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'pip install flask_mysqldb'失败，并显示错误消息'退出状态2'

[英]'pip install flask_mysqldb' fails with error message 'exit status 2'

原文 2018-02-11 10:34:16 4 2 python/ git

I'm trying to install 'flask_mysqldb' for my backend Python project. 我正在尝试为我的后端Python项目安装'flask_mysqldb'。 I installed Microsoft Visual C++ and the latest supported Visual C++ download from this source: https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads . 我安装了Microsoft Visual C ++，并且从该源安装了最新的受支持的Visual C ++下载： https : //support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads 。

However, when I try to run 'pip install flask_mysqldb' in Git Bash, I get error message: 但是，当我尝试在Git Bash中运行“ pip install flask_mysqldb”时，出现错误消息：

_mysql.c _mysql.c(29) : fatal error C1083: Cannot open include file: 'mysql.h': No such file or directory error: command 'C:\\\\Users\\\\myNAme\\\\AppData\\\\Local\\\\Programs\\\\Common\\\\Microsoft\\\\Visual C++ for Python\\\\9.0\\\\VC\\\\Bin\\\\cl.exe' failed with exit status 2

I have to point that when installing Microsoft Visual C++, the installer runs fine, but I do not get an success (or any other kind of) message when it finishes. 我必须指出，在安装Microsoft Visual C ++时，安装程序运行良好，但完成时未收到成功（或任何其他种类的）消息。 It just dissappears. 它只是消失了。

What could be the cause of the issue? 是什么原因造成的？ Maybe Visual C++ is not installed at all? 也许根本没有安装Visual C ++？ If so, how can I check that? 如果是这样，我该如何检查？

2 个解决方案

Your compiler says: you don't have the requisite headers ( mysql.h ) installed or maybe you do, but they are definitely not on the include path ( -I flags or whatever the cl.exe equivalent is). 您的编译器会说：您没有安装必需的头文件（ mysql.h ），或者也许已经安装了，但是它们绝对不在include路径上（ -I标志或任何cl.exe等效项）。

You will want to revisit the installation instructions for the flask_mysqldb package carefully and make sure you have your environment set up correctly. 您将要仔细地重新flask_mysqldb软件包的安装说明，并确保正确设置了环境。

You also need to install MySQL development libraries . 您还需要安装MySQL开发库。

And you might want to consult also MySQLdb troubleshooting guide . 您可能还需要参考MySQLdb故障排除指南。

MySQLdb is a underlying library used by Flask-MySQLdb. MySQLdb是Flask-MySQLdb使用的基础库。