ContextLocalSingleton Provider Class

[sonthonaxrk]

This is just a preliminary example of how I'd switch to using ContextVars. The advantage of ContextVars is that they actually work when using asyncio. I think it might be worth having a ContextLocalSingleton and a ThreadLocalSingleton. Most people will need a ContextLocalSingleton.

Things I need to do here. Please add anything I'm missing :)

• Add tests
• Fix the pipeline
• Add the backported contextvars library to the dependencies so we can support earlier Python 3 versions.
• Handle Python 2. I think it might make sense to tie the class into the 'async enabled' flag you have.

Thanks for all your work on this library.

[sonthonaxrk]

Build is red because of coveralls failing to upload the results.

coveralls run-test: commands[2] | coverage report --rcfile=./.coveragerc
Name                                      Stmts   Miss  Cover
-------------------------------------------------------------
src/dependency_injector/__init__.py           2      0   100%
src/dependency_injector/containers.pyx      343      9    97%
src/dependency_injector/errors.py             2      0   100%
src/dependency_injector/ext/__init__.py       0      0   100%
src/dependency_injector/ext/aiohttp.py       21      0   100%
src/dependency_injector/ext/flask.py         38      2    95%
src/dependency_injector/providers.pxd       173     21    88%
src/dependency_injector/providers.pyx      1731    106    94%
src/dependency_injector/resources.py         25      6    76%
src/dependency_injector/schema.py           147     20    86%
src/dependency_injector/wiring.py           518     26    95%
-------------------------------------------------------------
TOTAL                                      3000    190    94%

[rmk135]

This looks good. Thanks a lot for the contribution. I left some comments, appreciate if you could take a look. Also please target PR to the develop branch.

[sonthonaxrk]

@rmk135

I've made the amends and rebased onto dev.

[sonthonaxrk]

Fixed the pipeline.

[sonthonaxrk]

Hey @rmk135 are you still interested in merging this?

[rmk135]

Hey @rmk135 are you still interested in merging this?

Hey @sonthonaxrk , I do. Merging it now :)

[billcrook]

Just a heads up that there is no documentation of this provider in the main docs

[rmk135]

@billcrook , thanks for the heads up. It's still in my backlog, will prioritize it!