games-rpg/open-adventure: fix dev-python/pyyaml dependency

Closes: https://bugs.gentoo.org/918627
Signed-off-by: Nicola Smaniotto <smaniotto.nicola@gmail.com>

games-rpg/open-adventure/open-adventure-1.16.ebuild

@@ -15,12 +15,15 @@ SLOT="0"
 KEYWORDS="~amd64"
 
 BDEPEND="
-	${PYTHON_DEPS}
 	$(python_gen_any_dep 'dev-python/pyyaml[${PYTHON_USEDEP}]' )
 "
 
 DOCS=( NEWS.adoc hints.adoc history.adoc README.adoc notes.adoc )
 
+python_check_deps() {
+	python_has_version "dev-python/pyyaml[${PYTHON_USEDEP}]"
+}
+
 src_compile() {
 	emake advent advent.6
 }