pylink-square
Python interface for SEGGER J-Link.
Decision gist · record as of 2026-08-14
Yes. The package is actively maintained, has no known vulnerabilities, low install friction, and a permissive license. Install it if you need to automate or script SEGGER J-Link operations from Python. The main prerequisite is having SEGGER J-Link Tools >= 6.0b installed separately on your system; without that external dependency, the package cannot function.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires SEGGER J-Link Tools >= 6.0b to be installed separately on your system; the native library (libjlinkarm.so/.dylib/JLinkARM.dll) must be discoverable via system library paths or explicitly configured.
- Low friction installation with only two lightweight runtime dependencies (psutil and six).
- Repository is actively maintained with recent commits and no known vulnerabilities.
License · maintenance · safety
Apache 2.0 (permissive) — Licensed under Apache 2.0 (permissive), allowing commercial and private use with minimal restrictions; you must retain license notices in distributions.
last release 2026-03-04 (163 days) · last repo commit 2026-03-13 · 425 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 1,801,278 downloads/mo, #3,542 on PyPI
Alternatives
Verify before relying
import pylink
jlink = pylink.JLink()
jlink.open('123456789')
jlink.connect('device', verbose=True)
jlink.flash(firmware, 0x0)
jlink.reset()- Whether the package works with Python versions between 3.0 and 3.7 (requires_python says >=3.0 but description says >=3.7)
- Current test coverage and whether functional tests are regularly run in CI
- Support status for J-Link Tools versions newer than 6.0b
What it is and what it does
pylink-square is a Python wrapper around the SEGGER J-Link native library, enabling programmatic control of J-Link debug probes from Python code. It abstracts the low-level C API into a Pythonic interface for tasks like connecting to embedded devices, flashing firmware, and resetting targets. The package depends on psutil and six for cross-platform compatibility and system introspection.
The library is designed for embedded systems developers and automation engineers who need to script J-Link operations—such as batch firmware deployment or integration into CI/CD pipelines. It requires the SEGGER J-Link Tools to be installed separately on the host system; pylink-square acts as a bridge between your Python code and that native toolchain.
Use it for
- Automate firmware flashing across multiple embedded devices in a manufacturing or testing environment.
- Integrate J-Link operations into CI/CD pipelines for automated device testing and deployment.
- Build custom debugging or diagnostic tools that programmatically interact with ARM-based microcontrollers.
- Script device reset and connection sequences for batch testing or validation workflows.
- Create Python-based test harnesses that need to control J-Link probes without manual intervention.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes.
The package is actively maintained, has no known vulnerabilities, low install friction, and a permissive license. Install it if you need to automate or script SEGGER J-Link operations from Python. The main prerequisite is having SEGGER J-Link Tools >= 6.0b installed separately on your system; without that external dependency, the package cannot function.
Install
pylink-square on PyPI
Before you install
Low friction installation with only two lightweight runtime dependencies (psutil and six). Repository is actively maintained with recent commits and no known vulnerabilities.
Requires SEGGER J-Link Tools >= 6.0b to be installed separately on your system; the native library (libjlinkarm.so/.dylib/JLinkARM.dll) must be discoverable via system library paths or explicitly configured.
License in practice
Licensed under Apache 2.0 (permissive), allowing commercial and private use with minimal restrictions; you must retain license notices in distributions.
Quickstart
import pylink
jlink = pylink.JLink()
jlink.open('123456789')
jlink.connect('device', verbose=True)
jlink.flash(firmware, 0x0)
jlink.reset()Verify before relying
- Whether the package works with Python versions between 3.0 and 3.7 (requires_python says >=3.0 but description says >=3.7)
- Current test coverage and whether functional tests are regularly run in CI
- Support status for J-Link Tools versions newer than 6.0b
Package facts
| License | Apache 2.0 permissive |
| Python support | Supports the current Python release >=3.0 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 2 packagespsutilsix |
| Maintenance | Actively maintained 163 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 1,801,278 / month, #3,542 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
Evidence: pylink_square-2.0.1-py3-none-any.whl
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