!!! The ebuild selected to satisfy "compton" has unmet requirements.
- x11-misc/compton-0.1_beta2::gentoo USE="dbus drm opengl pcre xinerama" ABI_X86="(64)" PYTHON_TARGETS="-python3_6"

  The following REQUIRED_USE flag constraints are unsatisfied:
    python_targets_python3_6

  The above constraints are a subset of the following complete expression:
    any-of ( python_targets_python3_6 )