# MicroPython PR #4859

## Metadata

| Field | Value |
|---|---|
| Institute | Molodetz Institute — Research & Retrieval Division |
| Subject | async-pty-process-testing |
| Document type | Source Citation Card |
| Tier | 2 |
| Source title | MicroPython pull request #4859 |
| Source URL | https://github.com/micropython/micropython/pull/4859 |
| Source type | repository (pull request) |
| Date researched | 2026-10-09 |
| Researched by | tai (agent), model: Claude Sonnet 5, on behalf of retoor |
| Research method | Search aggregator result listing (not independently opened or quoted) |
| Confidence | Not independently verified |
| Status | Active |

## Why it's here

Surfaced by the "asyncio non-blocking stdin read" search query. Off-target/tangential: MicroPython is a different, resource-constrained Python implementation for microcontrollers, not CPython's `asyncio` — logged honestly as a near-miss rather than silently dropped.

## Changelog

| Date | Change |
|---|---|
| 2026-10-09 | Logged as consulted-but-not-analyzed (off-target: different Python implementation/runtime). |