harp-python

A low-level interface to data collected with the Harp binary protocol.

How to install

The source code is currently hosted on GitHub.

Binary installers for the latest released version are available at the Python Package Index (PyPI) and can be installed using pip.

pip install harp-python

The list of changes between each release can be found here.

Data model

The interface makes use of a Pydantic data model generated from Harp device schema definitions. The schema data classes are used to automatically generate binary readers for each device.

All binary data files from a single device need to be stored in the same folder alongside the device meta-schema, named device.yml. Each register file should have the following naming convention <deviceName>_<registerAddress>.bin.

For example, for a dataset collected with a Behavior device, you might have:

📦device.harp
 ┣ 📜Behavior_0.bin
 ┣ 📜Behavior_1.bin
...
 ┗ 📜device.yml

How to use

Create device reader object from schema

import harp
reader = harp.create_reader("device.harp")

Read data from named register

reader.OperationControl.read()

Access register metadata

reader.OperationControl.register.address

Create device reader object with UTC datetime format

reader = harp.create_reader("device.harp", epoch=harp.REFERENCE_EPOCH)

Read data with message type information

reader.OperationControl.read(keep_type=True)

Read data from a specific file

reader.OperationControl.read("data/Behavior_10.bin")