--- fail2ban/client/csocket.py.orig	2018-04-08 10:28:39.135695000 +0200

+++ fail2ban/client/csocket.py	2018-04-08 10:35:39.403548000 +0200

@@ -43,7 +43,7 @@

 		self.__csock.connect(sock)

 	def __del__(self):

-		self.close(False)

+		self.close()

 	def send(self, msg, nonblocking=False, timeout=None):

 		# Convert every list member to string

@@ -56,13 +56,18 @@

 	def settimeout(self, timeout):

 		self.__csock.settimeout(timeout if timeout != -1 else self.__deftout)

-	def close(self, sendEnd=True):

+	def close(self):

 		if not self.__csock:

 			return

-		if sendEnd:

+		try:

 			self.__csock.sendall(CSPROTO.CLOSE + CSPROTO.END)

-		self.__csock.shutdown(socket.SHUT_RDWR)

-		self.__csock.close()

+			self.__csock.shutdown(socket.SHUT_RDWR)

+		except socket.error: # pragma: no cover - normally unreachable

+			pass

+		try:

+			self.__csock.close()

+		except socket.error: # pragma: no cover - normally unreachable

+			pass

 		self.__csock = None

 	@staticmethod