…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 <[email protected]>

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

Co-authored-by: Martin Breuss <[email protected]>

* 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 <[email protected]>
Co-authored-by: brendaweles <[email protected]>
Co-authored-by: Bartosz Zaczyński <[email protected]>

* 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) <[email protected]>
Co-authored-by: Bartosz Zaczyński <[email protected]>

* 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 <[email protected]>

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 <[email protected]>

…ealpython#781)

* Sample code for: How to Write an AGENTS.md File for a Python Project

* Keep single quotes in run1_main.py to match the tutorial

The tutorial presents run1_main.py as the agent's flawed first-run
output, and one of the flaws it calls out is the use of single-quoted
strings. Ruff formatting had normalized them to double quotes, which
contradicted the article.

Restore the original single quotes and exclude this one file from Ruff,
following the existing how-to-indent-in-python/sample_code.py precedent.

Addresses @stephengruppetta's review comment on PR realpython#781.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>

---------

Co-authored-by: Bartosz Zaczyński <[email protected]>
Co-authored-by: Claude Opus 5 (1M context) <[email protected]>
Co-authored-by: Bartosz Zaczyński <[email protected]>

…n#795)

Co-authored-by: Bartosz Zaczyński <[email protected]>

* Materials for Python 3.15 Preview: Sampling Profiler

* Pretzel project

* Reformat code

* Model the mesh and background as dataclasses

Replace the hand-rolled Mesh class and the SimpleNamespace background
with dataclasses, and introduce PEP 695 type aliases for the geometry
primitives. No behavior change.

Co-Authored-By: Claude Fable 5 <[email protected]>

* Add type hints across the Pretzel package

Annotate all function signatures, mark module-level constants as Final,
and reuse the geometry aliases from pretzel.engine. The make_assets
script gets its own local aliases. No behavior change.

Co-Authored-By: Claude Fable 5 <[email protected]>

* Restructure the CLI and polygon color formatting

Extract parse_args() from main(), unfold the color-cache conditional
into a plain if/else inside the render loop, wire --cache-colors
through the windowed viewer, and order helpers below their callers
in assets.py and make_assets.py. No behavior change.

Co-Authored-By: Claude Fable 5 <[email protected]>

* Update README

* Update README

* Pin Python version (previously git-ignored)

---------

Co-authored-by: realpython-bot <[email protected]>
Co-authored-by: Claude Fable 5 <[email protected]>

* Sample code for: Python 3.15 Preview: UTF-8 by Default

* Rename example files descriptively and print entry count in app_v2

* Add data files read by the sample scripts

Ship data.json, legacy.csv, and notes.txt so every script runs on first
try instead of raising FileNotFoundError. Also align the os_encoding.py
comment with the tutorial's lowercase "UTF-8 mode".

* Keep app.py parsing JSON after adding the explicit encoding

app_v2.py read the file as raw text, so len(data) counted characters and
printed "Loaded 29 entries". Restore json.load() so the only difference
from app_v1.py is the encoding argument, matching the tutorial.

* Parse data.json with json.load() in explicit_encoding.py

Keeps data.json handling consistent with app_v1.py and app_v2.py across
the tutorial's examples. legacy.csv stays a raw read, since the point
there is the locale sentinel rather than parsing.

---------

Co-authored-by: Bartosz Zaczyński <[email protected]>