ok, today delete 2 time all pkg with pkg_delete `*`
and also delete the hole /usr/pkg/ *
but if compiling py-libxml2
kgconfig:/usr/pkgsrc/textproc/py-libxml2/work/.buildlink/share/pkgconfig
>PKG_CONFIG_LOG=/usr/pkgsrc/textproc/py-libxml2/work/.pkg-config.log
>PKG_CONFIG_PATH= WRAPPER_DEBUG=no WRAPPER_UPDATE_CACHE=yes >VIEWBASE=/usr/pkg
/usr/pkg/bin/python2.7 setup.py build )
failed to find and generate stubs for libxml2, aborting ...
<class 'xml.sax._exceptions.SAXReaderNotAvailable'> No parsers found
*** Error code 1
Stop.
make: stopped in /usr/pkgsrc/textproc/py-libxml2
*** Error code 1