experimenting with a solution for the packaging with easyinstall that was suggested by Ross Burton on the oe mailing list

meta/recipes-devtools/python/python-rospkg_1.0.15.bb

@@ -12,6 +12,6 @@ S = "${WORKDIR}/${SRCNAME}-${PV}"
 
 inherit distutils
 
-EASYINSTALL_python-rospkg = "./rospkg-1.0.15-py2.7.egg"
-
-inherit easyinstall
+DISTUTILS_INSTALL_ARGS = "--single-version-externally-managed \
+                          --root=${D} \
+                          --install-lib=${PYTHON_SITEPACKAGES_DIR}"

meta/recipes-devtools/python/python-setuptools_0.6c11.bb

@@ -30,8 +30,8 @@ RDEPENDS_${PN} = "\
 SRC_URI[md5sum] = "7df2a529a074f613b509fb44feefe74e"
 SRC_URI[sha256sum] = "630fea9b726320b73ee3ca6ff61732cb32675b0389be658080fe46383b87a1d3"
 
-EASYINSTALL_${PN} = "./setuptools-0.6c11-py2.7.egg"
-
-inherit easyinstall
+DISTUTILS_INSTALL_ARGS = "--single-version-externally-managed \
+                          --root=${D} \
+                          --install-lib=${PYTHON_SITEPACKAGES_DIR}"
 
 BBCLASSEXTEND = "native"