Python Forum

cannot display Hello on cython

file: set.py

from distutils.core import setup
from Cython.Build import cythonize
import temp

compiler_directives = {
    'language_level': 2,
    'optimize.use_switch': True,
    'profile': True,
}

setup(
    packages=["XXXXXX"],
    ext_modules=cythonize("temp.pyx",
       # module_list="temp.pxd", #pyx
        #compiler_directives=compiler_directives,
    )
)

file temp.pyx

cdef class Temp1:
                
                cdef void as(self):
                                print("Hello")
Temp1.as()

as is a keyword in python. This may be the cause of the error. Can't you rename the method?

fixed as on pprr

file: set.py

from distutils.core import setup
from Cython.Build import cythonize
import temp

print("y")

compiler_directives = {
    'language_level': 2,
    'optimize.use_switch': True,
    'profile': True,
}
 
setup(
    packages=["XXXXXX"],
    ext_modules=cythonize("temp.pyx",
       # module_list="temp.pxd", #pyx
        #compiler_directives=compiler_directives,
    )
)

file temp.pyx

from time import *
#cimport ctemp

cdef class Temp1:
                
                cdef void pprr(self):
                                print("rr")

cdef Temp1 p1
p1=Temp1()
p1.pprr()
print("Hello World")

after starting set.py the program outputs the following---------------------------------------------------------------

Output:
=========== RESTART: I:\Питон\ПРОГРАМЫ PYTHON\Новая папка\setup.py ===========
Hello World
y
Compiling temp.pyx because it changed.
[1/1] Cythonizing temp.pyx
>>> 

It is not clear why does not display print("rr") --------------------------------------------------------

Normally you don't import the module in 'setup.py'. Removing the 'import temp', here is my output in a linux terminal

Output:
λ python setup.py build_ext --inplace
Compiling temp.pyx because it changed.
[1/1] Cythonizing temp.pyx
running build_ext
building 'temp' extension
creating build
creating build/temp.linux-x86_64-2.7
x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -Wdate-time -D_FORTIFY_SOURCE=2 -g -fstack-protector-strong -Wformat -Werror=format-security -fPIC -I/usr/include/python2.7 -c temp.c -o build/temp.linux-x86_64-2.7/temp.o
x86_64-linux-gnu-gcc -pthread -shared -Wl,-O1 -Wl,-Bsymbolic-functions -Wl,-Bsymbolic-functions -Wl,-z,relro -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -Wdate-time -D_FORTIFY_SOURCE=2 -g -fstack-protector-strong -Wformat -Werror=format-security -Wl,-Bsymbolic-functions -Wl,-z,relro -Wdate-time -D_FORTIFY_SOURCE=2 -g -fstack-protector-strong -Wformat -Werror=format-security build/temp.linux-x86_64-2.7/temp.o -o /home/eric/Projets/Scratch/2018-12/cytruc/temp.so
λ ls
build  setup.py  temp.c  temp.pyx  temp.so
λ python -c "import temp"
rr
Hello World

this command starts python temp.pyx build_ext --inplace
starting from the console results in the following

Output:
Traceback (most recent call last):
  File "<pyshell#1>", line 1, in <module>
    temp.pyx
AttributeError: module 'temp' has no attribute 'pyx'

once no more answers, I will try to make himself