use socket.create_connection() for dualstack and socket timeout

bert.py

@@ -38,10 +38,8 @@ y = "\x038"
 r = "\x034"
 g = "\x033"
 
-context = ssl.create_default_context()
+# global variable for the socket, see connect()
-with socket.socket(socket.AF_INET6, socket.SOCK_STREAM) as sock:
+irc = None
-    irc = context.wrap_socket(sock, server_hostname=host)
-
 
 # Currency API
 def get_exchange():
@@ -71,11 +69,11 @@ def safeexit():
 
 
 def connect(host, port):
+   global irc
    print("Connecting to "+host+":"+str(port))
-   try:
+   context = ssl.create_default_context()
-      irc.connect((host, port))
+   with socket.create_connection((host, port)) as sock:
-   except Exception as err:
+       irc = context.wrap_socket(sock, server_hostname=host)
-      print("Connection failed! "+str(err))
 
 
 def sendRaw(data):
@@ -84,26 +82,17 @@ def sendRaw(data):
 
 def register(nick, host):
    print("Registering User...")
-   try:
    sendRaw("USER "+nick+" "+host+" "+nick+" "+nick+"\n")
-   except Exception as err:
-      print("Failed! "+str(err))
 
 
 def name(nick):
    print("Setting Nickname to "+nick)
-   try:
    sendRaw("NICK "+nick+"\n")
-   except Exception as err:
-      print("Failed! "+str(err))
 
 
 def auth(nick, password):
    print("Authenticating...")
-   try:
    sendRaw("PRIVMSG NickServ :IDENTIFY "+nick+" "+password+"\n")
-   except Exception as err:
-      print(err)
 
 
 def join(chan):
@@ -116,10 +105,7 @@ def join(chan):
 
 def mode(nick):
    print("Setting modes +B-x")
-   try:
    sendRaw("MODE "+nick+" +B-x\n")
-   except Exception as err:
-      print("Failed! "+str(err))
 
 
 def part(chan):
@@ -254,7 +240,6 @@ def ping(msg):
 
 
 def start(host, port, nick, password, chans):
-   try:
    connect(host, port)
    sleep(2)
    register(nick, host)
@@ -268,8 +253,6 @@ def start(host, port, nick, password, chans):
    for chan in chans:
       join(chan)
    sleep(2)
-   except Exception as err:
-      print("FAIL: "+str(err))
 
 
 def command_loop():
@@ -509,7 +492,11 @@ class fefe_thread(threading.Thread):
       fefe_check()
 
 def main():
+   try:
       start(host, port, nick, password, set(join_chans + fefe_chans))
+   except Exception as err:
+      print("FAIL: "+str(err))
+      sys.exit(1)
    thread_command = command_thread(1)
    #thread_fefe = fefe_thread(2)
    thread_command.start()