安装python包dragnet时出错

Question

  

pip install dragnet

在Windows 7上（我是python的新手）

我无法解决以下错误...（感谢您的帮助）

    mozsci/cspearmanr_by_fast.cc(115) : warning C4267: '=' : conversion from 'si
ze_t' to 'int', possible loss of data
    mozsci/cspearmanr_by_fast.cc(127) : error C3861: 'isnan': identifier not fou
nd
    error: command 'C:\\Users\\vola-g.SAVOIE\\AppData\\Local\\Programs\\Common\\
Microsoft\\Visual C++ for Python\\9.0\\VC\\Bin\\amd64\\cl.exe' failed with exit
status 2

    ----------------------------------------
Command "c:\python27\python.exe -u -c "import setuptools, tokenize;__file__='c:\
\users\\vola-g~1.sav\\appdata\\local\\temp\\pip-build-jz9isn\\mozsci\\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\vola-
g~1.sav\appdata\local\temp\pip-3owhyp-record\install-record.txt --single-version
-externally-managed --compile" failed with error code 1 in c:\users\vola-g~1.sav
\appdata\local\temp\pip-build-jz9isn\mozsci\