message: Comment out nightly, as it is not needed for release
diff: if [[ ( ${TRAVIS_BRANCH} == "master" ) && ( ${TRAVIS_EVENT_TYPE} != "pull_request" ) ]]; then
  - twine upload wheelhouse/tensorflow_io_nightly-*.whl
  + # twine upload wheelhouse/tensorflow_io_nightly-*.whl
  for entry in wheelhouse/tensorflow_io-*.whl ; do
  if [[ $(uname) == "Darwin" ]]; then
  