$ emerge -pv media-sound/pulseeffects

These are the packages that would be merged, in order:

Calculating dependencies  ... ... done!
[ebuild   R    ] media-sound/pulseeffects-3.2.3::gentoo  PYTHON_TARGETS="python3_5 python3_6 -python3_4" 0 KiB

Total: 1 package (1 reinstall), Size of downloads: 0 KiB