From a75234bb9ec64fa2af8aa175f98cbba5b79a41e7 Mon Sep 17 00:00:00 2001
From: The MMGen Project <mmgen@tuta.io>
Date: Fri, 7 Aug 2026 09:37:46 +0000
Subject: [PATCH] ruff B023 (function definition in loop)

---
 mmgen/proto/btc/tx/info.py | 52 ++++++++++++++++++++------------------
 pyproject.toml             |  1 -
 test/modtest_d/swap.py     | 36 +++++++++++++-------------
 3 files changed, 47 insertions(+), 42 deletions(-)

diff --git a/mmgen/proto/btc/tx/info.py b/mmgen/proto/btc/tx/info.py
index df97ae7a..f0c292db 100755
--- a/mmgen/proto/btc/tx/info.py
+++ b/mmgen/proto/btc/tx/info.py
@@ -99,33 +99,37 @@ class TxInfo(TxInfo):
 					if have_bch and e.addr:
 						yield '{:3} [{}]\n'.format('', e.addr.hl(vp2, color=False))
 			else:
-				col1_w = len(str(len(io))) + 1
-				for n, e in enumerate(io_sorted()):
+				def gen(n, e):
 					mmid_fmt = get_mmid_fmt(e, is_input)
+					if is_input:
+						yield (n+1, 'tx,vout:', f'{e.txid.hl()},{red(str(e.vout))}')
+						yield ('',  'address:', f'{e.addr.hl(vp1)} {mmid_fmt}')
+						if have_bch:
+							yield ('', '', f'[{e.addr.hl(vp2, color=False)}]')
+					else:
+						yield (
+							n + 1,
+							'address:',
+							(f'{e.addr.hl(vp1)} {mmid_fmt}' if e.addr else e.data.hl(add_label=True)))
+						if have_bch and e.addr:
+							yield ('', '', f'[{e.addr.hl(vp2, color=False)}]')
+
+					if e.comment:
+						yield ('',  'comment:', e.comment.hl())
+
+					yield     ('',  'amount:',  f'{e.amt.hl()} {tx.dcoin}')
+
 					if is_input and blockcount:
 						confs = e.confs + blockcount - tx.blockcount
-						days = int(confs // confs_per_day)
-					def gen():
-						if is_input:
-							yield (n+1, 'tx,vout:', f'{e.txid.hl()},{red(str(e.vout))}')
-							yield ('',  'address:', f'{e.addr.hl(vp1)} {mmid_fmt}')
-							if have_bch:
-								yield ('', '', f'[{e.addr.hl(vp2, color=False)}]')
-						else:
-							yield (
-								n + 1,
-								'address:',
-								(f'{e.addr.hl(vp1)} {mmid_fmt}' if e.addr else e.data.hl(add_label=True)))
-							if have_bch and e.addr:
-								yield ('', '', f'[{e.addr.hl(vp2, color=False)}]')
-						if e.comment:
-							yield ('',  'comment:', e.comment.hl())
-						yield     ('',  'amount:',  f'{e.amt.hl()} {tx.dcoin}')
-						if is_input and blockcount:
-							yield ('',  'confirmations:', f'{confs} (around {days} days)')
-						if not is_input and e.is_chg:
-							yield ('',  'change:',  green('True'))
-					yield '\n'.join('{:>{w}} {:<8} {}'.format(*d, w=col1_w) for d in gen()) + '\n\n'
+						yield ('', 'confirmations:', f'{confs} (around {confs // confs_per_day} days)')
+
+					if not is_input and e.is_chg:
+						yield ('',  'change:',  green('True'))
+
+				col1_w = len(str(len(io))) + 1
+
+				for n, e in enumerate(io_sorted()):
+					yield '\n'.join('{:>{w}} {:<8} {}'.format(*d, w=col1_w) for d in gen(n, e)) + '\n\n'
 
 		tx = self.tx
 
diff --git a/pyproject.toml b/pyproject.toml
index 86a4a884..2c27f374 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,7 +19,6 @@ ignore = [
 	"ASYNC221", # blocking method in async function (mmgen/rpc/backends/curl.py)
 	"B006", # Do not use mutable data structures for argument defaults
 	"B018", # Found useless expression. Either assign it to a variable or remove it.
-	"B023", # Function definition does not bind loop variable `confs`
 	"B026", # Star-arg unpacking after a keyword argument is strongly discouraged
 	"BLE001", # Do not catch blind exception: `Exception`
 	"C401", # Unnecessary generator (rewrite as a set comprehension)
diff --git a/test/modtest_d/swap.py b/test/modtest_d/swap.py
index 3b059842..a29c70a6 100755
--- a/test/modtest_d/swap.py
+++ b/test/modtest_d/swap.py
@@ -81,6 +81,24 @@ class unit_tests:
 
 	def memo(self, name, ut, desc='Swap transaction memo'):
 
+		def bad(s):
+			return lambda: Memo.parse(s)
+
+		def bad10(swap_cfg):
+			def inner():
+				coin = 'BTC'
+				proto = init_proto(cfg, coin, need_amt=True)
+				addr = make_burn_addr(proto, 'C')
+				asset = SwapAsset(coin, 'send')
+				Memo(swap_cfg, proto, asset, addr, trade_limit=None)
+			return inner
+
+		def bad11():
+			SwapAsset('XYZ', 'send')
+
+		def bad12():
+			SwapAsset('DOGE', 'send')
+
 		for coin, addrtype, asset_name, token in (
 			('ltc', 'bech32',     'LTC',      None),
 			('bch', 'compressed', 'BCH',      None),
@@ -158,22 +176,6 @@ class unit_tests:
 
 			vmsg('\nTesting error handling:')
 
-			def bad(s):
-				return lambda: Memo.parse(s)
-
-			def bad10():
-				coin = 'BTC'
-				proto = init_proto(cfg, coin, need_amt=True)
-				addr = make_burn_addr(proto, 'C')
-				asset = SwapAsset(coin, 'send')
-				Memo(swap_cfg, proto, asset, addr, trade_limit=None)
-
-			def bad11():
-				SwapAsset('XYZ', 'send')
-
-			def bad12():
-				SwapAsset('DOGE', 'send')
-
 			ut.process_bad_data((
 				('bad1',  'SwapMemoParseError', 'must contain',      bad('x')),
 				('bad2',  'SwapMemoParseError', 'must contain',      bad('y:z:x')),
@@ -182,7 +184,7 @@ class unit_tests:
 				('bad5',  'SwapMemoParseError', 'failed to parse',   bad('=:l:foobar:n')),
 				('bad6',  'SwapMemoParseError', 'invalid specifier', bad('=:l:foobar:x/3/0')),
 				('bad7',  'SwapMemoParseError', 'extra',             bad('=:l:foobar:0/3/0:x')),
-				('bad10', 'AssertionError',     'recv',              bad10),
+				('bad10', 'AssertionError',     'recv',              bad10(swap_cfg)),
 				('bad11', 'SwapAssetError',     'unrecognized',      bad11),
 				('bad12', 'SwapAssetError',     'unsupported',       bad12),
 			), pfx='')