 +18,7 @@ from ....tx.base import Base as TxBase
 from ....obj import MMGenList, HexStr, ListItemAttr
 from ....util import msg, make_chksum_6, die, pp_fmt
 
-from .data_output import DataOutput
+from ....tx.data_output import DataOutput
 
 def data2scriptPubKey(data):
 	return '6a' + '{:02x}'.format(len(data)) + data.hex() # OP_RETURN data
diff --git a/mmgen/proto/btc/tx/new.py b/mmgen/proto/btc/tx/new.py
index a7272ca8..eaa19e88 100755
--- a/mmgen/proto/btc/tx/new.py
+++ b/mmgen/proto/btc/tx/new.py
@@ -27,15 +27,6 @@ class New(Base, TxNew):
 	async def set_gas(self, *, to_addr=None, force=False):
 		return None
 
-	def process_data_output_arg(self, arg):
-		if any(arg.startswith(pfx) for pfx in ('data:', 'hexdata:')):
-			if hasattr(self, '_have_op_return_data'):
-				die(1, 'Transaction may have at most one OP_RETURN data output!')
-			self._have_op_return_data = True
-			from .data_output import DataOutput
-			DataOutput(self.proto, arg) # test data for validity
-			return arg
-
 	@property
 	def relay_fee(self):
 		kb_fee = self.proto.coin_amt(self.rpc.cached['networkinfo']['relayfee'])
diff --git a/mmgen/proto/eth/tx/new.py b/mmgen/proto/eth/tx/new.py
index c41fa68a..46ee7cc6 100755
--- a/mmgen/proto/eth/tx/new.py
+++ b/mmgen/proto/eth/tx/new.py
@@ -39,6 +39,9 @@ class New(VmNew, Base, TxBase.New):
 				self.usr_contract_data = bytes.fromhex(fp.read().strip())
 			self.disable_fee_check = True
 
+	def process_data_output_arg(self, arg):
+		pass
+
 	async def get_gas_estimateGas(self, *, to_addr):
 		return self.dfl_gas
 
diff --git a/mmgen/proto/btc/tx/data_output.py b/mmgen/tx/data_output.py
similarity index 93%
rename from mmgen/proto/btc/tx/data_output.py
rename to mmgen/tx/data_output.py
index a4261d0c..b155e21a 100755
--- a/mmgen/proto/btc/tx/data_output.py
+++ b/mmgen/tx/data_output.py
@@ -9,10 +9,10 @@
 #   https://gitlab.com/mmgen/mmgen-wallet
 
 """
-proto.btc.tx.data_output: Bitcoin data output class
+tx.data_output: transaction data output class
 """
 
-from ....obj import InitErrors
+from ..obj import InitErrors
 
 class DataOutput(bytes, InitErrors):
 
@@ -28,7 +28,7 @@ class DataOutput(bytes, InitErrors):
 
 		if data_spec.startswith('hexdata:'):
 			hexdata = data_spec[8:]
-			from ....util import is_hex_str
+			from ..util import is_hex_str
 			assert is_hex_str(hexdata), f'{hexdata!r}: {cls.desc} hexdata not in hexadecimal format'
 			assert not len(hexdata) % 2, f'{len(hexdata)}: {cls.desc} hexdata of non-even length'
 			ret = bytes.fromhex(hexdata)
@@ -71,7 +71,7 @@ class DataOutput(bytes, InitErrors):
 
 	def hl(self, *, add_label=False):
 		'colorize and optionally label the result of str()'
-		from ....color import blue, pink
+		from ..color import blue, pink
 		ret = str(self)
 		if add_label:
 			return blue(self.desc + (' (hex): ' if self.display_hex else ': ')) + pink(ret)
diff --git a/mmgen/tx/new.py b/mmgen/tx/new.py
index a34fd75f..db8e6451 100755
--- a/mmgen/tx/new.py
+++ b/mmgen/tx/new.py
@@ -172,7 +172,13 @@ class New(Base):
 			self.Output(self.proto, addr=coinaddr, amt=amt, is_chg=is_chg, is_vault=is_vault, data=data))
 
 	def process_data_output_arg(self, arg):
-		return None
+		if any(arg.startswith(pfx) for pfx in ('data:', 'hexdata:')):
+			if hasattr(self, '_have_data_output'):
+				die(1, 'Transaction may have at most one data output!')
+			self._have_data_output = True
+			from .data_output import DataOutput
+			DataOutput(self.proto, arg) # test data for validity
+			return arg
 
 	def parse_cmdline_arg(self, proto, arg_in, ad_f, ad_w):
 
diff --git a/test/modtest_d/tx.py b/test/modtest_d/tx.py
index ab70004b..55b3737e 100755
--- a/test/modtest_d/tx.py
+++ b/test/modtest_d/tx.py
@@ -114,7 +114,7 @@ class unit_tests:
 
 	def data_output(self, name, ut, desc='DataOutput class'):
 		max_len = cfg._proto.max_op_return_data_len
-		from mmgen.proto.btc.tx.data_output import DataOutput
+		from mmgen.tx.data_output import DataOutput
 		vecs = [
 			'data:=:ETH.ETH:0x86d526d6624AbC0178cF7296cD538Ecc080A95F1:0/1/0',
 			'hexdata:3d3a4554482e4554483a30783836643532366436363234416243303137'