Hi everyone, I'm pleased to announce the immediate availability of Cython 0.28, after almost half a year of development. https://pypi.python.org/pypi/Cython/0.28 What is Cython? Cython is a widely used and production proven optimising static compiler for both the Python programming language and the extended Cython programming language, and one of the pillars of the high-performance Python ecosystem. It provides direct access to C/C++ libraries and data types as a language feature, and makes writing fast native C extensions for Python as easy as Python itself. The major new features in 0.28 include: * Cdef classes can now multiply inherit from ordinary Python classes, as long as (exactly) one base class is an extension type. * The "const" modifier can be applied to memoryview declarations to allow read-only buffers as input. * C code in the docstring of a "cdef extern" block is copied verbatimly into the generated file. The changelog lists the various other big and small features, optimisations and bug fixes that went into this release: https://github.com/cython/cython/blob/0.28/CHANGES.rst Have fun, Stefan