DEBUG log IRCBot.connect failure stacktrace

bitbotd

@@ -157,7 +157,7 @@ if len(server_configs):
 
     for server in servers:
         if not bot.connect(server):
-            log.error("Failed to connect to '%s'" % str(server))
+            log.error("Failed to connect to '%s'", [str(server)], exc_info=True)
             if not args.startup_disconnects:
                 sys.exit(3)
 

src/IRCBot.py

@@ -203,6 +203,7 @@ class Bot(object):
         except Exception as e:
             self.log.warn("Failed to connect to %s: %s",
                 [str(server), str(e)])
+            self.log.debug("Connection failure reason:", exc_info=True)
             return False
         self.servers[server.fileno()] = server
         self._read_poll.register(server.fileno(), select.POLLIN)