======================================== PyPy v7.3.7: bug-fix release of 3.7, 3.8 ======================================== We are releasing a PyPy 7.3.7 to fix the recent 7.3.6 release's binary incompatibility with the previous 7.3.x releases. We mistakenly added fields to ``PyFrameObject`` and ``PyDateTime_CAPI`` that broke the promise of binary compatibility, which means that c-extension wheels compiled for 7.3.5 will not work with 7.3.6 and via-versa. Please do not use 7.3.6. We have added a cursory test for binary API breakage to the https://github.com/pypy/binary-testing repo which hopefully will prevent such mistakes in the future. Additionally, a few smaller bugs were fixed: - Use ``uint`` for the ``request`` argument of ``fcntl.ioctl`` (issue 3568_) - Fix incorrect tracing of `while True`` body in 3.8 (issue 3577_) - Properly close resources when using a ``conncurrent.futures.ProcessPool`` (issue 3317_) - Fix the value of ``LIBDIR`` in ``_sysconfigdata`` in 3.8 (issue 3582_) You can find links to download the v7.3.7 releases here: https://pypy.org/download.html We would like to thank our donors for the continued support of the PyPy project. If PyPy is not quite good enough for your needs, we are available for direct consulting work. If PyPy is helping you out, we would love to hear about it and encourage submissions to our `blog site`_ via a pull request to https://github.com/pypy/pypy.org We would also like to thank our contributors and encourage new people to join the project. PyPy has many layers and we need help with all of them: `PyPy`_ and `RPython`_ documentation improvements, tweaking popular modules to run on PyPy, or general `help`_ with making RPython's JIT even better. If you are a python library maintainer and use C-extensions, please consider making a CFFI_ / cppyy_ version of your library that would be performant on PyPy. In any case both `cibuildwheel`_ and the `multibuild system`_ support building wheels for PyPy. .. _`PyPy`: index.html .. _`RPython`: https://rpython.readthedocs.org .. _`help`: project-ideas.html .. _CFFI: https://cffi.readthedocs.io .. _cppyy: https://cppyy.readthedocs.io .. _`multibuild system`: https://github.com/matthew-brett/multibuild .. _`cibuildwheel`: https://github.com/joerick/cibuildwheel .. _`blog site`: https://pypy.org/blog What is PyPy? ============= PyPy is a Python interpreter, a drop-in replacement for CPython 2.7, 3.7, and 3.8. It's fast (`PyPy and CPython 3.7.4`_ performance comparison) due to its integrated tracing JIT compiler. We also welcome developers of other `dynamic languages`_ to see what RPython can do for them. This PyPy release supports: * **x86** machines on most common operating systems (Linux 32/64 bits, Mac OS X 64 bits, Windows 64 bits, OpenBSD, FreeBSD) * 64-bit **ARM** machines running Linux. * **s390x** running Linux PyPy does support ARM 32 bit and PPC64 processors, but does not release binaries. .. _`PyPy and CPython 3.7.4`: https://speed.pypy.org .. _`dynamic languages`: https://rpython.readthedocs.io/en/latest/examples.html .. _3568: https://foss.heptapod.net/pypy/pypy/-/issues/3568 .. _3577: https://foss.heptapod.net/pypy/pypy/-/issues/3577 .. _3317: https://foss.heptapod.net/pypy/pypy/-/issues/3317 .. _3582: https://foss.heptapod.net/pypy/pypy/-/issues/3582