I am testing relative imports in Cython to use in my own project, but I can't seem to get it working. I also tried this answer, but still couldn't get it to work.
I am using Cython doc's example, but changing the file structure so that it resembles a package:
.
├── main.py
├── setup.py
└── src
├── landscaping.pyx
├── shrubbing.pxd
└── shrubbing.pyx
The shrubbing.pxd and .pyx files are the same as the docs, but I changed the landscaping.pyx file to use relative imports.
# landscaping.pyx
from . cimport shrubbing
from . import shrubbing
def main():
cdef shrubbing.Shrubbery sh
sh = shrubbing.standard_shrubbery()
print("Shrubbery size is", sh.width, 'x', sh.length)
However, when I run python setup.py:
# setup.py
import sys
sys.argv = ["setup.py", "build_ext", "--inplace"]
from setuptools import setup, Extension
from Cython.Build import cythonize
ext_modules = [
Extension('landscaping', ['src/landscaping.pyx']),
Extension('shrubbing', ['src/shrubbing.pyx']),
]
setup(
ext_modules=cythonize(ext_modules),
include_dirs=['.'],
)
It gives this error:
error compiling Cython file:
------------------------------------------------------------
...
from . cimport shrubbing
^
------------------------------------------------------------
src/landscaping.pyx:1:0: relative cimport beyond main package is not allowed
I've been stuck on this for weeks, trying to change setuptools.setup arguments such as the include_dirs and whatnot, but without success.
Edit 1:
I know the problem is that when compiling, the main package becomes the folder the file being compiled lies in, but my include_dirs is the base directory above src/, so is this a bug or am I missing something?
