Error: unable to find vcvarsall Solutions to bat errors

Here mine VS The version is 2017

here error: Unable to find vcvarsall.bat This line reports errors in python In the environment \Lib\distutils Medium _msvccompiler.py Document No 120-130 About a piece of code output , as follows ：

After reading the code, I found that the reason was that the method written in the code could not be found vcvarsall.bat The location of

That's easy to do , We told him directly vcvarsall.bat The location of the is not on the line ！

Directly in _find_vcvarsall(plat_spec) The third line in the method vcvarsall.bat The path of the folder is assigned to best_dir, Pictured , My is VS2017,vcvarsall.bat stay D:\VS2017\VC\Auxiliary\Build Next

preservation , Restart the command line , Re input python setup.py build_ext --inplace that will do