Update bazel io_bazel_rules_python to 0.1.0

[jtattermusch]

Looks like this is required for a successful upgrade of third_party/protobuf: #25131 (comment)
More context: #24723 (comment)

Creating a separate PR with this change to ensure that this change is safe.
https://github.com/bazelbuild/rules_python/releases/tag/0.1.0

[jtattermusch]

@gnossen what's really puzzling me is why are importing github.com/bazelbuild/rules_python twice - once as io_bazel_rules_python and another time as rules_python (a few lines below), but each time at a different commit.
This is something that really should be explained in a comment - I can add an explanatory comment once I understand why this hack is needed.

[gnossen]

I think this is just an oversight. The second one doesn't even seem to be referenced anywhere:

rbellevi@rbell:~/Dev/grpc$ find . -type f -a -not -path './third_party*' -a -not -path '*venv*' -a -not -path '*virtual*' -a -not -path './git*' -exec grep -Hn rules_python {} \;
grep: ./tools/run_tests/python_utils/start_port_server.pyc: Permission denied
./summerofcode/2018/naresh.md:29:[bazelbuild/rules_python](https://github.com/bazelbuild/rules_python/).
./summerofcode/2018/naresh.md:37:[bazelbuild/rules_python](https://github.com/bazelbuild/rules_python/)).
./src/python/grpcio_tests/tests/bazel_namespace_package_hack.py:26:# Analysis in depth: https://github.com/bazelbuild/rules_python/issues/55
./src/python/grpcio_tests/build/lib/tests/bazel_namespace_package_hack.py:26:# Analysis in depth: https://github.com/bazelbuild/rules_python/issues/55
./bazel/grpc_python_deps.bzl:36:    if "io_bazel_rules_python" not in native.existing_rules():
./bazel/grpc_python_deps.bzl:38:            name = "io_bazel_rules_python",
./bazel/grpc_python_deps.bzl:39:            url = "https://github.com/bazelbuild/rules_python/releases/download/0.0.1/rules_python-0.0.1.tar.gz",
./bazel/grpc_python_deps.bzl:43:    if "rules_python" not in native.existing_rules():
./bazel/grpc_python_deps.bzl:45:            name = "rules_python",
./bazel/grpc_python_deps.bzl:46:            url = "https://github.com/bazelbuild/rules_python/archive/9d68f24659e8ce8b736590ba1e4418af06ec2552.zip",
./bazel/grpc_python_deps.bzl:48:            strip_prefix = "rules_python-9d68f24659e8ce8b736590ba1e4418af06ec2552",
./WORKSPACE:101:load("@io_bazel_rules_python//python:pip.bzl", "pip_import", "pip_repositories")

Feel free to remove it.

[jtattermusch]

FTR the second copy of "rules_python" was added here: https://github.com/grpc/grpc/pull/20097/files#diff-1921b9ac3138aad26761ba6b33391a45caf8e02e57d98cecafdb663980788676R51

[gnossen]

LGTM assuming tests pass.

[gnossen]

I think this is just an oversight. The second one doesn't even seem to be referenced anywhere:

rbellevi@rbell:~/Dev/grpc$ find . -type f -a -not -path './third_party*' -a -not -path '*venv*' -a -not -path '*virtual*' -a -not -path './git*' -exec grep -Hn rules_python {} \;
grep: ./tools/run_tests/python_utils/start_port_server.pyc: Permission denied
./summerofcode/2018/naresh.md:29:[bazelbuild/rules_python](https://github.com/bazelbuild/rules_python/).
./summerofcode/2018/naresh.md:37:[bazelbuild/rules_python](https://github.com/bazelbuild/rules_python/)).
./src/python/grpcio_tests/tests/bazel_namespace_package_hack.py:26:# Analysis in depth: https://github.com/bazelbuild/rules_python/issues/55
./src/python/grpcio_tests/build/lib/tests/bazel_namespace_package_hack.py:26:# Analysis in depth: https://github.com/bazelbuild/rules_python/issues/55
./bazel/grpc_python_deps.bzl:36:    if "io_bazel_rules_python" not in native.existing_rules():
./bazel/grpc_python_deps.bzl:38:            name = "io_bazel_rules_python",
./bazel/grpc_python_deps.bzl:39:            url = "https://github.com/bazelbuild/rules_python/releases/download/0.0.1/rules_python-0.0.1.tar.gz",
./bazel/grpc_python_deps.bzl:43:    if "rules_python" not in native.existing_rules():
./bazel/grpc_python_deps.bzl:45:            name = "rules_python",
./bazel/grpc_python_deps.bzl:46:            url = "https://github.com/bazelbuild/rules_python/archive/9d68f24659e8ce8b736590ba1e4418af06ec2552.zip",
./bazel/grpc_python_deps.bzl:48:            strip_prefix = "rules_python-9d68f24659e8ce8b736590ba1e4418af06ec2552",
./WORKSPACE:101:load("@io_bazel_rules_python//python:pip.bzl", "pip_import", "pip_repositories")

Feel free to remove it.

[jtattermusch]

Based on the test failures, it seems that something around selecting the right python version (2 vs 3) is not working with the new python rules, so this needs to be investigated before we can merge.

https://source.cloud.google.com/results/invocations/0bcc3c86-2d03-4bab-baf3-301a103c889f/log
https://source.cloud.google.com/results/invocations/a2f2b053-7e56-4522-b94b-e9c294593187/targets/%2F%2Ftest%2Fcpp%2Fcodegen:copy_compiler_test_mock_grpc_pb_h/log

[stale]

This issue/PR has been automatically marked as stale because it has not had any update (including commits, comments, labels, milestones, etc) for 30 days. It will be closed automatically if no further update occurs in 7 day. Thank you for your contributions!