Small fix to build with --incompatible_disallow_legacy_py_provider (#99)
Small fix to build with --incompatible_disallow_legacy_py_provider (#99)

This incompatible change flag, and the PyInfo provider it requires, were introduced in Bazel 0.23. The incompatible change may be enabled as soon as Bazel 0.25.
bazelbuild/rules_appengine,bazelbuild/rules_appengine