examples/bzlmod/other_module/MODULE.bazel

module(
    name = "other_module",
)

# This module is using the same version of rules_python
# that the parent module uses.
bazel_dep(name = "rules_python", version = "")

# It is not best practice to use a python.toolchian in
# a submodule.  This code only exists to test that
# we support doing this. This code is only for rules_python
# testing purposes.
PYTHON_NAME_39 = "python_39"

PYTHON_39_TOOLCHAINS = PYTHON_NAME_39 + "_toolchains"

PYTHON_NAME_311 = "python_311"

PYTHON_311_TOOLCHAINS = PYTHON_NAME_311 + "_toolchains"

python = use_extension("@rules_python//python/extensions:python.bzl", "python")
python.toolchain(
    # This name is used in the various use_repo statements
    # below, and in the local extension that is in this
    # example.
    name = PYTHON_NAME_39,
    configure_coverage_tool = True,
    python_version = "3.9",
)
python.toolchain(
    # This name is used in the various use_repo statements
    # below, and in the local extension that is in this
    # example.
    name = PYTHON_NAME_311,
    configure_coverage_tool = True,
    # In a submodule this is ignored
    is_default = True,
    python_version = "3.11",
)

# created by the above python.toolchain calls.
use_repo(
    python,
    PYTHON_NAME_39,
    PYTHON_39_TOOLCHAINS,
    PYTHON_NAME_311,
    PYTHON_311_TOOLCHAINS,
)

# This call registers the Python toolchains.
# Note: there is work under way to move this code to within
# rules_python, and the user won't have to make this call,
# unless they are registering custom toolchains.
register_toolchains(
    "@{}//:all".format(PYTHON_39_TOOLCHAINS),
    "@{}//:all".format(PYTHON_311_TOOLCHAINS),
)