ImportError when trying to import from previously vendored auxlib

[jezdez]

Actual Behavior

conda-build imports from a "vendored" version of the auxlib in conda, which was recently inlined since it diverged significantly from the upstream project. conda/conda#11025

Expected Behavior

There shouldn't be an ImportError when trying to import from auxlib.

Code in question:

conda-build/conda_build/environ.py

Line 191 in a3af116

from conda._vendor.auxlib.packaging import _get_version_from_git_tag

[esc]

In case it helps, here is an example stacktrace:

Traceback (most recent call last):
File "/opt/conda/bin/conda-build", line 11, in <module>
sys.exit(main())
File "/opt/conda/lib/python3.8/site-packages/conda_build/cli/main_build.py", line 474, in main
execute(sys.argv[1:])
File "/opt/conda/lib/python3.8/site-packages/conda_build/cli/main_build.py", line 463, in execute
outputs = api.build(args.recipe, post=args.post, test_run_post=args.test_run_post,
File "/opt/conda/lib/python3.8/site-packages/conda_build/api.py", line 186, in build
return build_tree(
File "/opt/conda/lib/python3.8/site-packages/conda_build/build.py", line 2987, in build_tree
metadata_tuples = render_recipe(recipe, config=cfg, variants=variants,
File "/opt/conda/lib/python3.8/site-packages/conda_build/render.py", line 832, in render_recipe
rendered_metadata = distribute_variants(m, variants,
File "/opt/conda/lib/python3.8/site-packages/conda_build/render.py", line 728, in distribute_variants
if mv.needs_source_for_render and mv.variant_in_source:
File "/opt/conda/lib/python3.8/site-packages/conda_build/metadata.py", line 1823, in variant_in_source
self.parse_again(permit_undefined_jinja=True, allow_no_other_outputs=True,
File "/opt/conda/lib/python3.8/site-packages/conda_build/metadata.py", line 961, in parse_again
self.meta = parse(self._get_contents(permit_undefined_jinja,
File "/opt/conda/lib/python3.8/site-packages/conda_build/metadata.py", line 1526, in _get_contents
env.globals.update(environ.get_dict(m=self, skip_build_id=skip_build_id))
File "/opt/conda/lib/python3.8/site-packages/conda_build/environ.py", line 282, in get_dict
d.update(meta_vars(m, skip_build_id=skip_build_id))
File "/opt/conda/lib/python3.8/site-packages/conda_build/environ.py", line 486, in meta_vars
d.update(get_git_info(git_exe, git_dir, meta.config.debug))
File "/opt/conda/lib/python3.8/site-packages/conda_build/environ.py", line 193, in get_git_info
from conda._vendor.auxlib.packaging import _get_version_from_git_tag
ModuleNotFoundError: No module named 'conda._vendor.auxlib'