visio-schema
The wire contract for the Visio sensor ecosystem: the generated protobuf
message bindings plus a small, hand-written framing codec, packaged so you can
read a live device or a recording with one pip install. It is the single
source of truth for what Visio data looks like on the wire; the transport,
bus, and recording stack live in a separate layer.
Imported as visio_schema. Full docs, the wire spec, and C++ sources are in the
GitHub repository.
Install
pip install visio-schema
One install includes MCAP read/write (read_mcap / McapWriter) and the
visio-display live viewer — no extras to choose. Released wheels (Linux
manylinux_2_28 x86_64, macOS universal2, CPython 3.10–3.13) bundle an optional
native reader for higher throughput. If no wheel matches your platform, the sdist
installs a pure-Python reader with identical behavior — only throughput differs.
Quickstart
from visio_schema import read_serial, read_mcap, message_class
# live device -> (Message, Channel) rows
for msg, ch in read_serial("/dev/ttyACM0"):
cls = message_class(ch.schema_name) # resolve the payload type
payload = cls.FromString(msg.payload)
print(ch.topic, payload)
# replay a recording
for msg, ch in read_mcap("run.mcap"):
...
Send commands and read replies with serial_endpoint(...) + command_message.
See usage.md
for the three end-to-end recipes.
visio-display viewer
The package installs a visio-display console command that reads a live device
(serial or TCP) or replays an MCAP, and fans it out to a live
Foxglove WebSocket, a live Rerun
viewer, and/or an MCAP recording:
visio-display --serial /dev/ttyACM0 --rerun
visio-display --tcp my-device.local --foxglove
visio-display --mcap-in run.mcap --rerun
# also runnable as: python -m visio_schema.display
License
MIT — see LICENSE.
1 maintainer
Metadata
1 maintainer
Release files for visio-schema 0.4.2
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | |
|---|---|---|---|
| visio_schema-0.4.2.tar.gz | 302.7 kB | Details |
Built distributions (wheels)
| File | Reset | |||
|---|---|---|---|---|
| visio_schema-0.4.2-cp313-cp313-manylinux_2_27_x86_64.manylinux_2_28_x86_64.whl | CPython 3.13 | CPython 3.13 | Linux glibc 2.28+ x86-64, Linux glibc 2.27+ x86-64 | Details |
| visio_schema-0.4.2-cp313-cp313-macosx_11_0_universal2.whl | CPython 3.13 | CPython 3.13 | macOS 11.0+ universal2 (ARM64, x86-64) | Details |
| visio_schema-0.4.2-cp312-cp312-manylinux_2_27_x86_64.manylinux_2_28_x86_64.whl | CPython 3.12 | CPython 3.12 | Linux glibc 2.28+ x86-64, Linux glibc 2.27+ x86-64 | Details |
| visio_schema-0.4.2-cp312-cp312-macosx_11_0_universal2.whl | CPython 3.12 | CPython 3.12 | macOS 11.0+ universal2 (ARM64, x86-64) | Details |
| visio_schema-0.4.2-cp311-cp311-manylinux_2_27_x86_64.manylinux_2_28_x86_64.whl | CPython 3.11 | CPython 3.11 | Linux glibc 2.27+ x86-64, Linux glibc 2.28+ x86-64 | Details |
| visio_schema-0.4.2-cp311-cp311-macosx_11_0_universal2.whl | CPython 3.11 | CPython 3.11 | macOS 11.0+ universal2 (ARM64, x86-64) | Details |
| visio_schema-0.4.2-cp310-cp310-manylinux_2_27_x86_64.manylinux_2_28_x86_64.whl | CPython 3.10 | CPython 3.10 | Linux glibc 2.27+ x86-64, Linux glibc 2.28+ x86-64 | Details |
| visio_schema-0.4.2-cp310-cp310-macosx_11_0_universal2.whl | CPython 3.10 | CPython 3.10 | macOS 11.0+ universal2 (ARM64, x86-64) | Details |
Total release size: 10.9 MB
Release files / visio_schema-0.4.2.tar.gz
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