build(deps): bump structlog from 21.1.0 to 21.4.0 in /tools

[dependabot]

Bumps structlog from 21.1.0 to 21.4.0.

Release notes

Sourced from structlog's releases.

21.4.0

This release is mostly about a regression when importing using a Python interpreter running with the PYTHONOPTIMIZE=2 environment variable set, or as python -OO. The one new feature is kinda neat too, though!

Changes:

• Fixed import when running in optimized mode (PYTHONOPTIMIZE=2 or python -OO). #373
• Added the structlog.threadlocal.bound_threadlocal and structlog.contextvars.bound_contextvars decorator/context managers to temporarily bind key/value pairs to a thread-local and context-local context. #371

21.3.0

The main reason for this comparatively timely release is that aiohttp 3.8's new behavior of starting new loops within aiohttp.web.run_app() led to breakage in apps that use structlog.stdlib.AsyncBoundLogger.

The one big new feature though is the support for much more powerful processor chains within structlog.stdlib.ProcessorFormatter. This took me way too long to get right, but I'm excited to share it with you.

This is also the first release without a setup.py. Invoking it was never tested and never supported, so now it's gone. Please use standard packaging tools like PyPA's build or flit directly if you want to package structlog yourself.

Backward-incompatible changes:

• structlog switched its packaging to flit. Users shouldn't notice a difference, but (re-)packagers might.

Deprecations:

none

Changes:

• structlog.dev.ConsoleRenderer now has sort_keys boolean parameter that allows to disable the sorting of keys on output. #358

• structlog.processors.TimeStamper now works well with FreezeGun even when it gets applied before the loggers are configured. #364

• structlog.stdlib.AsyncBoundLogger now determines the running loop when logging, not on instantiation. That has a minor performance impact, but makes it more robust when loops change (e.g. aiohttp.web.run_app()), or you want to use sync_bl before a loop has started.

• structlog.stdlib.ProcessorFormatter now has a processors argument that allows to define a processor chain to run over all log entries.

  Before running the chain, two additional keys are added to the event dictionary: _record and _from_structlog. With them it's possible to extract information from logging.LogRecords and differentiate between structlog and logging log entries while processing them.

  The old processor (singular) parameter is now deprecated, but no plans exist to remove it. #365

21.2.0

Highlights

• Support for for beautiful (and helpful!) exceptions by integrating ConsoleRenderer with rich or better-exceptions.
• Helpers to access thread-local and context-local context.
• Deeper contextvars support.

---

Backward-incompatible changes:

• To implement pretty exceptions (see Changes below), structlog.dev.ConsoleRenderer now formats exceptions itself.

... (truncated)

Changelog

Sourced from structlog's changelog.

21.4.0 (2021-11-25)

Backward-incompatible changes: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

none

Deprecations: ^^^^^^^^^^^^^

none

Changes: ^^^^^^^^

• Fixed import when running in optimized mode (PYTHONOPTIMIZE=2 or python -OO). [#373](https://github.com/hynek/structlog/issues/373) <https://github.com/hynek/structlog/pull/373>_
• Added the structlog.threadlocal.bound_threadlocal and structlog.contextvars.bound_contextvars decorator/context managers to temporarily bind key/value pairs to a thread-local and context-local context. [#371](https://github.com/hynek/structlog/issues/371) <https://github.com/hynek/structlog/pull/371>_

---

21.3.0 (2021-11-20)

Backward-incompatible changes: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

• structlog switched its packaging to flit <https://flit.readthedocs.io/>_. Users shouldn't notice a difference, but (re-)packagers might.

Deprecations: ^^^^^^^^^^^^^

none

Changes: ^^^^^^^^

• structlog.dev.ConsoleRenderer now has sort_keys boolean parameter that allows to disable the sorting of keys on output. [#358](https://github.com/hynek/structlog/issues/358) <https://github.com/hynek/structlog/pull/358>_

... (truncated)

Commits

• e9e77e8 Prepare 21.4.0
• c31ec11 We don't need that comma
• 2c2bcc3 Fold backwards compatibility policy into changelog
• e5ad4fb Update changelog
• 677b794 Simplify -OO handling
• e45b84b Add structlog.contextvars.bound_contextvars, add missing example to thread-lo...
• 05c4b51 Add example for bound_threadlocal
• a0becf5 Add threadlocal bound context manager (#371)
• 3647f47 GitHub really wants us to use Markdown
• e5507ad Add missing TODO
• Additional commits viewable in compare view

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[dependabot]

Superseded by #1238.