pyjoulescope-driver
Joulescope™ driver
Decision gist · record as of 2026-08-14
Yes, if you own or plan to use a Joulescope device (JS110, JS220, or JS320). The package is actively maintained, has no known vulnerabilities, uses a permissive license, and provides both command-line and programmatic access to the hardware. Install friction is moderate but manageable for the target audience. Not relevant for users without Joulescope hardware.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.12 or later.
- On Linux, udev rules must be installed for device access.
- On Windows, may require Microsoft C++ Build Tools if building from source.
License · maintenance · safety
Apache-2.0 (permissive) — Apache-2.0 permissive license allows commercial and private use, modification, and redistribution with attribution and liability disclaimer. No restrictions on downstream licensing.
last release 2026-08-04 (10 days) · last repo commit 2026-08-08 · 16 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 259,647 downloads/mo, #8,408 on PyPI
Alternatives
Verify before relying
pip install pyjoulescope_driver
import pyjoulescope_driver
# Command-line entry points available:
# python -m pyjoulescope_driver scan
# python -m pyjoulescope_driver info- Whether the package provides a programmatic API beyond command-line tools for real-time data streaming and device configuration
- Performance characteristics and data throughput rates for the supported Joulescope models
- Whether PubSub event-driven API mentioned in description is directly exposed to Python users
What it is and what it does
pyjoulescope_driver is a Python interface to the Joulescope hardware driver, a second-generation C library that communicates with Joulescope precision DC energy analyzers. It supports three device models (JS110, JS220, JS320) and provides command-line tools for scanning and querying connected devices. The package is built on a modern event-driven PubSub architecture designed for easier integration with user interfaces and other software packages, replacing an earlier Python-only driver from 2019.
The package depends on numpy, psutil, pywin32, and requests. It is distributed as pre-compiled wheels for Python 3.12, 3.13, and 3.14 across macOS (universal2), Linux (aarch64, x86_64), and Windows (amd64, arm64) platforms. Installation is straightforward via pip, though Linux users must install udev rules separately to access the device, and source builds require CMake and a C++ toolchain.
Use it for
- Measure and log DC power consumption of embedded systems or hardware prototypes during development and testing
- Automate energy profiling of devices in CI/CD pipelines to detect power regressions
- Build custom monitoring dashboards or data analysis scripts around Joulescope hardware measurements
- Integrate Joulescope measurements into larger test automation or hardware characterization workflows
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you own or plan to use a Joulescope device (JS110, JS220, or JS320).
The package is actively maintained, has no known vulnerabilities, uses a permissive license, and provides both command-line and programmatic access to the hardware. Install friction is moderate but manageable for the target audience. Not relevant for users without Joulescope hardware.
Install
pyjoulescope-driver on PyPI
Before you install
Medium install friction due to compiled wheels for multiple platforms and Python versions (3.12–3.14). Active maintenance with a release 10 days old. Requires development tools (CMake, build toolchain) if building from source; pre-built wheels available for macOS, Linux, and Windows. On Linux, udev rules installation is necessary for device access.
Requires Python 3.12 or later. On Linux, udev rules must be installed for device access. On Windows, may require Microsoft C++ Build Tools if building from source.
License in practice
Apache-2.0 permissive license allows commercial and private use, modification, and redistribution with attribution and liability disclaimer. No restrictions on downstream licensing.
Quickstart
pip install pyjoulescope_driver
import pyjoulescope_driver
# Command-line entry points available:
# python -m pyjoulescope_driver scan
# python -m pyjoulescope_driver infoVerify before relying
- Whether the package provides a programmatic API beyond command-line tools for real-time data streaming and device configuration
- Performance characteristics and data throughput rates for the supported Joulescope models
- Whether PubSub event-driven API mentioned in description is directly exposed to Python users
Package facts
| License | Apache-2.0 permissive |
| Python support | Supports the current Python release ~=3.12 |
| Install friction | Medium. Platform-specific wheel |
| Runtime dependencies | 4 packagesnumpypsutilpywin32requests |
| Maintenance | Actively maintained 10 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 259,647 / month, #8,408 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 5 - Production/StableIntended Audience :: DevelopersIntended Audience :: End Users/DesktopIntended Audience :: Science/ResearchLicense :: OSI Approved :: Apache Software LicenseOperating System :: MacOSOperating System :: MacOS :: MacOS XOperating System :: Microsoft :: Windows :: Windows 10Operating System :: Microsoft :: Windows :: Windows 11Operating System :: POSIX :: LinuxProgramming Language :: PythonProgramming Language :: Python :: 3Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.14Programming Language :: Python :: Implementation :: CPythonTopic :: Scientific/EngineeringTopic :: Software Development :: Embedded SystemsTopic :: Software Development :: TestingTopic :: System :: Hardware :: Hardware DriversTopic :: System :: Hardware :: Universal Serial Bus (USB)Topic :: Utilities |
Evidence: pyjoulescope_driver-2.4.0-cp312-cp312-macosx_10_13_universal2.whl; pyjoulescope_driver-2.4.0-cp312-cp312-manylinux_2_28_aarch64.whl; pyjoulescope_driver-2.4.0-cp312-cp312-manylinux_2_28_x86_64.whl; pyjoulescope_driver-2.4.0-cp312-cp312-win_amd64.whl; pyjoulescope_driver-2.4.0-cp312-cp312-win_arm64.whl; pyjoulescope_driver-2.4.0-cp313-cp313-macosx_10_13_universal2.whl; pyjoulescope_driver-2.4.0-cp313-cp313-manylinux_2_28_aarch64.whl; pyjoulescope_driver-2.4.0-cp313-cp313-manylinux_2_28_x86_64.whl; pyjoulescope_driver-2.4.0-cp313-cp313-win_amd64.whl; pyjoulescope_driver-2.4.0-cp313-cp313-win_arm64.whl; pyjoulescope_driver-2.4.0-cp314-cp314-macosx_10_15_universal2.whl; pyjoulescope_driver-2.4.0-cp314-cp314-manylinux_2_28_aarch64.whl; pyjoulescope_driver-2.4.0-cp314-cp314-manylinux_2_28_x86_64.whl; pyjoulescope_driver-2.4.0-cp314-cp314-win_amd64.whl; pyjoulescope_driver-2.4.0-cp314-cp314-win_arm64.whl
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