readback
Validation via echo-confirmation. Send a value, read it back through a confirm function, and fail closed on mismatch — the classic command-then-verify pattern used in safety and control systems.
Install
pip install readback
Usage
from readback import readback, ReadbackError
sent = {"motor": "arm", "rpm": 1200}
confirmed = readback(sent, confirm_fn=lambda: {"motor": "arm", "rpm": 1200})
assert confirmed == sent
try:
readback(sent, confirm_fn=lambda: {"motor": "arm", "rpm": 0})
except ReadbackError as e:
assert e.expected == sent
assert e.got["rpm"] == 0
Roadmap
This is an early 0.1.0 release with active development planned:
- Tolerance / partial-match policies
- Async confirm functions
- Structured logging of mismatch traces
Author
Coldbricks — coldbricks@gmail.com
1 maintainer
Metadata
1 maintainer
Release files for readback 0.1.0
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Source distribution (sdist)
| File | Size | Uploaded | Provenance | Actions |
|---|---|---|---|---|
| readback-0.1.0.tar.gz | 2.6 kB | Without provenance | Details for readback-0.1.0.tar.gz |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Actions Reset |
|---|---|---|---|---|
| readback-0.1.0-py3-none-any.whl | Python 3 | none | any | Details for readback-0.1.0-py3-none-any.whl |
Total release size: 5.8 kB
Release files / readback-0.1.0.tar.gz
| Download URL | readback-0.1.0.tar.gz |
|---|---|
| Size | 2.6 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
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Release files / readback-0.1.0-py3-none-any.whl
| Download URL | readback-0.1.0-py3-none-any.whl |
|---|---|
| Size | 3.2 kB |
| Tags | Python 3 |
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