zope.component
Zope Component Architecture
Decision gist · record as of 2026-08-14
Yes, if you are working within the Zope ecosystem or building a system that requires interface-based component registration and loose coupling. The package is stable, actively maintained, and has no known vulnerabilities. However, the aging maintenance status (192 days since last release) and unclear license treatment warrant verification before adoption in new projects outside the Zope community.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.10 or later; earlier Python versions are not supported.
- Low install friction with a pure-Python wheel.
- Maintenance status is aging—last release was 192 days ago—but the package remains actively maintained by the Zope Toolkit project and supports current Python versions through 3.14.
License · maintenance · safety
ZPL-2.1 (unclear) — Licensed under ZPL-2.1 (Zope Public License 2.1), but license treatment is marked unclear in the metadata. Verify the license terms before use in proprietary or restrictively-licensed projects.
last release 2026-02-03 (192 days) · last repo commit 2026-02-03 · 33 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 1,014,317 downloads/mo, #4,503 on PyPI
Alternatives
Verify before relying
pip install zope.component
from zope.interface import Interface, implementer
from zope.component import adapter, provideAdapter, queryAdapter
class IFoo(Interface):
pass
@implementer(IFoo)
class Foo:
pass
provideAdapter(Foo, IFoo)
foo = queryAdapter(Foo(), IFoo)- Whether the unclear license treatment affects commercial or proprietary use cases.
- Performance characteristics when managing large numbers of registered components.
- Compatibility with frameworks beyond Zope 3 and Zope 5 (listed in classifiers).
What it is and what it does
zope.component is the core implementation of the Zope Component Architecture, a design pattern for building loosely-coupled systems through interface-based component registration and lookup. It works with zope.interface to let you define interfaces, register implementations as adapters or utilities, and query them at runtime without direct dependencies between components.
The package provides a global component registry and site manager for organizing components hierarchically, supporting both in-memory and persistent storage. It's used primarily in Zope-based web frameworks and applications that need flexible, runtime-configurable component composition, though it's designed to be independently reusable in any Python project.
Use it for
- Building plugin architectures where implementations can be registered and swapped without modifying core code.
- Implementing adapter patterns to convert between incompatible interfaces at runtime.
- Creating utility registries for application-wide singleton-like services accessed by interface.
- Organizing large applications with hierarchical local site managers for component isolation.
- Enabling ZCML (Zope Configuration Markup Language) declarative component configuration in web frameworks.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you are working within the Zope ecosystem or building a system that requires interface-based component registration and loose coupling.
The package is stable, actively maintained, and has no known vulnerabilities. However, the aging maintenance status (192 days since last release) and unclear license treatment warrant verification before adoption in new projects outside the Zope community.
Install
zope-component on PyPI
Before you install
Low install friction with a pure-Python wheel. Maintenance status is aging—last release was 192 days ago—but the package remains actively maintained by the Zope Toolkit project and supports current Python versions through 3.14.
Requires Python 3.10 or later; earlier Python versions are not supported.
License in practice
Licensed under ZPL-2.1 (Zope Public License 2.1), but license treatment is marked unclear in the metadata. Verify the license terms before use in proprietary or restrictively-licensed projects.
Quickstart
pip install zope.component
from zope.interface import Interface, implementer
from zope.component import adapter, provideAdapter, queryAdapter
class IFoo(Interface):
pass
@implementer(IFoo)
class Foo:
pass
provideAdapter(Foo, IFoo)
foo = queryAdapter(Foo(), IFoo)Verify before relying
- Whether the unclear license treatment affects commercial or proprietary use cases.
- Performance characteristics when managing large numbers of registered components.
- Compatibility with frameworks beyond Zope 3 and Zope 5 (listed in classifiers).
Package facts
| License | ZPL-2.1 unclear |
| Python support | Supports the current Python release >=3.10 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 3 packageszope.eventzope.hookablezope.interface |
| Maintenance | Aging 192 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 1,014,317 / month, #4,503 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/StableFramework :: Zope :: 3Framework :: Zope :: 5Intended Audience :: DevelopersOperating System :: OS IndependentProgramming Language :: PythonProgramming Language :: Python :: 3Programming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.14Programming Language :: Python :: Implementation :: CPythonProgramming Language :: Python :: Implementation :: PyPyTopic :: Software Development :: Libraries :: Python Modules |
Evidence: zope_component-7.1-py3-none-any.whl
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See also zope.interface · zope.site · zope.size · zope.proxy · zope.container · zope.hookable · zope.annotation · mypy-zope · zope.browserpage · zope.configuration