Just to clarify: I'm using pikaur, and I get "Yes" as default on first two prompts, but "No" as default on the last one. So it's Enter, Enter, y Enter instead of just pressing Enter.
:: Starting full system upgrade...
:: Replace python-dbus with world/dbus-python? [Y/n]
:: Replace python-dbus-common with world/dbus-python? [Y/n]
resolving dependencies...
looking for conflicting packages...
:: dbus-python and python2-dbus are in conflict. Remove python2-dbus? [y/N] y