> portmaster -o devel/py-setuptools py27-setuptools-36.5.0 That way for py27 is okay. But, "portmaster -o devel/py-setuptools py36-setuptools" fuses dependency trees with py27-setuptools. To fix it, we need to use the "make deinstall install" directly into the list of "pkg query %o `pkg info -qrg 'py27-*'` | sort -u".