ruff exceptions: ConnectionError

mmgen/daemon.py

@@ -231,7 +231,7 @@ class Daemon(Lockable):
 		import socket
 		try:
 			socket.create_connection((host, port), timeout=timeout).close()
-		except:
+		except ConnectionError:
 			return False
 		else:
 			return True

mmgen/proto/xmr/daemon.py

@@ -132,7 +132,7 @@ class MoneroWalletDaemon(RPCDaemon):
 			import socket
 			try:
 				socket.create_connection(('localhost', self.monerod_port), timeout=1).close()
-			except:
+			except ConnectionError:
 				die('SocketError', f'Unable to connect to Monero daemon at localhost:{self.monerod_port}')
 
 		self.user = user or self.cfg.wallet_rpc_user or self.cfg.monero_wallet_rpc_user

mmgen/rpc/local.py

@@ -44,7 +44,7 @@ class RPCClient:
 			import socket
 			try:
 				socket.create_connection((host, port), timeout=1).close()
-			except:
+			except ConnectionError:
 				die('SocketError', f'Unable to connect to {host}:{port}')
 
 		self.http_hdrs = {'Content-Type': 'application/json'}

mmgen/util2.py

@@ -248,7 +248,7 @@ def port_in_use(port):
 	import socket
 	try:
 		socket.create_connection(('localhost', port)).close()
-	except:
+	except ConnectionError:
 		return False
 	else:
 		return True