Cython C++ Cache - How to Clear

Question

I am running a Jupyter notebook on a remote server. Part of this notebook calls a Cython .pyx file cython_file which contains a c++ function definition called cpp_function and is called from the notebook like this:

from clibs.cython_file import cpp_function

Inside the .pyx file I am calling a c++ header file cpp_file.h like this:

cdef extern from "/home/user/cpp_file.h":

Inside this header file I have the function as defined in cython which, for argument sake, is just a simple logic function.

My issue is this; sometimes when I change the .h c++ file and restart the notebook kernel and re-run the code, nothing changes. It still uses the old version of the .h file. As if it's being cached somewhere.

I have deleted all .pyxbldc and .pyc files before restarting the kernel to no avail.

My .pyxbld file looks like this:

def make_ext(modname, pyxfilename):
    from distutils.extension import Extension
    return Extension(name=modname,
                     sources=[pyxfilename], extra_compile_args=['-fopenmp', '-w'], extra_link_args=['-fopenmp'], language='c++')

Any ideas on how to stop the c++ file from being cached?!

Answer 1

!rm -rf ~/.cache/ipython/cython