ImportError: No module named Cython.Distutils

Question

I\'m having a strange problem while trying to install the Python library zenlib, using its setup.py file. When I run the setup.py file

Answer 1

I had dependency from third party library on Cython, didn't manage to build the project on Travis due to the ImportError. In case someone needs it - before installing requirements.txt run this command:

pip install Cython --install-option="--no-cython-compile"

Installing GCC also might help.

Answer 2

In the CLI-python, import sys and look what's inside sys.path
Then try to use export PYTHONPATH=whatyougot

Answer 3

That is easy.

You could try install cython package first.

It will upgrade your easy_install built in python.

Answer 4

Running the following commands resolved the issue for me in ubuntu 14.04:

sudo apt-get install python-dev    
sudo apt-get install libusb-1.0-0-dev
sudo apt-get install libsystemd-daemon-dev
sudo pip install cython

This link helped me: https://github.com/trezor/python-trezor/issues/40

Answer 5

Read like a thousand of these threads and finally got it for Python 3. (replace pip with pip3 if you have that kind of installation, and run pip uninstall cython if you have tried other solutions before running any of these)

Mac:

brew install cython
pip install --upgrade cython

Ubuntu

sudo apt-get install cython3 python-dev  
pip install --upgrade cython

Windows (must have conda, and MinGW already in path)

conda install cython
conda install --upgrade cython

Answer 6

Just install Cython from http://cython.org/#download and install it using this command

sudo python setup.py install

Then run the command

sudo python -c 'import Cython.Distutils'

and it will be installed and the error message will disappear.