Registry / azure / azurefunctions-extensions-base

azurefunctions-extensions-base

library1.2.0pypypiunverified

Base Python worker extension for Azure Functions, providing infrastructure for building custom extensions. Current version 1.1.0, requires Python >=3.8. Released as part of the Azure Functions Python programming model.

azure

pip install azurefunctions-extensions-base

package ↗homepage ↗

INSTALL

IMPORT

SIG · AZUREFUNCTIONS-EXT

azurefunctions-extensions-base

azurepythonv1.2.0

Install

1.5s avg

Import

—

Disk

16MB

Pass rate

10/ 10

Env Coverage10 / 10

glibc

3.9–3.13

musl

3.9–3.13

Install & Compatibility

Where this runs

tested against v1.2.0 · pip install

no network on importno background threads

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

py 3.10–3.95 runs

installs and imports cleanly · install 0.0s · import 0.000s · 17.9MB

glibc

py 3.10–3.95 runs

installs and imports cleanly · install 1.5s · import 0.000s · 18MB

16MB installed

● package 16MB

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

BaseExtension

✓ from azurefunctions.extensions.base import BaseExtension

✗ from azurefunctions.extensions.base import BaseExtension

Initialize an ExtensionRegistry, define a custom extension by subclassing BaseExtension, and register it.

from azurefunctions.extensions.base import BaseExtension, ExtensionRegistry # Initialize registry registry = ExtensionRegistry() # Define a custom extension class MyExtension(BaseExtension): def __init__(self): super().__init__() # Register extension extension = MyExtension() registry.add_extension(extension) print('Extension registered successfully.')

Debug

Known issues

deprecatedThe V1 programming model (using function.json) is deprecated in favor of the V2 model (using decorators). This extension base is designed for the V2 model.

fix

Migrate to the Azure Functions Python programming model V2 (azure.functions v1.18+).

affects: >=1.0.0

gotchaImporting from 'azurefunctions.extensions' directly without the 'base' submodule will fail. The package structure is not flat.

fix

Always import from 'azurefunctions.extensions.base'.

affects: >=1.0.0

breakingVersion 1.0.0 changed the extension registration API. Previously, extensions were registered via a different method.

fix

Use the new 'ExtensionRegistry.add_extension' method. Refer to the official changelog.

affects: 1.0.0

Upgrade

Version history

1.2.0latest on PyPI · released May 12, 2026

Audit

Dependencies

azure.functionsrequiredRequired for Azure Functions runtime integration.

Agent activity

25 hits · last 30 days

node

OpenAI (training)

Resources

packagehttps://pypi.org/project/azurefunctions-extensions-base/ ↗

homepagehttps://learn.microsoft.com/en-us/azure/azure-functions/functions-reference-python?tabs=asgi%2Capplication-level ↗