Orginal version by chokkan. New version (compiles under macOS) from here

Windows/Anaconda/VisualStudio specific steps:

1. Make sure that iconv is available to your desired conda environment: conda install -c conda-forge libiconv
2. Then, open a Visual Studio Developer Prompt (e.g. “VS 2015 x64 Developer Command Prompt” or “VS 2015 x86 Developer Command Prompt”)
3. Now you can any of these commands to build or install: python setup.py build && python setup.py install
4. NOTE: If there is a failure that rc.exe cannot be found, add the appropriate WindowKits binary path to PATH. More info on this here.