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
使用Visual c++ 2015 Build Tools的链接。这将安装Visual c++ 14.0而不安装Visual Studio。
其他回答
我只是在使用最新的Python 3.6时遇到了同样的问题。Windows OS 10家庭版和64位操作系统。
解决方法:
通过控制面板卸载任何版本的Visual Studio 安装Visual Studio 2015并选择将安装的默认选项 Visual c++ 14.0 您可以使用PyCharm安装Scrapy:菜单项目→项目解释器→+(安装Scrapy) 通过导入检查REPL和PyCharm中的Scrapy。您应该不会看到任何错误。
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>.
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
安装spaCy模块时也遇到同样的问题。我检查了控制面板，我已经安装了几个Microsoft Visual c++的可重分发版本。
我选择了“Microsoft Visual Studio Community 2015”，它已经安装在我的电脑上→“修改”→勾选“Visual c++ 2015常用工具”。然后需要一些时间和下载超过1gb来安装它。
这解决了我的问题。现在我已经安装了spaCy。
如果你已经安装了Visual Studio Build Tools(如其他评论中所述)，并升级了setuptools，但仍然无法工作:
确保在x86或x64本机工具命令提示符下运行pip。
它可以在Windows开始菜单的VS文件夹下找到。默认的命令行提示符可能不会为Pip提供VS构建工具的路径，就像在我的情况下一样。
