## py_runtime_pair 
py_runtime_pair(name, py2_runtime, py3_runtime)
A toolchain rule for Python. This wraps up to two Python runtimes, one for Python 2 and one for Python 3. The rule consuming this toolchain will choose which runtime is appropriate. Either runtime may be omitted, in which case the resulting toolchain will be unusable for building Python code using that version. Usually the wrapped runtimes are declared using the `py_runtime` rule, but any rule returning a `PyRuntimeInfo` provider may be used. This rule returns a `platform_common.ToolchainInfo` provider with the following schema: ```python platform_common.ToolchainInfo( py2_runtime = , py3_runtime = , ) ``` Example usage: ```python # In your BUILD file... load("@rules_python//python:defs.bzl", "py_runtime_pair") py_runtime( name = "my_py2_runtime", interpreter_path = "/system/python2", python_version = "PY2", ) py_runtime( name = "my_py3_runtime", interpreter_path = "/system/python3", python_version = "PY3", ) py_runtime_pair( name = "my_py_runtime_pair", py2_runtime = ":my_py2_runtime", py3_runtime = ":my_py3_runtime", ) toolchain( name = "my_toolchain", target_compatible_with = <...>, toolchain = ":my_py_runtime_pair", toolchain_type = "@rules_python//python:toolchain_type", ) ``` ```python # In your WORKSPACE... register_toolchains("//my_pkg:my_toolchain") ``` ### Attributes
name Name; required
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A unique name for this target.

py2_runtime Label; optional

The runtime to use for Python 2 targets. Must have `python_version` set to `PY2`.

py3_runtime Label; optional

The runtime to use for Python 3 targets. Must have `python_version` set to `PY3`.

## py_binary 
py_binary(attrs)
See the Bazel core [py_binary](https://docs.bazel.build/versions/master/be/python.html#py_binary) documentation. ### Parameters
attrs optional.

Rule attributes

## py_library 
py_library(attrs)
See the Bazel core [py_library](https://docs.bazel.build/versions/master/be/python.html#py_library) documentation. ### Parameters
attrs optional.

Rule attributes

## py_runtime 
py_runtime(attrs)
See the Bazel core [py_runtime](https://docs.bazel.build/versions/master/be/python.html#py_runtime) documentation. ### Parameters
attrs optional.

Rule attributes

## py_test 
py_test(attrs)
See the Bazel core [py_test](https://docs.bazel.build/versions/master/be/python.html#py_test) documentation. ### Parameters
attrs optional.

Rule attributes