Only trace ipv4 not working without kernel CONF_IPV6 set

I have a systematic issue to use only trace IPv4 family for tcpconnect and network performance tools.
A python error code notices that ipv6 structs are undefined...

So I am not able to use network tools because my kernel do not compile conf_ipv6. Is it normal?
Network BCC tools hard depends on CONF_IPV6 ? It wasn't written to readme requierments so I am asking if they is a way to do it without this dependency. Perhaps I can rewrite your python codes to exclude ipv6 support.

BCC is an amazing tools suites. Good continuation.

Best regard,