I am trying to install QuantLib Python. So, I followed through and installed:
1) Anaconda3, boost_1_64_0, QuantLib-1.10, QuantLib-SWIG-1.10,swigwin-3.0.12.
2) I installed using Visual Studio 2017, QuantLib. I followed a youtube video and managed to install it correctly and run an example.
3) Then I switched back to the indications in http://quantlib.org/install/windows-python.shtml, I execute the commands:
python setup.py build
LINK : fatal error LNK1104: cannot open file 'QuantLib-vc140-x64-mt.lib'
error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio 14.0\\VC\\BIN\\x86_amd64\\link.exe' failed with exit status 1104
Your paths are correct, but Python is using Visual Studio 2015 (because it's what it was compiled with) and the library you have was produced with Visual Studio 2017. If you use the 2015 version throughout, it should work.