zhinst-comms
Zurich Instruments internal python bindings for Capnp
Decision gist · record as of 2026-08-14
No, unless you are developing or maintaining the labone package or a related Zurich Instruments integration. The package documentation explicitly states it is not intended for direct use and is a low-level dependency of labone. Install labone instead if you need to control Zurich Instruments hardware; it will pull in zhinst-comms automatically.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.10 or later.
- This is a low-level library intended for use by labone; direct usage is not recommended per the package documentation.
- Medium install friction due to precompiled wheels across multiple platforms and Python versions (3.10–3.14).
License · maintenance · safety
permissive license (permissive) — Dual-licensed under MIT and Other/Proprietary terms. The permissive treatment suggests MIT is the primary license, but the proprietary component warrants review of the full license text before commercial use.
last release 2026-06-19 (56 days)
0 known vulnerabilities (OSV.dev, 2026-08-14) · 84,123 downloads/mo, #14,023 on PyPI
Alternatives
Verify before relying
pip install zhinst-comms
import zhinst.comms
# Typically used indirectly via the labone package for server communication- Exact scope of the proprietary license component and any restrictions on commercial use or redistribution.
- Whether the package can be used standalone or only through labone, despite the generic API claim.
- Performance characteristics and latency overhead of the aiohttp-based communication stack.
What it is and what it does
zhinst-comms is a low-level protocol stack library that wraps Cap'n Proto bindings for communicating with Zurich Instruments servers. It abstracts the underlying serialization and transport details, providing a generic API that can be adapted to different server implementations and protocols. The package bundles precompiled wheels for macOS (Intel and ARM), Linux, and Windows across Python 3.10–3.14, making cross-platform deployment straightforward.
The package is explicitly not intended for direct use; it serves as a foundation for the labone package, which provides the user-facing API for controlling Zurich Instruments hardware. Its four runtime dependencies—aiohttp for async HTTP communication, click for CLI utilities, packaging for version handling, and typing-extensions for type hints—are lightweight and widely maintained. The dual licensing (MIT and proprietary) and active maintenance status suggest this is a production component of a commercial ecosystem.
Use it for
- Building custom client libraries that communicate with Zurich Instruments LabOne servers using the Cap'n Proto protocol.
- Integrating Zurich Instruments hardware control into larger scientific or measurement automation frameworks via the labone package.
- Developing server-side protocol handlers that need to parse or respond to Zurich Instruments communication formats.
- Cross-platform deployment of instrument control code across macOS, Linux, and Windows without recompilation.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
No, unless you are developing or maintaining the labone package or a related Zurich Instruments integration.
The package documentation explicitly states it is not intended for direct use and is a low-level dependency of labone. Install labone instead if you need to control Zurich Instruments hardware; it will pull in zhinst-comms automatically.
Install
zhinst-comms on PyPI
Before you install
Medium install friction due to precompiled wheels across multiple platforms and Python versions (3.10–3.14). Active maintenance with a release within the last 56 days. Four lightweight runtime dependencies (aiohttp, click, packaging, typing-extensions) add modest overhead.
Requires Python 3.10 or later. This is a low-level library intended for use by labone; direct usage is not recommended per the package documentation.
License in practice
Dual-licensed under MIT and Other/Proprietary terms. The permissive treatment suggests MIT is the primary license, but the proprietary component warrants review of the full license text before commercial use.
Quickstart
pip install zhinst-comms
import zhinst.comms
# Typically used indirectly via the labone package for server communicationVerify before relying
- Exact scope of the proprietary license component and any restrictions on commercial use or redistribution.
- Whether the package can be used standalone or only through labone, despite the generic API claim.
- Performance characteristics and latency overhead of the aiohttp-based communication stack.
Package facts
| License | permissive license permissive |
| Python support | Supports the current Python release >=3.10 |
| Install friction | Medium. Platform-specific wheel |
| Runtime dependencies | 4 packagesaiohttpclickpackagingtyping-extensions |
| Maintenance | Actively maintained 56 days since the last release |
| First released | |
| Downloads | 84,123 / month, #14,023 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 4 - BetaIntended Audience :: DevelopersLicense :: OSI Approved :: MIT LicenseLicense :: Other/Proprietary LicenseNatural Language :: EnglishOperating System :: MacOS :: MacOS XOperating System :: Microsoft :: WindowsOperating System :: POSIX :: LinuxProgramming Language :: C++Programming Language :: PythonProgramming Language :: Python :: 3Programming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.14Topic :: Scientific/EngineeringTopic :: Software Development :: Libraries :: Python Modules |
Evidence: zhinst_comms-4.1.0.2607641-cp310-cp310-macosx_10_11_x86_64.whl; zhinst_comms-4.1.0.2607641-cp310-cp310-macosx_11_0_arm64.whl; zhinst_comms-4.1.0.2607641-cp310-cp310-manylinux1_x86_64.whl; zhinst_comms-4.1.0.2607641-cp310-cp310-manylinux2014_aarch64.whl; zhinst_comms-4.1.0.2607641-cp310-cp310-win_amd64.whl; zhinst_comms-4.1.0.2607641-cp311-cp311-macosx_10_11_x86_64.whl; zhinst_comms-4.1.0.2607641-cp311-cp311-macosx_11_0_arm64.whl; zhinst_comms-4.1.0.2607641-cp311-cp311-manylinux1_x86_64.whl; zhinst_comms-4.1.0.2607641-cp311-cp311-manylinux2014_aarch64.whl; zhinst_comms-4.1.0.2607641-cp311-cp311-win_amd64.whl; zhinst_comms-4.1.0.2607641-cp312-cp312-macosx_10_11_x86_64.whl; zhinst_comms-4.1.0.2607641-cp312-cp312-macosx_11_0_arm64.whl; zhinst_comms-4.1.0.2607641-cp312-cp312-manylinux1_x86_64.whl; zhinst_comms-4.1.0.2607641-cp312-cp312-manylinux2014_aarch64.whl; zhinst_comms-4.1.0.2607641-cp312-cp312-win_amd64.whl; zhinst_comms-4.1.0.2607641-cp313-cp313-macosx_10_11_x86_64.whl; zhinst_comms-4.1.0.2607641-cp313-cp313-macosx_11_0_arm64.whl; zhinst_comms-4.1.0.2607641-cp313-cp313-manylinux1_x86_64.whl; zhinst_comms-4.1.0.2607641-cp313-cp313-manylinux2014_aarch64.whl; zhinst_comms-4.1.0.2607641-cp313-cp313-win_amd64.whl
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