move pip_import rule to legacy_pip_import

BREAKING CHANGE:
The load statement for "pip_import" and "pip_repositories" has moved to //python/legacy_pip_import:pip.bzl
Use of the old load site will print a failure message indicating this.

Author: Alex Eagle

.bazelrc

@@ -3,7 +3,7 @@
 # This lets us glob() up all the files inside the examples to make them inputs to tests
 # (Note, we cannot use `common --deleted_packages` because the bazel version command doesn't support it)
 # To update these lines, run tools/bazel_integration_test/update_deleted_packages.sh
-build --deleted_packages=examples/pip/boto,examples/pip/extras,examples/pip/helloworld,examples/pip_install
-query --deleted_packages=examples/pip/boto,examples/pip/extras,examples/pip/helloworld,examples/pip_install
+build --deleted_packages=examples/legacy_pip_import/boto,examples/legacy_pip_import/extras,examples/legacy_pip_import/helloworld,examples/pip_install
+query --deleted_packages=examples/legacy_pip_import/boto,examples/legacy_pip_import/extras,examples/legacy_pip_import/helloworld,examples/pip_install
 
 test --test_output=errors

examples/BUILD

@@ -18,7 +18,7 @@ package(default_visibility = ["//visibility:public"])
 licenses(["notice"])  # Apache 2.0
 
 bazel_integration_test(
-    name = "pip_example",
+    name = "legacy_pip_import_example",
     timeout = "long",
 )
 

examples/pip/.bazelrc examples/legacy_pip_import/.bazelrcexamples/pip/.bazelrc renamed to examples/legacy_pip_import/.bazelrc

@@ -1,4 +1,6 @@
-# pip example
+# LEGACY pip example
+
+This feature has been replaced by the pip_install rule, please see the latest release notes to migrate.
 
 This shows how you can point Bazel at your requirements.txt file to get dependencies automatically installed.
 

examples/pip/README.md examples/legacy_pip_import/README.mdexamples/pip/README.md renamed to examples/legacy_pip_import/README.md

@@ -8,7 +8,7 @@ http_archive(
     sha256 = "e46612e9bb0dae8745de6a0643be69e8665a03f63163ac6610c210e80d14c3e4",
 )
 
-load("@rules_python//python:pip.bzl", "pip_import", "pip_repositories")
+load("@rules_python//python/legacy_pip_import:pip.bzl", "pip_import", "pip_repositories")
 
 pip_repositories()