python pip安装报错【error: Microsoft Visual C?报错

最近在windows下用pip安装superset时，报如下错误：

    running build_ext
    building 'sasl.saslwrapper' extension
    error: Microsoft Visual C++ 10.0 is required. Get it with "Microsoft Windows
 SDK 7.1": www.microsoft.com/download/details.aspx?id=8279

    ----------------------------------------
Command ""d:\program files\python34\python.exe" -u -c "import setuptools, tokeni
ze;file='C:\Users\dba2bar\AppData\Local\Temp\2\pip-build-o4g7qomx\sa
sl\setup.py';f=getattr(tokenize, 'open', open)(file);code=f.read().replace(
'\r\n', '\n');f.close();exec(compile(code, file, 'exec'))" install --record
C:\Users\dba2bar\AppData\Local\Temp\2\pip-knwyb00k-record\install-record.txt --s
ingle-version-externally-managed --compile" failed with error code 1 in C:\Users
\dba2bar\AppData\Local\Temp\2\pip-build-o4g7qomx\sasl<br>
在根据提示成功安装SDK 7.1后，再次尝试安装，却仍然报同一错误，卸载后重新安装仍然如此，不知道哪位大大有同样的遭遇，可以提点下？谢谢！