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
这里和其他地方的解决方案都不适合我。我的64位Windows 10操作系统上安装了一个不兼容的32位版本的mysqlclient，因为我使用的是32位版本的Python。
我不得不卸载我目前的Python 3.7 32位，并重新安装Python 3.7 64位，现在一切都很好。
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>.
我也面临着同样的问题。下面的方法对我很有效:
根据系统上安装的Python版本，从Christoph Gohlke安装程序站点下载非官方二进制文件。
导航到安装文件的文件夹并运行
pip install filename
python_ldap - 3.0.0 - cp35 - cp35m - win_amd64。我的机器是64位，Python版本是3.5。
这成功地在我的Windows机器上安装了python-ldap。您可以对mysql-python尝试同样的方法。
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
正如其他回复所指出的，一个解决方案是安装Visual Studio 2015。但是，它会占用几gb的磁盘空间。
一种解决方法是安装预编译的二进制文件。Python扩展包的非官方Windows二进制文件(镜像)网页包含许多Python包的预编译二进制文件。下载您感兴趣的软件包后，您可以使用pip install安装它，例如pip install mysqlclient - 1.3.10 - cp35 - cp35m - win_amd64.whl。
要扩展ocean800、davidsheldon和user3661384的答案:
你现在应该不再使用Visual Studio Tools 2015，因为有一个更新的版本可用。正如Python文档所指出的，您应该使用Visual Studio Tools 2017。
Visual c++ Build Tools 2015由微软升级为Visual Studio Build Tools 2017。
从这里下载。
您还需要setuptools。如果你没有安装工具，运行:
pip install setuptools
或者如果你已经有了，一定要升级它。
pip install setuptools --upgrade
对于上面的Python文档链接，您将看到setuptools版本必须至少为34.4.0才能使Visual Studio工具工作。
