From 379a041e8d802c2615ba2d15d4e5545657929d96 Mon Sep 17 00:00:00 2001
From: The MMGen Project <mmgen@tuta.io>
Date: Wed, 9 Sep 2026 18:33:59 +0000
Subject: [PATCH] tx.completed: new `DummyCompleted` class

---
 mmgen/tx/completed.py | 7 +++++++
 mmgen/tx/file.py      | 4 ++--
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/mmgen/tx/completed.py b/mmgen/tx/completed.py
index 12fc5e34..5fe6f494 100755
--- a/mmgen/tx/completed.py
+++ b/mmgen/tx/completed.py
@@ -103,3 +103,10 @@ class Completed(Base):
 
 		if self.is_swap:
 			raise ValueError('missing or invalid memo in swap transaction')
+
+class DummyCompleted: # required by MMGenTxFile.get_proto()
+
+	desc = 'dummy transaction'
+
+	def __init__(self, cfg):
+		self.cfg = cfg
diff --git a/mmgen/tx/file.py b/mmgen/tx/file.py
index e389aa08..0ceec6b1 100755
--- a/mmgen/tx/file.py
+++ b/mmgen/tx/file.py
@@ -336,7 +336,7 @@ class MMGenTxFile(MMGenObject):
 
 	@classmethod
 	def get_proto(cls, cfg, filename, *, quiet_open=False):
-		from . import BaseTX
-		tmp_tx = BaseTX(cfg=cfg)
+		from .completed import DummyCompleted
+		tmp_tx = DummyCompleted(cfg=cfg)
 		cls(tmp_tx).parse(filename, get_proto_only=True, quiet_open=quiet_open)
 		return tmp_tx.proto