# Summary
This allows users to do things like:
```py
# ruff: noqa: F401
```
...to ignore all `F401` directives in a file. It's equivalent to `per-file-ignores`, but allows users to specify the behavior inline.
Note that Flake8 does _not_ support this, so we _don't_ respect `# flake8: noqa: F401`. (Flake8 treats that as equivalent to `# flake8: noqa`, so ignores _all_ errors in the file. I think all of [these usages](https://cs.github.com/?scopeName=All+repos&scope=&q=%22%23+flake8%3A+noqa%3A+%22) are probably mistakes!)
A couple notes on the details:
- If a user has `# ruff: noqa: F401` in the file, but also `# noqa: F401` on a line that would legitimately trigger an `F401` violation, we _do_ mark that as "unused" for `RUF100` purposes. This may be the wrong choice. The `noqa` is legitimately unused, but it's also not "wrong". It's just redundant.
- If a user has `# ruff: noqa: F401`, and runs `--add-noqa`, we _won't_ add `# noqa: F401` to any lines (which seems like the obvious right choice to me).
Closes#1054 (which has some extra pieces that I'll carve out into a separate issue).
Closes#2446.
- Implement N999 (following flake8-module-naming) in pep8_naming
- Refactor pep8_naming: split rules.rs into file per rule
- Documentation for majority of the violations
Closes https://github.com/charliermarsh/ruff/issues/2734
This rule guards against `asyncio.create_task` usages of the form:
```py
asyncio.create_task(coordinator.ws_connect()) # Error
```
...which can lead to unexpected bugs due to the lack of a strong reference to the created task. See Will McGugan's blog post for reference: https://textual.textualize.io/blog/2023/02/11/the-heisenbug-lurking-in-your-async-code/.
Note that we can't detect issues like:
```py
def f():
# Stored as `task`, but never used...
task = asyncio.create_task(coordinator.ws_connect())
```
So that would be a false negative. But this catches the common case of failing to assign the task in any way.
Closes#2809.
For example:
$ ruff check --select=EM<Tab>
EM -- flake8-errmsg
EM10 EM1 --
EM101 -- raw-string-in-exception
EM102 -- f-string-in-exception
EM103 -- dot-format-in-exception
(You will need to enable autocompletion as described
in the Autocompletion section in the README.)
Fixes#2808.
(The --help help change in the README is due to a clap bug,
for which I already submitted a fix:
https://github.com/clap-rs/clap/pull/4710.)
