## 2021.9.0-rc (30 August 2021)

### Enhancements

1. Added commands to select and run a set of tests.

([#3652](https://github.com/Microsoft/vscode-python/issues/3652))

1. Fix for tests should be re-discovered after switching environment.

([#5347](https://github.com/Microsoft/vscode-python/issues/5347))

1. Remove the testing functionality from the status bar.

([#8405](https://github.com/Microsoft/vscode-python/issues/8405))

1. Automatically detect new test file in test explorer.

([#8675](https://github.com/Microsoft/vscode-python/issues/8675))

1. Search test names in test explorer.

([#8836](https://github.com/Microsoft/vscode-python/issues/8836))

1. Added a command for displaying the test explorer.

([#9026](https://github.com/Microsoft/vscode-python/issues/9026))

1. Make "run all tests" icon gray instead of green.

([#9402](https://github.com/Microsoft/vscode-python/issues/9402))

1. Use VS Code's test UI instead of code lenses above tests.

([#10898](https://github.com/Microsoft/vscode-python/issues/10898))

1. Added command to run last executed test.

([#11864](https://github.com/Microsoft/vscode-python/issues/11864))

1. Fix for PyTest discovery can fail but not give any clue as to what the problem is.

([#12043](https://github.com/Microsoft/vscode-python/issues/12043))

1. Add shortcut to run the current test (at cursor position).

([#12218](https://github.com/Microsoft/vscode-python/issues/12218))

1. Run all tests in a multi-root workspace without prompting.

([#13147](https://github.com/Microsoft/vscode-python/issues/13147))

1. Plug into VS Code's Test UI.

([#15750](https://github.com/Microsoft/vscode-python/issues/15750))

1. Show notification to join insiders after 5 mins.

([#16833](https://github.com/Microsoft/vscode-python/issues/16833))

1. Update Simplified Chinese translation. (thanks [FiftysixTimes7](https://github.com/FiftysixTimes7))

([#16916](https://github.com/Microsoft/vscode-python/issues/16916))

1. Added Debug file button to editor run menu.

([#16924](https://github.com/Microsoft/vscode-python/issues/16924))

1. Cache last selection for debug configuration when debugging without launch.json.

([#16934](https://github.com/Microsoft/vscode-python/issues/16934))

1. Improve display of default interpreter and suggested interpreter in the interpreter selection quick pick.

([#16971](https://github.com/Microsoft/vscode-python/issues/16971))

1. Improve discovery component API.

([#17005](https://github.com/Microsoft/vscode-python/issues/17005))

1. Add a notification about Python 2.7 support, displayed whenever a tool is used or whenever debugging is started.

([#17009](https://github.com/Microsoft/vscode-python/issues/17009))

1. Add caching debug configuration behind experiment.

([#17025](https://github.com/Microsoft/vscode-python/issues/17025))

1. Do not query to get all interpreters where it's not needed in the extension code.

([#17030](https://github.com/Microsoft/vscode-python/issues/17030))

1. Add a warning prompt for the Microsoft Python Language Server deprecation.

([#17056](https://github.com/Microsoft/vscode-python/issues/17056))

1. Update to latest jedi-language-server.

([#17072](https://github.com/Microsoft/vscode-python/issues/17072))

### Fixes

1. Fix for test code lenses do not disappear even after disabling the unit tests.

([#1654](https://github.com/Microsoft/vscode-python/issues/1654))

1. Fix for code lens for a test class run under unittest doesn't show overall results for methods.

([#2382](https://github.com/Microsoft/vscode-python/issues/2382))

1. Fix for test code lens do not appear on initial activation of testing support.

([#2644](https://github.com/Microsoft/vscode-python/issues/2644))

1. Fix for "No tests ran, please check the configuration settings for the tests".

([#2660](https://github.com/Microsoft/vscode-python/issues/2660))

1. Fix for code lenses disappear on save, then re-appear when tabbing on/off the file.

([#2790](https://github.com/Microsoft/vscode-python/issues/2790))

1. Fix for code lenses for tests not showing up when test is defined on line 1.

([#3062](https://github.com/Microsoft/vscode-python/issues/3062))

1. Fix for command 'python.runtests' not found.

([#3591](https://github.com/Microsoft/vscode-python/issues/3591))

1. Fix for navigation to code doesn't work with parameterized tests.

([#4469](https://github.com/Microsoft/vscode-python/issues/4469))

