While building python-dateutil it is possible to see the following error: {...}/tmp/work/x86_64-wrs-linux/python-dateutil-2.1-0/temp/do_compile/run.do_compile.4909: 104: {...}run.do_compile.4909: {...}/tmp/sysroots/x86_64-linux/usr/bin/python-native/python: not found | ERROR: python setup.py build_ext execution failed. This is caused by a 'DEPENDS =' being defined after some lines of 'inherit' thus overwriting any DEPENDS assignments set in the inherits.
Build another package which will ensure python-native is populated in the sysroot.
bitbake python-dateutil rm -rf tmp bitbake python-dateutil -c compile