Gensim needs a C compiler?

Question

Sorry that I don't have enough reputation to post images.

The main problem is that it tells me that I need to install a C compiler and reinstall gensim or the train will be slow, and in fact it is really slow.

I have installed mingw32, Visual Studio 2008, and have added the mingw32 environment variable to my path.

Any ideas on how to solve it?

Answer 1

Just as you I installed mingw32 and added MinGW\bin to my PATH variable. I then uninstalled gensim with pip uninstall gensim and tried reinstalling with pip install gensim. That however gave the same warning so instead I downloaded gensim-0.12.3.tar.gz from here. I unzipped the archive and also the inner one, opened a cmd window in the folder and ran python setup.py install to install gensim. Now I could already from the output see that it could see the MinGW install. It installed correctly and I could run gensim without the warning and much faster.

Answer 2

Similar to user1151923, after adding MinGW\bin to my path variable and uninstalling\reinstalling gensim through pip, I still received the same warning message. I ran the following code to fix this problem (installed gensim from conda).

pip uninstall gensim

conda install gensim