…hon" (realpython#775)

* Add materials for CrewAI tutorial

* Apply Black formatting

* Apply Ruff formatting

* Update coordinating-teams-of-ai-agents-with-crewai-in-python/README.md

Co-authored-by: Martin Breuss <martin-martin@users.noreply.github.com>

* Update coordinating-teams-of-ai-agents-with-crewai-in-python/requirements.txt

Co-authored-by: Martin Breuss <martin-martin@users.noreply.github.com>

* Update README.md

* Rename the folder to reflect the keyphrase

* Pin requirements for a reproducible environment

* Bump the model to avoid hallucinations and sort import statements

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Co-authored-by: Martin Breuss <martin-martin@users.noreply.github.com>
Co-authored-by: brendaweles <160772586+brendaweles@users.noreply.github.com>
Co-authored-by: Bartosz Zaczyński <bartosz.zaczynski@gmail.com>

* Materials for Antigravity CLI

* Add a test fixture to reproduce the zerodivision error

…Faster (realpython#790)

Update the sample text editor from PyQt5 to PyQt6 (app.py and the pyuic6-generated main_window_ui.py), add a standard top-level README plus a detailed app README in sample_editor/, and commit the generated module in ruff-formatted form so CI passes without linter-config changes.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Co-authored-by: Bartosz Zaczyński <bartosz.zaczynski@gmail.com>

* feat: add pointblank tutorial materials

* docs: refine pointblank materials

* fix: sync pointblank materials with tutorial scripts

Align the quickstart and atom scripts and the atom YAML with the
published tutorial examples, and refresh the generated HTML report.

* Update README

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Co-authored-by: Bartosz Zaczyński <bartosz.zaczynski@gmail.com>

Publishes the code from the 'Understanding Mixin Classes in Python'
video course so it can be offered as a free email opt-in download to
the YouTube/free audience (course zip is otherwise members-only).

This reverts commit f996638.

Publishes the code from the 'Understanding Mixin Classes in Python'
video course (https://realpython.com/courses/understanding-mixin-classes-in-python/)
so it can be offered as a free email opt-in download to the YouTube/free
audience. The members-only course zip is otherwise paywalled.

Files are ruff-formatted (line-length 79, trailing newlines) to pass the
linters check.

…ourse

Add python-mixins-course sample code

* Add materials for FastAPI OpenTelemetry tutorial

* Sync with tutorial after TR

* Fix README formatting and update tutorial link

* Organize imports

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Co-authored-by: Bartosz Zaczyński <bartosz.zaczynski@gmail.com>