interface-meta
`interface_meta` provides a convenient way to expose an extensible API with enforced method signatures and consistent documentation.
Decision gist · record as of 2026-08-14
Yes, if you are building an extensible plugin architecture or framework where API consistency, automatic documentation, and registration hooks matter. The zero-dependency design and permissive license make adoption low-risk. The active maintenance and broad Python version support (3.10–3.14) provide confidence in long-term usability. Not necessary for simple single-class hierarchies or projects that don't require enforced API contracts.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.10 or later.
- Low install friction with no runtime dependencies.
- Active maintenance as of 2026-04-30 with support for Python 3.10 through 3.14.
License · maintenance · safety
MIT (permissive) — MIT license permits unrestricted use, modification, and distribution in both open-source and proprietary projects.
last release 2026-04-30 (106 days) · last repo commit 2026-04-30 · 2 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 3,730,989 downloads/mo, #2,511 on PyPI
Alternatives
Verify before relying
from interface_meta import InterfaceMeta, inherit_docs, override
from abc import abstractmethod
class MyInterface(metaclass=InterfaceMeta):
@property
@abstractmethod
def name(self) -> str:
"""The name of this interface."""
class MyImplementation(MyInterface):
@override
@property
def name(self) -> str:
return "example"- Whether the package is actively maintained beyond the 2026-04-30 release date or if that represents a stable final version.
- Practical performance characteristics when used with deeply nested class hierarchies or large plugin registries.
What it is and what it does
InterfaceMeta is a metaclass-based library for building well-structured, extensible plugin systems in Python. It enforces that subclasses conform to their parent's API—including method signatures—while allowing optional additional parameters on overridden methods. The library automatically generates composite docstrings that merge base interface documentation with implementation-specific quirks, making it clear how each subclass extends or modifies the parent behavior.
The package is designed around the idea that subclassing alone should be sufficient to register a plugin and ensure compliance. It supports hierarchical property and method checking, optional explicit override decorators for clarity, and integration with Python's standard ABCMeta. This makes it particularly useful for libraries that expose plugin architectures where consistency and documentation quality are important.
Use it for
- Building a plugin system where subclasses auto-register and must conform to a parent API contract.
- Creating extensible data connector libraries where implementations must follow consistent method signatures.
- Generating unified API documentation that combines base interface specs with implementation-specific behavior notes.
- Enforcing method signature compliance across a hierarchy of abstract and concrete classes at definition time.
- Developing framework-like libraries where third-party developers extend core interfaces with custom implementations.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you are building an extensible plugin architecture or framework where API consistency, automatic documentation, and registration hooks matter.
The zero-dependency design and permissive license make adoption low-risk. The active maintenance and broad Python version support (3.10–3.14) provide confidence in long-term usability. Not necessary for simple single-class hierarchies or projects that don't require enforced API contracts.
Install
interface-meta on PyPI
Before you install
Low install friction with no runtime dependencies. Active maintenance as of 2026-04-30 with support for Python 3.10 through 3.14.
Requires Python 3.10 or later.
License in practice
MIT license permits unrestricted use, modification, and distribution in both open-source and proprietary projects.
Quickstart
from interface_meta import InterfaceMeta, inherit_docs, override
from abc import abstractmethod
class MyInterface(metaclass=InterfaceMeta):
@property
@abstractmethod
def name(self) -> str:
"""The name of this interface."""
class MyImplementation(MyInterface):
@override
@property
def name(self) -> str:
return "example"Verify before relying
- Whether the package is actively maintained beyond the 2026-04-30 release date or if that represents a stable final version.
- Practical performance characteristics when used with deeply nested class hierarchies or large plugin registries.
Package facts
| License | MIT permissive |
| Python support | Supports the current Python release >=3.10 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | None |
| Maintenance | Actively maintained 106 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 3,730,989 / month, #2,511 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 :: ConsoleIntended Audience :: DevelopersProgramming Language :: Python :: 3Programming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.14 |
Evidence: interface_meta-2.0.1-py3-none-any.whl
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See also python-interface · overrides · robotcode-plugin · pluggy · overloading · docstring-inheritance · autogen-ext · snakemake-interface-common · ExtensionClass