ImportError: No module named 'Cython'
Question:
I’m trying do from Cython.Build import cythonize and I get the message ImportError: No module named 'Cython', but I instaled the Cython with the comand pip install Cython. What’s wrong?
Python 3.5
Cython 0.25.2
Windows 8
Answers:
I reinstalled the Cython with conda and install the Microsoft Visual C++ Build Tools and it works fine.
You can download the the newest Cython release from http://cython.org/ or you can directly download by clicking this link here Unpack the tarball or zip file, enter the directory, and then run:
python setup.py install
just directly install from pypi:
pip install Cython
https://pypi.org/project/Cython/
Use Pip3 command:
pip3 install --upgrade cython
it should be path problem.
go to windows search for python idle
right click idle – open file location
where
right click on python.exe – open file location
if the module not in that location
type cmd and press enter in path
now install module with pip install cython
it will work fine
The problem for me was the pip version. Running python -m pip install pip --upgrade solved the issue.
I personally ran into this problem when I was trying to set up a new virtual environment. I simply installed Cython with python -m pip install Cython and then proceeded to install all the rest of my stuff I needed with python -m pip install -r requirements.txt.
Once it was done, it actually uninstalled Cython for me…
Why? Heck do I know… I ain’t that kind of expert :<
I’m trying do from Cython.Build import cythonize and I get the message ImportError: No module named 'Cython', but I instaled the Cython with the comand pip install Cython. What’s wrong?
Python 3.5
Cython 0.25.2
Windows 8
I reinstalled the Cython with conda and install the Microsoft Visual C++ Build Tools and it works fine.
You can download the the newest Cython release from http://cython.org/ or you can directly download by clicking this link here Unpack the tarball or zip file, enter the directory, and then run:
python setup.py install
just directly install from pypi:
pip install Cython
https://pypi.org/project/Cython/
Use Pip3 command:
pip3 install --upgrade cython
it should be path problem.
go to windows search for python idle
right click idle – open file location
where
right click on python.exe – open file location
if the module not in that location
type cmd and press enter in path
now install module with pip install cython
it will work fine
The problem for me was the pip version. Running python -m pip install pip --upgrade solved the issue.
I personally ran into this problem when I was trying to set up a new virtual environment. I simply installed Cython with python -m pip install Cython and then proceeded to install all the rest of my stuff I needed with python -m pip install -r requirements.txt.
Once it was done, it actually uninstalled Cython for me…
Why? Heck do I know… I ain’t that kind of expert :<