greenify

status pyversions wheel license

greenify can make Python extension modules having network operations in C code to be compatible with gevent.

greenify uses the Dynamic Function Redirecting technique same as ELF-Hook to patch blocking network operations at runtime, without the need modify the original modules.

Currently greenify only supports ELF format modules, and is tested on Linux.

Install from source

greenify module is installed using setuptools or pip:

python setup.py install

or:

pip install greenify

Usage

Active greenify before initiate environment:
```
import greenify
greenify.greenify()
```
Make sure the dynamic module(e.g. libmemcached) is patched before using:
```
assert greenify.patch_lib('/usr/lib/libmemcached.so')
```
Import and use the corresponding module, which is now gevent compatible.

Thread Safety

Once activated, the green C functions will, on potentially blocking operation, pass control to gevent’s main event loop, which may switch to other ready greenlet which is also in one of the green functions. So, make sure your C code can handle this kind of execution pause and resume. A thread safe program usually is ready for greenify, but remember that all the switches happen in a single thread.

License

greenify is written and maintained by douban and is licensed under New BSD license.

Metadata

Release files for greenify 0.5.0

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for greenify 0.5.0
File	Size	Uploaded
greenify-0.5.0.tar.gz	10.1 kB	Dec 9, 2025	Details

Built distribution (wheel)

Table of built distributions (wheels) for greenify 0.5.0
File	Interpreter	ABI	Platform	Reset
greenify-0.5.0-cp39-abi3-manylinux_2_34_x86_64.whl 153.7 kB Dec 9, 2025	CPython 3.9	abi3	Linux glibc 2.34+ x86-64	Details

Total release size: 163.8 kB

Release files / greenify-0.5.0.tar.gz

Download URL	greenify-0.5.0.tar.gz
Size	10.1 kB
Tags	Source
SHA-256 checksum How to use checksums	`c0c407839e6d9d1974dca3ba91d4b21e4cdda08ac35caebc58a349b646274568`
BLAKE2b-256 checksum How to use checksums	`43a04b9ac3becaa52b1b8c1be4abef4f5f4b4c3cc702669adb94b41d08ce5287`
Upload date	Dec 9, 2025
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/6.1.0 CPython/3.13.7`

Release files / greenify-0.5.0-cp39-abi3-manylinux_2_34_x86_64.whl

Download URL	greenify-0.5.0-cp39-abi3-manylinux_2_34_x86_64.whl
Size	153.7 kB
Tags	CPython 3.9 Linux glibc 2.34+ x86-64 abi3
SHA-256 checksum How to use checksums	`087711c1b24b47ab86bd7ceeaf9a93f4896b4da072bc9a1875c7f206bdf31e55`
BLAKE2b-256 checksum How to use checksums	`742f5159daec5e839630698c53a762b9a0e5dd347a7c5189545e620d8d188dde`
Upload date	Dec 9, 2025
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/6.1.0 CPython/3.13.7`