From 28e06ae168d9c8bc654b5af854cd4a623b7508de Mon Sep 17 00:00:00 2001
From: The MMGen Project <mmgen@tuta.io>
Date: Fri, 7 Aug 2026 09:37:47 +0000
Subject: [PATCH] ruff SIM103 (return the negated condition directly)

---
 mmgen/proto/btc/rpc/local.py   |  5 +----
 mmgen/proto/vm/tx/completed.py |  4 +---
 mmgen/wallet/mmgen.py          | 13 +++++++------
 pyproject.toml                 |  1 -
 4 files changed, 9 insertions(+), 14 deletions(-)

diff --git a/mmgen/proto/btc/rpc/local.py b/mmgen/proto/btc/rpc/local.py
index 84629be1..7db35a6a 100755
--- a/mmgen/proto/btc/rpc/local.py
+++ b/mmgen/proto/btc/rpc/local.py
@@ -406,10 +406,7 @@ class BitcoinRPCClient(RPCClient, metaclass=AsyncInit):
 			except:
 				pass
 
-			if self.cfg.test_suite and not self.chain == 'regtest':
-				return True
-
-			return False
+			return self.cfg.test_suite and not self.chain == 'regtest'
 
 		return locals()[info_id]()
 
diff --git a/mmgen/proto/vm/tx/completed.py b/mmgen/proto/vm/tx/completed.py
index d97d68b6..dff32374 100755
--- a/mmgen/proto/vm/tx/completed.py
+++ b/mmgen/proto/vm/tx/completed.py
@@ -30,9 +30,7 @@ class Completed:
 
 	def check_sigs(self): # TODO
 		from ....util import is_hex_str
-		if is_hex_str(self.serialized):
-			return True
-		return False
+		return is_hex_str(self.serialized)
 
 	def check_pubkey_scripts(self):
 		pass
diff --git a/mmgen/wallet/mmgen.py b/mmgen/wallet/mmgen.py
index 139cf125..6d969ba5 100755
--- a/mmgen/wallet/mmgen.py
+++ b/mmgen/wallet/mmgen.py
@@ -106,12 +106,13 @@ class wallet(wallet):
 				msg(f'Incorrect master checksum ({lines[0]}) in {desc} data')
 				return False
 
-			chk = make_chksum_6(' '.join(lines[1:]))
-			if not self.cfg._util.compare_chksums(lines[0], 'master', chk, 'computed',
-						hdr='For wallet master checksum', verbose=True):
-				return False
-
-			return True
+			return self.cfg._util.compare_chksums(
+				lines[0],
+				'master',
+				make_chksum_6(' '.join(lines[1:])),
+				'computed',
+				hdr = 'For wallet master checksum',
+				verbose = True)
 
 		lines = self.fmt_data.splitlines()
 		if not check_master_chksum(lines, self.desc):
diff --git a/pyproject.toml b/pyproject.toml
index 23264d64..5f43eaf2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -34,7 +34,6 @@ ignore = [
 	"S102", # Use of `exec` detected
 	"S110", # `try`-`except`-`pass` detected, consider logging the exception
 	"SIM102", # Use a single `if` statement instead of nested `if` statements
-	"SIM103", # Return the negated condition directly
 	"SIM114", # Combine `if` branches using logical `or` operator
 	"SIM115", # Use a context manager for opening files
 	"SIM118", # Use `key in dict` instead of `key in dict.keys()`