pkg_add: no pkg found for 'py36-expat-[0-9]*', sorry.
pkg_add: Can't install dependency py36-expat-[0-9]*
pkg_add: Can't install dependency py36-setuptools-[0-9]*
pkg_add: Can't install dependency py36-asn1crypto>=0.21.0
pkg_add: Can't install dependency py36-cryptography>=2.8
pkg_add: Can't install dependency py36-OpenSSL>=0.14
pkg_add: no pkg found for 'py36-expat-[0-9]*', sorry.
pkg_add: Can't install dependency py36-expat-[0-9]*
libffi-3.3nb4: registering info file /usr/pkg/info/libffi.info
pkg_add: 2 package additions failed