pipstar regression: Labels duplicated in whl_library_targets_from_requires

[thirtyseven]

🐞 bug report

Affected Rule

The issue is caused by the rule: pip.parse

Is this a regression?

Yes, the previous version in which this bug was not present was: 1.7.0

Description

Some pip packages fail to build in 1.8.0-rc3 with errors like:

ERROR: /private/var/tmp/_bazel_tkaplan/2ee08b28e31e216c71c3665814b9e6fa/external/rules_python++pip+py3deps_310_ray_cp310_cp310_macosx_11_0_arm64_6f221b14/BUILD.bazel:6:34: in deps attribute of py_library rule @@rules_python++pip+py3deps_310_ray_cp310_cp310_macosx_11_0_arm64_6f221b14//:pkg: Label '@@rules_python++pip+py3deps//grpcio:pkg' is duplicated. Since this rule was created by the macro 'whl_library_targets_from_requires', the error might have been caused by the macro implementation
ERROR: /private/var/tmp/_bazel_tkaplan/2ee08b28e31e216c71c3665814b9e6fa/external/rules_python++pip+py3deps_310_ray_cp310_cp310_macosx_11_0_arm64_6f221b14/BUILD.bazel:6:34: Analysis of target '@@rules_python++pip+py3deps_310_ray_cp310_cp310_macosx_11_0_arm64_6f221b14//:pkg' (config: 854dc54) failed

🔬 Minimal Reproduction

MODULE.bazel:

bazel_dep(name = "rules_python", version = "1.8.0-rc3")

python = use_extension("@rules_python//python/extensions:python.bzl", "python")
python.toolchain(
    python_version = "3.10",
)

pip = use_extension("@rules_python//python/extensions:pip.bzl", "pip")
pip.parse(
    hub_name = "pypi",
    python_version = "3.10",
    requirements_by_platform = {
        "//:requirements_linux.txt": "linux_*",
        "//:requirements_mac.txt": "osx_*",
    },
)
use_repo(pip, "pypi")

uv = use_extension(
    "@rules_python//python/uv:uv.bzl",
    "uv",
    dev_dependency = True,
)

BUILD.bazel:

load("@rules_python//python/uv:lock.bzl", "lock")

DEFAULT_UV_ARGS = [
    "--index-strategy=unsafe-best-match",
]

# Generate lock files for default Python version
lock(
    name = "requirements_mac",
    srcs = [":requirements.in"],
    out = "requirements_mac.txt",
    args = DEFAULT_UV_ARGS + ["--python-platform=macos"],
)

lock(
    name = "requirements_linux",
    srcs = [":requirements.in"],
    out = "requirements_linux.txt",
    args = DEFAULT_UV_ARGS + ["--python-platform=linux"],
)

requirements.in:

ray[client,data,serve,train]==2.44.1

Run:

bazel run :requirements_mac.update
bazel run :requirements_linux.update
bazel build @pypi//...

🔥 Exception or Error

bazel build @pypi//...     
ERROR: /private/var/tmp/_bazel_tkaplan/4c0c47e0a98a460290f6962870658619/external/rules_python++pip+pypi_310_ray/BUILD.bazel:6:34: in data attribute of filegroup rule @@rules_python++pip+pypi_310_ray//:whl: Label '@@rules_python++pip+pypi//grpcio:whl' is duplicated. Since this rule was created by the macro 'whl_library_targets_from_requires', the error might have been caused by the macro implementation
ERROR: /private/var/tmp/_bazel_tkaplan/4c0c47e0a98a460290f6962870658619/external/rules_python++pip+pypi_310_ray/BUILD.bazel:6:34: Analysis of target '@@rules_python++pip+pypi_310_ray//:whl' (config: 7f8856b) failed
Use --verbose_failures to see the command lines of failed build steps.
ERROR: Analysis of target '@@rules_python++pip+pypi//ray:whl' failed; build aborted: Analysis failed
INFO: Elapsed time: 9.578s, Critical Path: 0.01s
INFO: 1 process: 1 internal.
ERROR: Build did NOT complete successfully

🌍 Your Environment

Operating System:

  
Mac OS 15.7.3
  

Output of bazel version:

  
8.5.1
  

Rules_python version:

  
1.8.0-rc3
  

Anything else relevant?
The error does not occur with --repo_env=RULES_PYTHON_ENABLE_PIPSTAR=0