python,runfiles: runfiles library in @bazel_tools

Also update the Python stub script template to set
$RUNFILES_MANIFEST_FILE or $RUNFILES_DIR so the
runfiles library only needs to look for those.

See https://github.com/bazelbuild/bazel/issues/4460

RELNOTES[NEW]: python,runfiles: You can now depend on `@bazel_tools//tools/runfiles:py-runfiles` to get a platform-independent runfiles library for Python. See DocString of https://github.com/bazelbuild/bazel/blob/master/src/tools/runfiles/runfiles.py for usage information.

Change-Id: I4f68a11cb59f2782e5203e39fe60cc66b46023a2
PiperOrigin-RevId: 184515490
13 files changed
tree: e24dddc2d457ffdb908b3326f05748876c9955ef
  1. examples/
  2. scripts/
  3. site/
  4. src/
  5. third_party/
  6. tools/
  7. .gitattributes
  8. .gitignore
  9. AUTHORS
  10. BUILD
  11. CHANGELOG.md
  12. combine_distfiles.py
  13. combine_distfiles_to_tar.sh
  14. compile.sh
  15. CONTRIBUTING.md
  16. CONTRIBUTORS
  17. ISSUE_TEMPLATE.md
  18. LICENSE
  19. README.md
  20. WORKSPACE
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