In preparation for upgrading the Tensorflow Python package dependency, upgrade
the C++ standard used when compiling //python/tests:cc_deps_link_test from
C++14 to C++17. cc_deps_link_test tests linking against the Tensorflow Python
package's extension module.
Bug=#1966.
Extend the Python repository_rule used to create external repositories, adding targets for C-language binary libraries shipped inside Python packages; e.g., that shipped in package tensorflow-gpu.
These targets are to be used as dependencies by C-language targets.
Note: when debugging the build, it can be helpful to examine the repository directory and BUILD file this repository_rule generates in the bazel cache.
Begin using a python/ directory at the root of the project for code that is specific to Python.
Upgrade to the latest version of rules_python first. Note that the unit test to keep requirements.in and requirements.txt is disabled (specifically with
ec6bdc5d4443285d28a44076f06c203d9582e4a1)
Add a unit test for this feature.
BUG=see description
Ryan Kuester