Python installation Extension "Unable to find Vcvarsall.bat" workaround

Cause:

python3.4 is compiled with msvs2010, so python3.4 can only recognize msvs2010 by default.

python2.7 is compiled with msvs2008, so python2.7 can only recognize msvs2008 by default.

Method One: Install MinGW (not recommended)

Download MinGW environment, add environment variable

or use

python setup.py build –compiler=mingw32

Method Two: install the corresponding version of the MSVs

Python2 Install Msvs2008,python3 installation msvs2010.

Method Three: set the variable

Python2 execution before installing the extension

SET VS90COMNTOOLS =  [vcvarsall.bat所在的目录]

Or

SET VS90COMNTOOLS=%VS120COMNTOOLS%

In the lake to smell the Zhang Note: vs120comntools changed to the version of the MSVS you installed corresponding

Python3 execution before installing the extension

SET VS100COMNTOOLS =  [vcvarsall.bat所在的目录]

Or

SET VS100COMNTOOLS=%VS120COMNTOOLS%

In the lake to smell the Zhang Note: vs120comntools changed to the version of the MSVS you installed corresponding

Method Four: Modify the installation script

Open it

[python3安装目录]Lib/distutils/msvc9compiler.py

To modify the Msvccompiler function:

vc_env = query_vcvarsall(VERSION, plat_spec)

For:

vc_env = query_vcvarsall(12.0, plat_spec)

In the lake to smell the Zhang Note: 12.0 changed to the MSVs you installed the corresponding version number

Add:

msvs2005 version number 8.0 corresponds to the environment variable Vs80comntools

msvs2008 version number 9.0 corresponds to the environment variable Vs90comntools

msvs2010 version number 10.0 corresponds to the environment variable Vs100comntools

msvs2012 version number 11.0 corresponds to the environment variable Vs110comntools

msvs2013 version number 12.0 corresponds to the environment variable Vs120comntools

Python installation Extension "Unable to find Vcvarsall.bat" workaround