cython

问题 I would like to compile a python3 package into a distributable binary form (without sourcecode) from within the x64 Native Tools Command Prompt for VS 2019 using python 3.6 (64bit). However, i have problems specifying the correct paths to the files the package should contain. The produced folder structure in the site-packages directory is all wrong and not what i expect from my source folder structure and my setup.py . It seems for me that the modules from the top level package are treated

问题 I would like to compile a python3 package into a distributable binary form (without sourcecode) from within the x64 Native Tools Command Prompt for VS 2019 using python 3.6 (64bit). However, i have problems specifying the correct paths to the files the package should contain. The produced folder structure in the site-packages directory is all wrong and not what i expect from my source folder structure and my setup.py . It seems for me that the modules from the top level package are treated

问题 I'm trying to run this code : from distutils.core import setup from distutils.extension import Extension from Cython.Distutils import build_ext ext_modules = [ Extension("sum", ["a123.pyx"])] setup( name = 'app', cmdclass = {'build_ext': build_ext}, ext_modules = ext_modules ) and I got this Error : Traceback (most recent call last): File "compile.py", line 3, in <module> from Cython.Distutils import build_ext ImportError: No module named 'Cython' I'm using Conda and I add cython to it also I

问题 I'm trying to run this code : from distutils.core import setup from distutils.extension import Extension from Cython.Distutils import build_ext ext_modules = [ Extension("sum", ["a123.pyx"])] setup( name = 'app', cmdclass = {'build_ext': build_ext}, ext_modules = ext_modules ) and I got this Error : Traceback (most recent call last): File "compile.py", line 3, in <module> from Cython.Distutils import build_ext ImportError: No module named 'Cython' I'm using Conda and I add cython to it also I

问题 I have a very weird problem while creating a Python extension with Cython that uses joblib.Parallel . The following code works as expected: from joblib import Parallel, delayed from math import sqrt print(Parallel(n_jobs=4)(delayed(sqrt)(x) for x in range(4))) The following code hangs forever: from joblib import Parallel, delayed def mult(x): return x*3 print(Parallel(n_jobs=4)(delayed(mult)(x) for x in range(4))) I have no clues why. I use the following setup.py : from distutils.core import

问题 I have a very weird problem while creating a Python extension with Cython that uses joblib.Parallel . The following code works as expected: from joblib import Parallel, delayed from math import sqrt print(Parallel(n_jobs=4)(delayed(sqrt)(x) for x in range(4))) The following code hangs forever: from joblib import Parallel, delayed def mult(x): return x*3 print(Parallel(n_jobs=4)(delayed(mult)(x) for x in range(4))) I have no clues why. I use the following setup.py : from distutils.core import

问题 I've got some C++ code dbscan.cpp and dbscan.h that work great standalone. Now I'm trying to wrap it in Cython. I'm not sure how to do this correctly, and I'm impeded by limited knowledge about compilers and linkers and libraries and makefiles. Here's PyDBSCAN_lib.pyx : # distutils: language = c++ # distutils: sources = dbscan.cpp from libcpp.vector cimport vector from libcpp.string cimport string from libcpp cimport bool cdef extern from "dbscan.h": cdef cppclass DBSCAN: #DBSCAN(int minPts,

问题 I've got some C++ code dbscan.cpp and dbscan.h that work great standalone. Now I'm trying to wrap it in Cython. I'm not sure how to do this correctly, and I'm impeded by limited knowledge about compilers and linkers and libraries and makefiles. Here's PyDBSCAN_lib.pyx : # distutils: language = c++ # distutils: sources = dbscan.cpp from libcpp.vector cimport vector from libcpp.string cimport string from libcpp cimport bool cdef extern from "dbscan.h": cdef cppclass DBSCAN: #DBSCAN(int minPts,

问题 I have the following simple Cython function for a parallel reduction: # cython: boundscheck = False # cython: initializedcheck = False # cython: wraparound = False # cython: cdivision = True # cython: language_level = 3 from cython.parallel import parallel, prange cpdef double simple_reduction(int n, int num_threads): cdef int i cdef int sum = 0 for i in prange(n, nogil=True, num_threads=num_threads): sum += 1 return sum Which horrifyingly returns the following: In [3]: simple_reduction(n=10,

问题 I have the following simple Cython function for a parallel reduction: # cython: boundscheck = False # cython: initializedcheck = False # cython: wraparound = False # cython: cdivision = True # cython: language_level = 3 from cython.parallel import parallel, prange cpdef double simple_reduction(int n, int num_threads): cdef int i cdef int sum = 0 for i in prange(n, nogil=True, num_threads=num_threads): sum += 1 return sum Which horrifyingly returns the following: In [3]: simple_reduction(n=10,