[BUG] fail to import gbench into compare.py with bazel and python3.12

[dhmemi]

Describe the bug Execute tools/compare.py with bazel and python3.12 will get an error:

$ bazelisk run @com_google_benchmark//tools:compare benchmarks ./baseline.json ./benchmark.json
Traceback (most recent call last):
  File "C:\Users\admin\AppData\Local\Temp\Bazel.runfiles_2c5wqe9z\runfiles\com_google_benchmark\tools\compare.py", line 13, in <module>
    import gbench
ModuleNotFoundError: No module named 'gbench'

System Which OS, compiler, and compiler version are you using:

• OS:
• Compiler and version:

To reproduce To reproduce this bug:

1. Import rules_python and register python3.12:

http_archive( name = "rules_python", sha256 = "e85ae30de33625a63eca7fc40a94fea845e641888e52f32b6beea91e8b1b2793", strip_prefix = "rules_python-0.27.1", url = "https://github.com/bazelbuild/rules_python/releases/download/0.27.1/rules_python-0.27.1.tar.gz", )

load("@rules_python//python:repositories.bzl", "py_repositories", "python_register_toolchains")

py_repositories()

python_register_toolchains( name = "python3_12", ignore_root_user_error = True, python_version = "3.12.0", )

load("@python3_12//:defs.bzl", "interpreter") load("@rules_python//python:pip.bzl", "pip_parse") pip_parse( name = "tools_pip_deps", python_interpreter_target = interpreter, requirements_lock = "//:requirements-build.txt", )

load("@tools_pip_deps//:requirements.bzl", install_deps_other = "install_deps")

Call it to define repos for your requirements.

install_deps_other()

2. Import google benchmark in the WORKSPACE file:
```starlark
http_archive(
    name = "com_google_benchmark",
    sha256 = "0094b77c01e9973876f1831f76cbae43fdaf09b424e467dc4171abaa6884e455",
    strip_prefix = "benchmark-1.8.2",
    url = "https://github.com/google/benchmark/archive/refs/tags/v1.8.2.zip",
)

3. run command: bazelisk run @com_google_benchmark//tools:compare benchmarks ./baseline.json ./benchmark.json

Additional context One of the way to fix that may be add imports field to //tools/compare target：

py_binary(
    name = "compare",
    srcs = ["compare.py"],
    python_version = "PY3",
    imports = ["."],
    deps = [
        ":gbench",
    ],
)