1. Fix for tests are not being discovered at first in multiroot workspace.

([#4848](https://github.com/Microsoft/vscode-python/issues/4848))

1. Fix for tests not found after upgrade.

([#5417](https://github.com/Microsoft/vscode-python/issues/5417))

1. Fix for failed icon of the first failed test doesn't changed to running icon when using unittest framework.

([#5791](https://github.com/Microsoft/vscode-python/issues/5791))

1. Fix for failure details in unittest discovery are not always logged.

([#5889](https://github.com/Microsoft/vscode-python/issues/5889))

1. Fix for test results not updated if test is run via codelens.

([#6787](https://github.com/Microsoft/vscode-python/issues/6787))

1. Fix for "Run Current Test File" is not running tests, just discovering them.

([#7150](https://github.com/Microsoft/vscode-python/issues/7150))

1. Fix for testing code lenses don't show for remote sessions to a directory symlink.

([#7443](https://github.com/Microsoft/vscode-python/issues/7443))

1. Fix for discover test per folder icon is missing in multi-root workspace after upgrade.

([#7870](https://github.com/Microsoft/vscode-python/issues/7870))

1. Fix for clicking on a test in the Test Explorer does not navigate to the correct test.

([#8448](https://github.com/Microsoft/vscode-python/issues/8448))

1. Fix for if multiple tests have the same name, only one is run.

([#8761](https://github.com/Microsoft/vscode-python/issues/8761))

1. Fix for test failure is reported as a compile error.

([#9640](https://github.com/Microsoft/vscode-python/issues/9640))

1. Fix for discovering tests immediately after interpreter change often fails.

([#9854](https://github.com/Microsoft/vscode-python/issues/9854))

1. Fix for unittest module invoking wrong TestCase.

([#10972](https://github.com/Microsoft/vscode-python/issues/10972))

1. Fix for unable to navigate to test function.

([#11866](https://github.com/Microsoft/vscode-python/issues/11866))

1. Fix for running test fails trying to access non-existing file.

([#12403](https://github.com/Microsoft/vscode-python/issues/12403))

1. Fix for code lenses don't work after opening files from different projects in workspace.

([#12995](https://github.com/Microsoft/vscode-python/issues/12995))

1. Fix for the pytest icons keep spinning when run Test Method.

([#13285](https://github.com/Microsoft/vscode-python/issues/13285))

1. Test for any functionality related to testing doesn't work if language server is set to none.

([#13713](https://github.com/Microsoft/vscode-python/issues/13713))

1. Fix for cannot configure PyTest from UI.

([#13916](https://github.com/Microsoft/vscode-python/issues/13916))

1. Fix for test icons not updating when using pytest.

([#15260](https://github.com/Microsoft/vscode-python/issues/15260))

1. Fix for debugging tests is returning errors due to "unsupported status".

([#15736](https://github.com/Microsoft/vscode-python/issues/15736))

1. Removes `"request": "test"` as a config option. This can now be done with `"purpose": ["debug-test"]`.

([#15790](https://github.com/Microsoft/vscode-python/issues/15790))

1. Fix for "There was an error in running the tests" when stopping debugger.

([#16475](https://github.com/Microsoft/vscode-python/issues/16475))

1. Use the vscode API appropriately to find out what terminal is being used.

([#16577](https://github.com/Microsoft/vscode-python/issues/16577))

1. Fix unittest discovery. (thanks [JulianEdwards](https://github.com/bigjools))

([#16593](https://github.com/Microsoft/vscode-python/issues/16593))

1. Fix run `installPythonLibs` error in windows.

([#16844](https://github.com/Microsoft/vscode-python/issues/16844))

1. Fix for test welcome screen flashes on refresh.

([#16855](https://github.com/Microsoft/vscode-python/issues/16855))

1. Show re-run failed test button only when there are failed tests.

([#16856](https://github.com/Microsoft/vscode-python/issues/16856))

1. Triggering test refresh shows progress indicator.

([#16891](https://github.com/Microsoft/vscode-python/issues/16891))

1. Fix environment sorting for the `Python: Select Interpreter` command.

(thanks [Marc Mueller](https://github.com/cdce8p))

([#16893](https://github.com/Microsoft/vscode-python/issues/16893))

1. Fix for unittest not getting discovered in all cases.

([#16902](https://github.com/Microsoft/vscode-python/issues/16902))

1. Don't show full path in the description for each test node.

([#16927](https://github.com/Microsoft/vscode-python/issues/16927))

