I was addicted to trying Cython with PyCharm, so make a note
Overview
Trying to use Cython in PyCharm,
- Basic Tutorial — Cython 0.29a0 documentation
- Easy to build Cython on PyCharm – Nagakute Parabola Diary
After setting setup.py and executing it, referring to
/Users/username/PycharmProjects/cyyc/venv/bin/python3.6 /Users/username/PycharmProjects/cyyc/setup.py build_ext --inplace
Traceback (most recent call last):
File "/Users/username/PycharmProjects/cyyc/setup.py", line 8, in <module>
ext_modules=cythonize("helloworld.pyx")
File "/Users/username/PycharmProjects/cyyc/venv/lib/python3.6/site-packages/Cython/Build/Dependencies.py", line 897, in cythonize
aliases=aliases)
File "/Users/username/PycharmProjects/cyyc/venv/lib/python3.6/site-packages/Cython/Build/Dependencies.py", line 777, in create_extension_list
for file in nonempty(sorted(extended_iglob(filepattern)), "'%s' doesn't match any files" % filepattern):
File "/Users/username/PycharmProjects/cyyc/venv/lib/python3.6/site-packages/Cython/Build/Dependencies.py", line 102, in nonempty
raise ValueError(error_msg)
ValueError: 'helloworld.pyx' doesn't match any files
Process completed with exit code 1
I was told that helloworld.pyx could not be found.
(" Cyyc " is the project name)
environment
macOS High Sierra 10.13.6 PyCharm Professional 2018.2 (Japaneseized with Pleiades) Python3.6 Use virtualenv
What i did
Specify the absolute path
Made the location of the .pyx file an absolute path.
setup.py
from distutils.core import setup
from Cython.Build import cythonize
setup(
ext_modules=cythonize("/Users/username/PycharmProjects/cyyc/helloworld.pyx")
)
It was successful, but this is inconvenient.
Change working directory
Review the settings of external tools.
PyCharm> Preferences> Tools> External Tools
The working directory is / venv / bin by default, but change it to the directory containing the source files.
Here, for the time being, specify the project directory $ Projectpath $ with a macro.
As I noticed later, Referenced site 2 also set it like this.
Restored setup.py.
setup.py
from distutils.core import setup
from Cython.Build import cythonize
setup(
ext_modules=cythonize("helloworld.pyx")
)
When executed, a .so file was generated.
What I noticed
Maybe because the first argument is specified as FilePath in the macro in the external tool settings, if you execute the external tool with a file other than ** setup.py ** open, that file will be the argument Is put in and fails to execute.
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