From 23dcf58b7d17a66742e1a74f181a1d01bf9c530c Mon Sep 17 00:00:00 2001
From: The MMGen Project <mmgen@tuta.io>
Date: Tue, 29 Sep 2026 09:23:31 +0000
Subject: [PATCH] new module: `swap.util`

---
 mmgen/help/help_notes.py |  2 +-
 mmgen/main_txcreate.py   |  2 +-
 mmgen/swap/util.py       | 26 ++++++++++++++++++++++++++
 mmgen/tx/base.py         |  2 +-
 mmgen/tx/new_swap.py     | 14 +-------------
 5 files changed, 30 insertions(+), 16 deletions(-)
 create mode 100755 mmgen/swap/util.py

diff --git a/mmgen/help/help_notes.py b/mmgen/help/help_notes.py
index 4c859da3..e23bd4d4 100755
--- a/mmgen/help/help_notes.py
+++ b/mmgen/help/help_notes.py
@@ -62,7 +62,7 @@ class help_notes:
 		return pfx + sep.join(u[0] for u in cu[:-1]) + ('', conj)[len(cu)>1] + cu[-1][0] + sfx
 
 	def stream_interval(self):
-		from ..tx.new_swap import get_swap_proto_mod
+		from ..swap.util import get_swap_proto_mod
 		return get_swap_proto_mod(self.cfg.swap_proto).SwapCfg(self.cfg).si.dfl
 
 	def fee_spec_names(self, *, proto=None, linebreak=' '):
diff --git a/mmgen/main_txcreate.py b/mmgen/main_txcreate.py
index 561f1bb2..8c48de4e 100755
--- a/mmgen/main_txcreate.py
+++ b/mmgen/main_txcreate.py
@@ -126,7 +126,7 @@ cfg = Config(opts_data=opts_data)
 
 if cfg.list_assets:
 	import sys
-	from .tx.new_swap import get_swap_proto_mod
+	from .swap.util import get_swap_proto_mod
 	sp = get_swap_proto_mod(cfg.swap_proto)
 	Msg('AVAILABLE SWAP ASSETS:\n' + sp.SwapAsset('BTC', 'send').fmt_assets_data(indent='  '))
 	sys.exit(0)
diff --git a/mmgen/swap/util.py b/mmgen/swap/util.py
new file mode 100755
index 00000000..08b79fe9
--- /dev/null
+++ b/mmgen/swap/util.py
@@ -0,0 +1,26 @@
+#!/usr/bin/env python3
+#
+# MMGen Wallet, a terminal-based cryptocurrency wallet
+# Copyright (C)2013-2026 The MMGen Project <mmgen@tuta.io>
+# Licensed under the GNU General Public License, Version 3:
+#   https://www.gnu.org/licenses
+# Public project repositories:
+#   https://github.com/mmgen/mmgen-wallet
+#   https://gitlab.com/mmgen/mmgen-wallet
+
+"""
+swap.util: swap utilities for the MMGen Wallet suite
+"""
+
+def get_swap_proto_mod(swap_proto_name):
+	import importlib
+	return importlib.import_module(f'mmgen.swap.proto.{swap_proto_name}')
+
+def init_swap_proto(cfg, asset):
+	from ..protocol import init_proto
+	return init_proto(
+		cfg,
+		asset.coin,
+		network = cfg._proto.network,
+		tokensym = asset.tokensym,
+		need_amt = True)
diff --git a/mmgen/tx/base.py b/mmgen/tx/base.py
index b605d0c7..2ca80396 100755
--- a/mmgen/tx/base.py
+++ b/mmgen/tx/base.py
@@ -225,7 +225,7 @@ class Base(MMGenObject):
 	# swap methods:
 	@cached_property
 	def swap_proto_mod(self):
-		from .new_swap import get_swap_proto_mod
+		from ..swap.util import get_swap_proto_mod
 		return get_swap_proto_mod(self.swap_proto)
 
 	@cached_property
diff --git a/mmgen/tx/new_swap.py b/mmgen/tx/new_swap.py
index 4685dbba..ac2f4d3a 100755
--- a/mmgen/tx/new_swap.py
+++ b/mmgen/tx/new_swap.py
@@ -16,19 +16,7 @@ from collections import namedtuple
 
 from .new import New
 from ..amt import UniAmt
-
-def get_swap_proto_mod(swap_proto_name):
-	import importlib
-	return importlib.import_module(f'mmgen.swap.proto.{swap_proto_name}')
-
-def init_swap_proto(cfg, asset):
-	from ..protocol import init_proto
-	return init_proto(
-		cfg,
-		asset.coin,
-		network = cfg._proto.network,
-		tokensym = asset.tokensym,
-		need_amt = True)
+from ..swap.util import get_swap_proto_mod, init_swap_proto
 
 def get_send_proto(cfg):
 	try: