Resolving Python Compiling Errors

Errors may occur if you compile the Python package from the source code.

The following error may occur if the Python package presumes Microsoft Visual Studio 2015 should be used on a Windows machine.

building 'lxml.etree' extension
error: Microsoft Visual C++ 15.0 is required (Unable to find vcvarsall.bat).

If you have other versions of Visual Studio installed, you can bypass the error by redefining the environment variable VS100COMNTOOLS

set VS100COMNTOOLS=%VS140COMNTOOLS%