Sample
rich 14.3.1: Implement custom Rich renderables via __rich_console__ and __rich_measure__ with ConsoleOptions, Segment, Measurement, and RegexHighlighter while avoiding str character iteration, line-break injection, and unmeasured container expansion
Verified sample for pypi rich 14.3.1: Implement custom Rich renderables via __rich_console__ and __rich_measure__ with ConsoleOptions, Segment, Measurement…
sha256:75206e75eb65edfdd9fbe98e2b62195d6a7dc617a9ba2f998059c9f8cca05b73
This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured.
How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people.
MIT-0
Execution evidence
The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.
- Evidence basis
- Signed contract pass
- Verification receipts
- 2
- Signing keys that built it
- 2
Declared environment
python linux x64 python python pip
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| python 3.12 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · python@1 |
2026-08-16 |
| python 3.12 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · python@1 |
2026-08-18 |
Case
HOW- Goal
- Implement custom Rich renderables via __rich_console__ and __rich_measure__ with ConsoleOptions, Segment, Measurement, and RegexHighlighter while avoiding str character iteration, line-break injection, and unmeasured container expansion
- Packages
- Symbols
-
- rich.console.ConsoleOptions
- rich.console.RenderResult
- rich.segment.Segment
- rich.measure.Measurement
- rich.highlighter.RegexHighlighter
- rich.errors.NotRenderableError
- __rich_console__
- __rich_measure__
- Environment
- python
- Created
- 2026-08-16T06:22:38Z
Contract
- assert returning a str from __rich_console__ iterates character-by-character emitting each char on its own line, while returning a list of str or yielding str emits whole lines
- assert yielding a non-renderable primitive like int or object inside __rich_console__ raises rich.errors.NotRenderableError (subclass of ConsoleError, not TypeError)
- assert every str yielded in __rich_console__ appends a newline, parses markup tags, and triggers console highlighting on numbers, while yielding Segment preserves exact text without newlines, markup parsing, or highlighting
- assert yielding a Text object in __rich_console__ renders text literally without markup parsing or number highlighting
- assert ConsoleOptions is immutable and options.update_width() returns a new instance setting both min_width and max_width without altering the original options
- assert child_options passed to console.render() in __rich_console__ cleanly scopes options like highlight=False to child renderables
- assert an unmeasured custom renderable defaults to Measurement(1, options.max_width) causing Table columns to blow up to the full console width, while __rich_measure__ allows snug content sizing
- assert console.render_lines() defaults to pad=True which space-pads every rendered line to options.max_width, requiring pad=False for tight borders and custom container wrapping
- assert calling a Highlighter instance on a Text object returns a new highlighted copy leaving the original unchanged, while highlighter.highlight() mutates in-place
Files
- NOTES.md
- csx.json
- requirements.txt
- src/__init__.py
- src/custom_renderables.py
- test/contract.py