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Metadata-Version: 2.1 Name: pyzmq Version: 25.1.2 Summary: Python bindings for 0MQ Home-page: https://pyzmq.readthedocs.org Author: Brian E. Granger, Min Ragan-Kelley Author-email: zeromq-dev@lists.zeromq.org License: LGPL+BSD Project-URL: Source, https://github.com/zeromq/pyzmq Classifier: Development Status :: 5 - Production/Stable Classifier: Intended Audience :: Developers Classifier: Intended Audience :: Science/Research Classifier: Intended Audience :: System Administrators Classifier: License :: OSI Approved :: GNU Library or Lesser General Public License (LGPL) Classifier: License :: OSI Approved :: BSD License Classifier: Operating System :: MacOS :: MacOS X Classifier: Operating System :: Microsoft :: Windows Classifier: Operating System :: POSIX Classifier: Topic :: System :: Networking Classifier: Programming Language :: Python :: 3 Classifier: Programming Language :: Python :: 3 :: Only Classifier: Programming Language :: Python :: 3.6 Classifier: Programming Language :: Python :: 3.7 Classifier: Programming Language :: Python :: 3.8 Classifier: Programming Language :: Python :: 3.9 Classifier: Programming Language :: Python :: 3.10 Classifier: Programming Language :: Python :: 3.11 Classifier: Programming Language :: Python :: 3.12 Requires-Python: >=3.6 Description-Content-Type: text/markdown License-File: LICENSE.BSD License-File: LICENSE.LESSER License-File: AUTHORS.md Requires-Dist: cffi ; implementation_name == "pypy" # PyZMQ: Python bindings for ØMQ This package contains Python bindings for [ZeroMQ](https://zeromq.org). ØMQ is a lightweight and fast messaging implementation. PyZMQ should work with any reasonable version of Python (≥ 3.4), as well as Python 2.7 and 3.3, as well as PyPy. The Cython backend used by CPython supports libzmq ≥ 2.1.4 (including 3.2.x and 4.x), but the CFFI backend used by PyPy only supports libzmq ≥ 3.2.2 (including 4.x). For a summary of changes to pyzmq, see our [changelog](https://pyzmq.readthedocs.io/en/latest/changelog.html). ### ØMQ 3.x, 4.x PyZMQ fully supports the 3.x and 4.x APIs of libzmq, developed at [zeromq/libzmq](https://github.com/zeromq/libzmq). No code to change, no flags to pass, just build pyzmq against the latest and it should work. PyZMQ does not support the old libzmq 2 API on PyPy. ## Documentation See PyZMQ's Sphinx-generated documentation [on Read the Docs](https://pyzmq.readthedocs.io) for API details, and some notes on Python and Cython development. If you want to learn about using ØMQ in general, the excellent [ØMQ Guide](http://zguide.zeromq.org/py:all) is the place to start, which has a Python version of every example. We also have some information on our [wiki](https://github.com/zeromq/pyzmq/wiki). ## Downloading Unless you specifically want to develop PyZMQ, we recommend downloading the PyZMQ source code or wheels from [PyPI](https://pypi.io/project/pyzmq/), or install with conda. You can also get the latest source code from our GitHub repository, but building from the repository will require that you install recent Cython. ## Building and installation For more detail on building pyzmq, see [our Wiki](https://github.com/zeromq/pyzmq/wiki/Building-and-Installing-PyZMQ). We build wheels for macOS, Windows, and Linux, so you can get a binary on those platforms with: ``` pip install pyzmq ``` but compiling from source with `pip install pyzmq` should work in most environments. Especially on macOS, make sure you are using the latest pip (≥ 8), or it may not find the right wheels. If the wheel doesn't work for some reason, or you want to force pyzmq to be compiled (this is often preferable if you already have libzmq installed and configured the way you want it), you can force installation with: ``` pip install --no-binary=:all: pyzmq ``` When compiling pyzmq (e.g. installing with pip on Linux), it is generally recommended that zeromq be installed separately, via homebrew, apt, yum, etc: ``` # Debian-based sudo apt-get install libzmq3-dev # RHEL-based sudo yum install libzmq3-devel ``` If this is not available, pyzmq will _try_ to build libzmq as a Python Extension, though this is not guaranteed to work. Building pyzmq from the git repo (including release tags on GitHub) requires Cython. ## Old versions pyzmq 16 drops support Python 2.6 and 3.2. If you need to use one of those Python versions, you can pin your pyzmq version to before 16: ``` pip install 'pyzmq<16' ``` For libzmq 2.0.x, use 'pyzmq\<2.1' pyzmq-2.1.11 was the last version of pyzmq to support Python 2.5, and pyzmq ≥ 2.2.0 requires Python ≥ 2.6. pyzmq-13.0.0 introduces PyPy support via CFFI, which only supports libzmq-3.2.2 and newer. PyZMQ releases ≤ 2.2.0 matched libzmq versioning, but this is no longer the case, starting with PyZMQ 13.0.0 (it was the thirteenth release, so why not?). PyZMQ ≥ 13.0 follows semantic versioning conventions accounting only for PyZMQ itself.