ruff exceptions: various

mmgen/fileutil.py

@@ -287,8 +287,8 @@ def get_words_from_file(cfg, infile, *, desc, quiet=False):
 
 	try:
 		words = data.decode().split()
-	except:
-		die(1, f'{capfirst(desc)} data must be UTF-8 encoded.')
+	except UnicodeError as e:
+		die(1, f'{capfirst(desc)} data must be UTF-8 encoded ({e})')
 
 	cfg._util.dmsg('Sanitized input: [{}]'.format(' '.join(words)))
 

mmgen/msg.py

@@ -362,7 +362,7 @@ def _get_obj(clsname, cfg, *args, coin=None, network='mainnet', infile=None, dat
 	try:
 		msg_cls = importlib.import_module(
 			f'mmgen.proto.{proto.base_proto_coin.lower()}.msg').coin_msg
-	except:
+	except ImportError:
 		die(1, f'Message signing operations not supported for {proto.base_proto} protocol')
 
 	me = MMGenObject.__new__(getattr(msg_cls, clsname, getattr(coin_msg, clsname)))

mmgen/term.py

@@ -34,8 +34,8 @@ match gc.platform:
 	case 'win32':
 		try:
 			import msvcrt # pylint: disable=import-error
-		except:
-			die(2, 'Unable to set terminal mode')
+		except ImportError as e:
+			die(2, f'Unable to set terminal mode ({e})')
 		if not sys.stdin.isatty():
 			msvcrt.setmode(sys.stdin.fileno(), os.O_BINARY)
 	case x:

mmgen/tx/new_swap.py

@@ -25,7 +25,7 @@ from .new import New
 def get_send_proto(cfg):
 	try:
 		arg = cfg._args.pop(0)
-	except:
+	except IndexError:
 		cfg._usage()
 	return init_swap_proto(cfg, get_swap_asset(cfg, arg, direction='send'))
 
@@ -93,7 +93,7 @@ class NewSwap(BaseSwapMethods, New):
 		def get_arg():
 			try:
 				return args_in.pop(0)
-			except:
+			except IndexError:
 				self.cfg._usage()
 
 		async def parse():

test/cmdtest_d/base.py

@@ -148,6 +148,6 @@ class CmdTestBase:
 		imsg(purple(f'Killing {desc} [PID {pid}]'))
 		try:
 			os.kill(pid, SIGTERM)
-		except:
+		except ProcessLookupError:
 			imsg(yellow(f'{pid}: no such process'))
 		return 'ok'

test/cmdtest_d/include/common.py

@@ -175,7 +175,7 @@ def get_comment(do_shuffle=False):
 	global label_iter
 	try:
 		return next(label_iter)
-	except:
+	except (NameError, StopIteration):
 		if do_shuffle:
 			shuffle(labels)
 		label_iter = iter(labels)