1. Fix for no notification shown if test framework is not configured and run all tests is called.

([#16941](https://github.com/Microsoft/vscode-python/issues/16941))

1. In experiments service don't always `await` on `initialfetch` which can be slow depending on the network.

([#16959](https://github.com/Microsoft/vscode-python/issues/16959))

1. Ensure 2.7 unittest still work with new test support.

([#16962](https://github.com/Microsoft/vscode-python/issues/16962))

1. Fix issue with parsing test run ids for reporting test status.

([#16963](https://github.com/Microsoft/vscode-python/issues/16963))

1. Fix cell magics, line magics, and shell escaping in jupyter notebooks to not show error diagnostics.

([#17058](https://github.com/Microsoft/vscode-python/issues/17058))

1. Fix for testing ui update issue when `pytest` parameter has '/'.

([#17079](https://github.com/Microsoft/vscode-python/issues/17079))

### Code Health

1. Remove nose test support.

([#16371](https://github.com/Microsoft/vscode-python/issues/16371))

1. Remove custom start page experience in favor of VSCode's built-in walkthrough support.

([#16453](https://github.com/Microsoft/vscode-python/issues/16453))

1. Run auto-selection only once, and return the cached value for subsequent calls.

([#16735](https://github.com/Microsoft/vscode-python/issues/16735))

1. Add telemetry for when an interpreter gets auto-selected.

([#16764](https://github.com/Microsoft/vscode-python/issues/16764))

1. Remove pre-existing environment sorting algorithm and old rule-based auto-selection logic.

([#16935](https://github.com/Microsoft/vscode-python/issues/16935))

1. Add API to run code after extension activation.

([#16983](https://github.com/Microsoft/vscode-python/issues/16983))

1. Add telemetry sending time it took to load data from experiment service.

([#17011](https://github.com/Microsoft/vscode-python/issues/17011))

1. Improve reliability of virtual env tests and disable poetry watcher tests.

([#17088](https://github.com/Microsoft/vscode-python/issues/17088))

### Thanks

Thanks to the following projects which we fully rely on to provide some of

our features:

- [debugpy](https://pypi.org/project/debugpy/)

- [isort](https://pypi.org/project/isort/)

- [jedi](https://pypi.org/project/jedi/)

and [parso](https://pypi.org/project/parso/)

- [jedi-language-server](https://pypi.org/project/jedi-language-server/)

- [Microsoft Python Language Server](https://github.com/microsoft/python-language-server)

- [Pylance](https://github.com/microsoft/pylance-release)

- [exuberant ctags](http://ctags.sourceforge.net/) (user-installed)

- [rope](https://pypi.org/project/rope/) (user-installed)

Also thanks to the various projects we provide integrations with which help

make this extension useful:

- Debugging support:

[Django](https://pypi.org/project/Django/),

[Flask](https://pypi.org/project/Flask/),

[gevent](https://pypi.org/project/gevent/),

[Jinja](https://pypi.org/project/Jinja/),

[Pyramid](https://pypi.org/project/pyramid/),

[PySpark](https://pypi.org/project/pyspark/),

[Scrapy](https://pypi.org/project/Scrapy/),

[Watson](https://pypi.org/project/Watson/)

- Formatting:

[autopep8](https://pypi.org/project/autopep8/),

[black](https://pypi.org/project/black/),

[yapf](https://pypi.org/project/yapf/)

- Interpreter support:

[conda](https://conda.io/),

[direnv](https://direnv.net/),

[pipenv](https://pypi.org/project/pipenv/),

[poetry](https://pypi.org/project/poetry/),

[pyenv](https://github.com/pyenv/pyenv),

[venv](https://docs.python.org/3/library/venv.html#module-venv),

[virtualenv](https://pypi.org/project/virtualenv/)

- Linting:

[bandit](https://pypi.org/project/bandit/),

[flake8](https://pypi.org/project/flake8/),

[mypy](https://pypi.org/project/mypy/),

[prospector](https://pypi.org/project/prospector/),

[pylint](https://pypi.org/project/pylint/),

[pydocstyle](https://pypi.org/project/pydocstyle/),

[pylama](https://pypi.org/project/pylama/)

- Testing:

[pytest](https://pypi.org/project/pytest/),

[unittest](https://docs.python.org/3/library/unittest.html#module-unittest)

And finally thanks to the [Python](https://www.python.org/) development team and

community for creating a fantastic programming language and community to be a

part of!