zope.browser
Shared Zope Toolkit browser components
Decision gist · record as of 2026-08-14
Yes, if you are building or maintaining a Zope Toolkit application—it is a stable, lightweight dependency with no security issues. No, if you are not working within Zope; the interfaces are specific to that ecosystem and have no standalone value. The aging maintenance status (336 days since last release) is not a blocker for a stable interface library, but signals this is not an actively evolving project.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.9 or later; zope.interface must be installed as a runtime dependency.
- Low install friction with only two runtime dependencies (setuptools and zope.interface).
- Maintenance status is aging—last release was 336 days ago—but the package is marked Production/Stable and supports current Python versions (3.9–3.13).
License · maintenance · safety
ZPL-2.1 (unclear) — Licensed under ZPL-2.1 (Zope Public License), which is OSI-approved. License treatment is marked unclear in the metadata, so you may want to review the actual license terms before use in proprietary or redistributed software.
last release 2025-09-12 (336 days)
0 known vulnerabilities (OSV.dev, 2026-08-14) · 171,344 downloads/mo, #10,371 on PyPI
Alternatives
Verify before relying
from zope.browser.interfaces import IView, IBrowserView
# Use these interfaces to define or check browser component contracts
class MyView:
pass
if hasattr(MyView, '__implemented__'):
print('Component implements Zope interfaces')- Whether the package is actively maintained or in long-term stable mode (no repo data available).
- Specific use cases beyond Zope Toolkit integration—whether this is useful outside the Zope ecosystem.
What it is and what it does
zope.browser is a collection of standard interfaces for browser-related components in Zope Toolkit applications. It defines contracts for common web concepts like views, browser views, adding operations, term providers, and system error handlers. The package exists to break circular dependencies in the Zope ecosystem by centralizing these interface definitions in a lightweight, dependency-minimal module.
Developers use it by importing and implementing its interfaces when building Zope-based web applications or components. It is not a runtime framework or middleware—it is purely a contract layer. If you are working within the Zope Toolkit, you will likely import from this package to annotate or check component types; if you are not, it has no direct use.
Use it for
- Define custom browser views in Zope applications by implementing IView or IBrowserView.
- Build form-like components that handle adding objects to containers using the IAdding interface.
- Implement term providers for choice fields and dropdowns via the ITerms interface.
- Create custom error views for system exceptions by implementing ISystemErrorView.
- Type-check or validate browser components against standard Zope interface contracts.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you are building or maintaining a Zope Toolkit application—it is a stable, lightweight dependency with no security issues.
No, if you are not working within Zope; the interfaces are specific to that ecosystem and have no standalone value. The aging maintenance status (336 days since last release) is not a blocker for a stable interface library, but signals this is not an actively evolving project.
Install
zope-browser on PyPI
Before you install
Low install friction with only two runtime dependencies (setuptools and zope.interface). Maintenance status is aging—last release was 336 days ago—but the package is marked Production/Stable and supports current Python versions (3.9–3.13).
Requires Python 3.9 or later; zope.interface must be installed as a runtime dependency.
License in practice
Licensed under ZPL-2.1 (Zope Public License), which is OSI-approved. License treatment is marked unclear in the metadata, so you may want to review the actual license terms before use in proprietary or redistributed software.
Quickstart
from zope.browser.interfaces import IView, IBrowserView
# Use these interfaces to define or check browser component contracts
class MyView:
pass
if hasattr(MyView, '__implemented__'):
print('Component implements Zope interfaces')Verify before relying
- Whether the package is actively maintained or in long-term stable mode (no repo data available).
- Specific use cases beyond Zope Toolkit integration—whether this is useful outside the Zope ecosystem.
Package facts
| License | ZPL-2.1 unclear |
| Python support | Supports the current Python release >=3.9 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 2 packagessetuptoolszope.interface |
| Maintenance | Aging 336 days since the last release |
| First released | |
| Downloads | 171,344 / month, #10,371 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/StableEnvironment :: Web EnvironmentFramework :: Zope :: 3Intended Audience :: DevelopersLicense :: OSI Approved :: Zope Public LicenseNatural Language :: EnglishOperating 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 :: 3.9Programming Language :: Python :: Implementation :: CPythonProgramming Language :: Python :: Implementation :: PyPyTopic :: Internet :: WWW/HTTP |
Evidence: zope_browser-4.0-py3-none-any.whl
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See also zope.browserpage · zope.filerepresentation · zope.browsermenu · zope.exceptions · zope.ptresource · zope.testbrowser · zope.viewlet · zope.component · zope.processlifetime · zope.testing