我已经安装了Python 3.5，并且正在运行
pip install mysql-python
它给出了如下错误
错误:Microsoft Visual c++ 14.0是必需的(无法找到vcvarsall.bat)
我已经添加了以下行到我的路径
C:\Program Files\Python 3.5\Scripts\;
C:\Program Files\Python 3.5\;
C:\Windows\System32;
C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC;
C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC
我的电脑上安装了64位的Windows 7。
什么解决方案可以减少这个错误，并通过pip正确安装模块。
当前回答
要解决以下任何错误:
misaka的车轮建造失败 建造misaka失败 需要Microsoft Visual c++ 14.0 无法找到vcvarsall.bat
解决方案是:
Go to Build Tools for Visual Studio 2017 Select free download under Visual Studio Community 2017. This will download the installer. Run the installer. Select what you need under workload tab: a. Under Windows, there are three choices. Only check Desktop development with C++. b. Under Web & Cloud, there are seven choices. Only check Python development (I believe this is optional, but I have done it). In cmd, type pip3 install misaka. Note if you already installed Visual Studio then when you run the installer, you can modify yours (click modify button under Visual Studio Community 2017) and do steps 3 and 4. Final note: If you don't want to install all modules, having the three below (or a newer version of the VC++ 2017) would be sufficient. (You can also install the Visual Studio Build Tools with only these options, so you don’t need to install Visual Studio Community Edition itself) => This minimal install is already a 4.5 GB, so saving off anything is helpful
其他回答
我在安装mayavi时遇到了这个问题。
我还犯了一个常见错误:在pip安装库时需要Microsoft Visual c++ 14.0。
在浏览了许多网页和这个问题的解决方案后，没有一个可行，我想出了这些步骤(大部分取自以前的解决方案)可以让这个问题起作用。
Go to Build Tools for Visual Studio 2017 and install Build Tools for Visual Studio 2017. Which is under All downloads (scroll down) → Tools for Visual Studio 2017 If you have already installed this, skip to 2. Select the C++ components you require (I didn't know which I required, so I installed many of them). If you have already installed Build Tools for Visual Studio 2017 then open the application Visual Studio Installer then go to Visual Studio Build Tools 2017 → Modify → Individual Components and selected the required components. From other answers, important components appear to be: C++/CLI support, VC++ 2017 version <...> latest, Visual C++ 2017 Redistributable Update, Visual C++ tools for CMake, Windows 10 SDK <...> for Desktop C++, Visual C++ Build Tools core features, Visual Studio C++ core features. Install/Modify these components for Visual Studio Build Tools 2017. This is the important step. Open the application Visual Studio Installer then go to Visual Studio Build Tools → Launch. Which will open a CMD window at the correct location for Microsoft Visual Studio\YYYY\BuildTools. Now enter python -m pip install --upgrade setuptools within this CMD window. Finally, in this same CMD window, pip install your Python library: pip install -U <library>.
我也有同样的问题。我需要一个64位版本的Python，所以我安装了3.5.0(撰写本文时最新的版本)。切换到3.4.3之后，我的所有模块安装都正常了。
Python Windows版本
我尝试了以上所有的方法，没有一个奏效。就在注册这个漏洞之前，我发现了另一个错误的原因:在Windows上使用了错误的shell。
Conda init cmd.exe
帮我搞定了。希望它也能拯救其他人。
我也有同样的问题。下载Visual Studio 2017的构建工具对我有用。
再加上乔杜里的回答:
在我的情况下，我得到了另一个关于lxml的错误如下:
copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\readme.txt -> build\lib.win-amd64-3.7\lxml\isoschematron\resources\xsl\iso-schematron-xslt1
running build_ext
building 'lxml.etree' extension
error: Microsoft Visual C++ 14.0 is required. Get it with "Microsoft Visual C++ Build Tools": http://landinghub.visualstudio.com/visual-cpp-build-tools
我必须安装lxml - 4.2.3 - cp37 - cp37m - win_amd64。与Sushant Chaudhary的回答一样，成功完成Scrapy的安装。
下载lxml 4.2.3——cp37 cp37m——win_amd64。whl来自Lxml 把它放在Python安装的文件夹里 使用PIP Install <file-name>安装它
现在您可以运行pip install scrapy。
