ImportError: No module named Cython.Build

[lokesh005]

I have cython already in my system but when I execute sudo pip install . command. Following error pops up

`The directory '/home/lokesh/.cache/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
The directory '/home/lokesh/.cache/pip' or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
Processing /home/lokesh/Desktop/Unsupervised_KeYEx/sent2vec/src
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-8ApShB-build/setup.py", line 2, in <module>
        from Cython.Build import cythonize
    ImportError: No module named Cython.Build

----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-8ApShB-build/

`

My python version is 2.7

[mpagli]

I did not test the wrapper with python 2.7, only with python 3.6. I will try to find some time to investigate this.

[lokesh005]

Thanks @mpagli, the problem is resolved. I uninstalled scikit-learn package and installed it again and now it was working fine.