154 lines
6.5 KiB
Plaintext
154 lines
6.5 KiB
Plaintext
Metadata-Version: 2.4
|
|
Name: Cython
|
|
Version: 3.2.1
|
|
Summary: The Cython compiler for writing C extensions in the Python language.
|
|
Home-page: https://cython.org/
|
|
Author: Robert Bradshaw, Stefan Behnel, David Woods, Greg Ewing, et al.
|
|
Author-email: cython-devel@python.org
|
|
License: Apache-2.0
|
|
Project-URL: Documentation, https://cython.readthedocs.io/
|
|
Project-URL: Donate, https://cython.readthedocs.io/en/latest/src/donating.html
|
|
Project-URL: Source Code, https://github.com/cython/cython
|
|
Project-URL: Bug Tracker, https://github.com/cython/cython/issues/
|
|
Project-URL: User Group, https://groups.google.com/g/cython-users
|
|
Classifier: Development Status :: 5 - Production/Stable
|
|
Classifier: Intended Audience :: Developers
|
|
Classifier: License :: OSI Approved :: Apache Software License
|
|
Classifier: Operating System :: OS Independent
|
|
Classifier: Programming Language :: Python
|
|
Classifier: Programming Language :: Python :: 3
|
|
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
|
|
Classifier: Programming Language :: Python :: 3.13
|
|
Classifier: Programming Language :: Python :: 3.14
|
|
Classifier: Programming Language :: Python :: Implementation :: CPython
|
|
Classifier: Programming Language :: Python :: Implementation :: PyPy
|
|
Classifier: Programming Language :: Python :: Implementation :: Stackless
|
|
Classifier: Programming Language :: C
|
|
Classifier: Programming Language :: C++
|
|
Classifier: Programming Language :: Cython
|
|
Classifier: Topic :: Software Development :: Code Generators
|
|
Classifier: Topic :: Software Development :: Compilers
|
|
Classifier: Topic :: Software Development :: Libraries :: Python Modules
|
|
Classifier: Typing :: Typed
|
|
Requires-Python: >=3.8
|
|
Description-Content-Type: text/x-rst
|
|
Dynamic: author
|
|
Dynamic: author-email
|
|
Dynamic: classifier
|
|
Dynamic: description
|
|
Dynamic: description-content-type
|
|
Dynamic: home-page
|
|
Dynamic: license
|
|
Dynamic: project-url
|
|
Dynamic: requires-python
|
|
Dynamic: summary
|
|
|
|
The Cython language makes writing C extensions for the Python language as
|
|
easy as Python itself. Cython is a source code translator based on Pyrex_,
|
|
but supports more cutting edge functionality and optimizations.
|
|
|
|
The Cython language is a superset of the Python language (almost all Python
|
|
code is also valid Cython code), but Cython additionally supports optional
|
|
static typing to natively call C functions, operate with C++ classes and
|
|
declare fast C types on variables and class attributes. This allows the
|
|
compiler to generate very efficient C code from Cython code.
|
|
|
|
This makes Cython the ideal language for writing glue code for external
|
|
C/C++ libraries, and for fast C modules that speed up the execution of
|
|
Python code.
|
|
|
|
The newest Cython release can always be downloaded from https://cython.org/.
|
|
Unpack the tarball or zip file, enter the directory, and then run::
|
|
|
|
pip install .
|
|
|
|
Note that for one-time builds, e.g. for CI/testing, on platforms that are not
|
|
covered by one of the wheel packages provided on PyPI *and* the pure Python wheel
|
|
that we provide is not used, it is substantially faster than a full source build
|
|
to install an uncompiled (slower) version of Cython with::
|
|
|
|
NO_CYTHON_COMPILE=true pip install .
|
|
|
|
.. _Pyrex: https://www.cosc.canterbury.ac.nz/greg.ewing/python/Pyrex/
|
|
|
|
3.2.1 (2025-11-12)
|
|
==================
|
|
|
|
Features added
|
|
--------------
|
|
|
|
* Cython now leaves markers about its utility code dependencies in the generated C code
|
|
to help debugging "unused function" C compiler warnings.
|
|
(Github issue https://github.com/cython/cython/issues/7294)
|
|
|
|
Bugs fixed
|
|
----------
|
|
|
|
* Relative imports could fail if the shared utility module is used.
|
|
This bug was introduces in Cython 3.2.0.
|
|
(Github issue https://github.com/cython/cython/issues/7290)
|
|
|
|
* Under lock congestion, acquiring the GIL could crash in Python 3.11.
|
|
This bug was introduces in Cython 3.2.0.
|
|
(Github issue https://github.com/cython/cython/issues/7312)
|
|
|
|
* Using the shared utility module left an unused C function in user modules with memoryviews.
|
|
To make debugging this kind of issue easier, Cython now leaves "used by …" markers in the
|
|
generated C files that indicate why a specific piece of utility code was included.
|
|
This bug was introduces in Cython 3.2.0.
|
|
(Github issue https://github.com/cython/cython/issues/7293)
|
|
|
|
* Code using the pre-import scope failed with an undefined name.
|
|
This bug was introduces in Cython 3.2.0.
|
|
(Github issue https://github.com/cython/cython/issues/7304)
|
|
|
|
* Includes all fixes as of Cython 3.1.7.
|
|
|
|
3.1.7 (2025-11-12):
|
|
|
|
* Unicode characters formatted from C integers with padding, as in ``f"{value:XXc}"``,
|
|
could result in invalid Python string objects since Cython 3.1.0.
|
|
Also, lone surrogates failed to format in this way.
|
|
(Github issue https://github.com/cython/cython/issues/7298)
|
|
|
|
* Assigning nested structs from a list of structs (item by item) could crash Cython.
|
|
(Github issue https://github.com/cython/cython/issues/7308)
|
|
|
|
* Cython incorrectly called ``PyList_GetItemRef()`` in PyPy and GraalPython before Py3.13.
|
|
(Github issue https://github.com/cython/cython/issues/7269)
|
|
|
|
* Trying to instantiate internal types used by Cython is now prohibited.
|
|
(Github issue https://github.com/cython/cython/issues/7263)
|
|
|
|
3.1.6 (2025-10-23):
|
|
|
|
* Unicode characters formatted from C integers with ``f"{value:c}"`` could result in
|
|
invalid Python string objects since Cython 3.1.0.
|
|
(Github issue https://github.com/cython/cython/issues/7240)
|
|
|
|
* ``cythonize`` (program and function) now uses ``concurrent.futures.ProcessPoolExecutor``
|
|
instead of ``multiprocessing.Pool`` to fix a hang on build failures in parallel builds.
|
|
A possible work-around is to disable parallel builds.
|
|
Patch by Sviatoslav Sydorenko. (Github issue https://github.com/cython/cython/issues/7183)
|
|
|
|
3.1.5 (2025-10-20):
|
|
|
|
* Conversion from C++ strings longer than ``PY_SSIZE_T_MAX`` did not validate the length.
|
|
|
|
* Some non-Limited API code was incorrectly used in generated header files.
|
|
(Github issue https://github.com/cython/cython/issues/7157)
|
|
|
|
* Optimised unpacking of Python integers in expressions uses a slightly safer scheme.
|
|
(Github issue https://github.com/cython/cython/issues/7134)
|
|
|
|
* Empty return statements were not always reported when tracing.
|
|
(Github issue https://github.com/cython/cython/issues/7022)
|
|
|
|
* Value conversion errors when tracing C return statements no longer fail the trace
|
|
but fall back to reporting ``None`` returns instead.
|
|
(Github issue https://github.com/cython/cython/issues/6503)
|