This uses the dockcross manylinux docker image to enable crosscompiling aarch64 python wheels. The wheels built for aarch64 linux are excluded from the release for now, pending testing (pending, in PR#8392).
The setuptools package was added to allow definition of namespaces using
the now outdated (and discouraged from use) pkg_resources-style.
The code here, for a long while now, uses a try/except (`ImportError`)
protection around the setuptools code, and falls back to the more
encoraged pkgutil-style.
Removing this library won't affect any current workflow, and in the case
of setuptools not found, it'll actually use a more modern (and
encouraged) flow.
This change updates the README.md to describe the order of resolution
between `options['generate_py_protobufs']`, `--protoc`, and the `PROTOC`
env var.
Since the `setup.py` script is not the main way to find docs, this change
deletes the parts of the docstring that are redundant with `README.md`.
Currently, the logic in `generate_py_protobufs` cannot find a custom `protoc` (even though it's supposed to be possible). Fixes:
1. Mark the `--protoc` flag as accepting an argument.
2. If the `--protoc` flag was not passed, try finding `PROTOC` in the environment.
3. (Existing behavior) Otherwise, fall back to `spawn.find_executable`.
Hat tip to @bobhancock for uncovering the problem(s).
Using non-versioned scripts for `build_file` means every Python version is
tested (under Tox), and this is multiplied by each Python version running Tox.
For example, when the `python38` config is used to run Tox, the
Tox layer runs on Python 3.8. This then tests all of the Python versions
individually, including, for example, python27 tests.
This change fixes the `build_file` paths to point to the same-pathed build
script. For example, `kokoro/linux/python27/presubmit.cfg` now uses
`kokoro/linux/python27/build.sh`.
Some additional fixes:
* Use `python -m tox` in tests.sh instead of just `tox`. This helps non-site
installations of tox, where the `tox` script may not be on `$PATH`.
* Ensure tox (and other Python build-related packages) are available in
Python testing images. (New images have been pushed.)
* Disable `--warnings_as_errors` due to deprecated function.
* Remove apt lists per [Docker best practices][1].
[1]: https://docs.docker.com/develop/develop-images/dockerfile_best-practices/
Bo Yang
Adam Cozzette
Joshua Haberman
Yuriy Chernyshov
Roy Williams
Alexander Reynolds
Jan Tattermusch
Alexander Shadchin
deannagarcia
Thomas BACCELLI
Bu Sun Kim
Aurélien Grenotton
Misha Seltzer
David L. Jones