seems there is some syntax error in meta-python/recipes-devtools/python/python3-fasteners_0.16.3.bb recipe
here is syntax which is giving some error.
RDEPENDS:${PN} += "
${PYTHON_PN}-logging
${PYTHON_PN}-fcntl
"
correct syntax working for me is following. also aligned with yocto manual.
*RDEPENDS_${PN} += "*
${PYTHON_PN}-logging
${PYTHON_PN}-fcntl
"