python-aaronia

Python bindings for sdr-aaronia-rs. Stream IQ samples from Aaronia SPECTRAN V6 devices, through an RTSA-Suite PRO HTTP server block or the native SDK, or play back recorded .rtsa files, into NumPy or Apache Arrow.

  • PyPI package: python-aaronia · importable module: aaronia
  • Wheels: abi3, CPython ≥ 3.9, one wheel per OS and architecture, plus an sdist for other platforms. Building from the sdist requires a Rust toolchain.
  • License: GPL-3.0-or-later

Install

pip install python-aaronia

From a checkout, which requires Rust and maturin:

cd python-aaronia
maturin develop --release

Quickstart

import aaronia

cfg = aaronia.AaroniaConfig()
cfg.http_base_url = "http://localhost:54664"  # RTSA-Suite HTTP server block
cfg.center_freq = 2.44e9                      # Hz
cfg.sample_rate = 15.36e6                     # Hz
cfg.format = "F32"                            # wire format: F32, F16, or I16

src = aaronia.AaroniaSource()
src.start_streaming(cfg)

samples = src.read_samples_numpy(65536)       # numpy complex64 array
batch = src.read_samples_arrow(65536)         # pyarrow FixedSizeListArray of [re, im]

src.set_center_frequency(2.41e9)              # live retune, no teardown

print(src.cumulative_drops(), src.take_overrun(), src.last_timestamp_ns())
src.stop_streaming()

File playback: set cfg.file_path = "capture.rtsa" instead of http_base_url.

The quickstart covers configuring the RTSA-Suite HTTP Server block, which everything above depends on.

Configuration (AaroniaConfig)

Every field is readable and writable.

Field Meaning
http_base_url RTSA-Suite HTTP server URL; pins the HTTP backend
file_path Path to a recorded .rtsa file; pins the file backend
device_serial Device selection for the native-SDK backend
center_freq Center frequency, Hz
sample_rate IQ sample rate, Hz (the Aaronia "span")
reference_level Reference level, dBm
format HTTP wire format: "F32", "F16" or "I16". I16 is the low-bandwidth network mode
receiver_channel "Rx1" (default), "Rx2", or "Rx1And2" (native SDK, full V6)
read_timeout Seconds a blocking read waits before AaroniaTimeoutError (default 30.0)
auto_reconnect Reconnect the HTTP stream after a drop (default True)

Unknown format/receiver_channel strings raise ValueError instead of silently defaulting.

Behaviour

  • One copy per read. Samples are copied once from the Rust receive buffer into a NumPy or Arrow owned buffer, which is then safe to hold indefinitely. This is not zero-copy; one copy is the accurate count.
  • Blocking calls release the GIL. Other Python threads keep running; KeyboardInterrupt is delivered between calls. Reads block until count samples arrive or cfg.read_timeout seconds (default 30) elapse, which raises AaroniaTimeoutError.
  • Connecting retries transient failures, up to 4 attempts within a 10 second budget, so a cold *.local hostname or a server that is still starting does not fail on the first attempt.
  • Dropped streams reconnect automatically when auto_reconnect is enabled, which is the default. The reader reopens the stream, re-applies the current tuning, and flags the first read after the gap through take_overrun(). After five failed attempts the stream ends and reads raise AaroniaConnectionError.
  • Typed exceptions. AaroniaConnectionError (unreachable endpoint), AaroniaTimeoutError, AaroniaHardwareError (device and SDK errors) and ValueError (invalid configuration), mapped from the Rust error enum with the full cause chain in the message.
  • Dual-channel reads (receiver_channel = "Rx1And2" with read_samples_dual_numpy(count), returning two time-aligned arrays) require the native-SDK backend: Windows or Linux with the Aaronia SDK installed, and a two-input V6. This path is hardware-unverified; the development device is a single-channel V6 ECO.

Source methods

Method Purpose
start_streaming(cfg) / stop_streaming() Session lifecycle
read_samples_numpy(count) NumPy complex64 array
read_samples_arrow(count) PyArrow FixedSizeListArray of [re, im] float32 pairs
read_samples_dual_numpy(count) (rx1, rx2) NumPy arrays (dual-channel captures)
set_center_frequency(hz) / set_sample_rate(hz) / set_reference_level(dbm) Live retuning
cumulative_drops() Total server-reported dropped samples
take_overrun() True once per detected receive-side overrun
last_timestamp_ns() Epoch-ns timestamp of the last received block (HTTP backend; 0 otherwise)

Project links

Data verified by PyPI on Aug 12, 2026
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Key dates

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  • Released:
Newer release available (0.11.2)

1 maintainer

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Avatar for ibentley from gravatar.com ibentley

GitHub Statistics

Data verified by PyPI on Aug 12, 2026
The GitHub source repository was provided by the project maintainers and verified by PyPI at the time of upload. Stars, forks, and open issues/PRs are derived from that repository and have not been independently verified.

License

GNU General Public License v3 or later (GPLv3+) (GPL-3.0-or-later)

Requires

Python >=3.9

Classifiers

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