Get matplotlib working with upstream Python
This patch adds support for using matplotlib plus its Gtk backend with
`--config=k8_upstream_python`. Unfortunately, the Tk backend doesn't
work because of how Python is packaged. See the following issue for
more information:
https://github.com/matplotlib/matplotlib/issues/23074
Separately, we need to patch pygobject and matplotlib for various
hermeticity reasons. To accomplish this, I've added patching support
for wheels downloaded via rules_python. I should have set it up to use
annotations (the same mechanism we use for injecting deps), but it was
a little cumbersome. Annotations are not set up for using in arguments
to repository rules. I instead opted for a separate JSON file. You can
find it at `tools/python/patches.json`.
You can try the two new example programs:
$ bazel run --config=k8_upstream_python //build_tests:matplotlib_example
$ bazel run --config=k8_upstream_python //build_tests:pygobject_example
Signed-off-by: Philipp Schrader <philipp.schrader@gmail.com>
Change-Id: I3c4e8648a8012aa23dedd53610e82d590d1c409d
diff --git a/tools/python/package_annotations.bzl b/tools/python/package_annotations.bzl
new file mode 100644
index 0000000..b359d72
--- /dev/null
+++ b/tools/python/package_annotations.bzl
@@ -0,0 +1,12 @@
+load("@rules_python//python:pip.bzl", "package_annotation")
+
+ANNOTATIONS = {
+ "matplotlib": package_annotation(
+ data = ["@gtk_runtime//:gtk_runtime"],
+ deps = ["@bazel_tools//tools/python/runfiles"],
+ ),
+ "pygobject": package_annotation(
+ data = ["@gtk_runtime//:gtk_runtime"],
+ deps = ["@bazel_tools//tools/python/runfiles"],
+ ),
+}