An error
When installing APpium with NPM under Win10, the following error is reported:

Can't find Python executable "D:\Anaconda3\python.exe", you can set the PYTHON env variable.

solution
1. Set the Python execution file path. 2, to use python version 2.7.
Methods a
Set the global variable in Windows PYTHON to be the absolute path of PYTHON 2.7, for example:

D:\Anaconda2\python.exe

Set variables:

set PYTHONPATH=%PYTHON%

Method 2

npm config