python-cffi

python3.10 bdist_wheel did not run successfully when install cffi Question: i installed Ubuntu 22.04 (fresh installation) an create an virtualenv with Python 3.10. The installed packages are as follows: libpython3.10:amd64 libpython3.10-dbg:amd64 libpython3.10-dev:amd64 libpython3.10-minimal:amd64 libpython3.10-stdlib:amd64 python3.10 python3.10-dbg python3.10-dev python3.10-minimal python3.10-venv When I try to install the application requirements file I see this error: pip install cffi==1.14.0 …

Python CFFI enum from string name Question: I have an enum defined in Python cffi. How do I instantiate it by name? The docs say how to get the string name from enum, but not how to create it. ffibuilder = FFI() ffibuilder.cdef(‘typedef enum { dense, sparse } dimension_mode;’) dim = ffibuilder.new(‘dimension_mode’, ‘sparse’) # E …

Installing python library cffi on Windows Question: If I pip install cffi, I get this: building ‘_cffi_backend’ extension c:mingwbingcc.exe -mdll -O -Wall -Ic/libffi_msvc -IC:python27include -IC:python27PC -c c/_cffi_backend.c -o buildtemp.win32-2.7Releasec_cffi_backend.o … (lots of warnings) … c/libffi_msvcwin32.c: In function ‘ffi_call_x86’: c/libffi_msvcwin32.c:48:2: error: ‘_asm’ undeclared (first use in this function) c/libffi_msvcwin32.c:48:2: note: each undeclared identifier is reported only …

How to pass a Numpy array into a cffi function and how to get one back out? Question: I am developing an audio algorithm using Python and Numpy. Now I want to speed up that algorithm by implementing a part of it in C. In the past, I have done this using cython. Now I …