Unexpected input(s) 'cached', valid inputs are ['dir', 'version', 'host', 'target', 'arch', 'install-deps', 'modules', 'archives', 'cache', 'cache-key-prefix', 'setup-python', 'tools', 'add-tools-to-path', 'set-env', 'no-qt-binaries', 'tools-only', 'aqtversion', 'py7zrversion', 'extra', 'source', 'src-archives', 'documentation', 'doc-archives', 'doc-modules', 'examples', 'example-archives', 'example-modules']

p7zip 17.06 is already installed and up-to-date. To reinstall 17.06, run: brew reinstall p7zip