我试图通过两种不同的方式在笔记本电脑上安装pygraphviz：

1）和conda：

conda install -c alubbock pygraphviz.一直下降到

C:\>SET DISTUTILS_USE_SDK=1

C:\>SET MSSdk=1

C:\>SET platform=

C:\>IF /I [AMD64] == [amd64] set "platform=true"

C:\>IF /I [] == [amd64] set "platform=true"

C:\>if defined platform (set "VSREGKEY=HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\microsoft\VisualStudio\14.0" )  ELSE (set "VSREGKEY=HKEY_LOCAL_MACHINE\SOFTWARE\microsoft\VisualStudio\14.0" )

C:\>for /F "skip=2 tokens=2,*" %A in ('reg query "HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\microsoft\VisualStudio\14.0" /v InstallDir') do SET "VSINSTALLDIR=%B"
ERROR: The system was unable to find the specified registry key or value.

C:\>if "" == "" (set "VSINSTALLDIR=" )

C:\>if "" == "" (
ECHO "WARNING: Did not find VS in registry or in VS140COMNTOOLS env var - your compiler may not work"
 GOTO End
)
"WARNING: Did not find VS in registry or in VS140COMNTOOLS env var - your compiler may not work"
The system cannot find the batch label specified - End

2），点子为：pip install pygraphviz

它说要求已经满足，但是在运行我的python代码时出现错误：

ImportError: ('requires pygraphviz ','http://pygraphviz.github.io/')