diff --git a/dev-python/debtcollector/debtcollector-0.7.0.ebuild b/dev-python/debtcollector/debtcollector-0.7.0.ebuild
index fae6fae78057c..7baebb5128375 100644
--- a/dev-python/debtcollector/debtcollector-0.7.0.ebuild
+++ b/dev-python/debtcollector/debtcollector-0.7.0.ebuild
@@ -44,8 +44,12 @@ RDEPEND="
 	>=dev-python/wrapt-1.7.0[${PYTHON_USEDEP}]
 "
 
-python_compile_all() {
+python_prepare_all() {
 	sed -i '/^hacking/d' test-requirements.txt || die
+	distutils-r1_python_prepare_all
+}
+
+python_compile_all() {
 	use doc && esetup.py build_sphinx
 }
 
diff --git a/dev-python/oslo-config/oslo-config-2.3.0.ebuild b/dev-python/oslo-config/oslo-config-2.3.0.ebuild
index 3d4c587e49695..b275cba270068 100644
--- a/dev-python/oslo-config/oslo-config-2.3.0.ebuild
+++ b/dev-python/oslo-config/oslo-config-2.3.0.ebuild
@@ -47,9 +47,10 @@ RDEPEND="
 "
 
 python_prepare_all() {
-	sed -i '/^hacking/d' test-requirements.txt
-	sed -i '/^argparse/d' requirements.txt
+	sed -i '/^hacking/d' test-requirements.txt || die
+	sed -i '/^argparse/d' requirements.txt || die
 	use doc && esetup.py build_sphinx
+	distutils-r1_python_prepare_all
 }
 
 python_test() {
diff --git a/dev-python/oslotest/oslotest-1.10.0.ebuild b/dev-python/oslotest/oslotest-1.10.0.ebuild
index 7af4e9bd8ee50..a5967d08a10ae 100644
--- a/dev-python/oslotest/oslotest-1.10.0.ebuild
+++ b/dev-python/oslotest/oslotest-1.10.0.ebuild
@@ -40,7 +40,7 @@ RDEPEND="
 "
 
 python_prepare() {
-	sed -i '/^hacking/d' test-requirements.txt
+	sed -i '/^hacking/d' test-requirements.txt || die
 	distutils-r1_python_prepare
 }