lwhsu@wreck.ysv:~ % python3
Python 3.6.2 (default, Jul 18 2017, 01:51:11)
[GCC 4.2.1 Compatible FreeBSD Clang 4.0.0 (tags/RELEASE_400/final 297347)] on freebsd12
Type "help", "copyright", "credits" or "license" for more information.
>>> import select
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: /usr/local/lib/python3.6/lib-dynload/select.so: Undefined symbol "kevent"
>>>