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NameError: name ‘_mysql‘ is not defined python

出现上述报错的原因是：

Mysqldb 不兼容 python3.5 以后的版本

解决办法：

使用pymysql代替MySQLdb

步骤：

安装pymysql：pip install pymysql

vi编辑项目中setting.py所在目录下的__init.py,或直接

stdarg.h中的内容（那三个函数的用法）#ifSTDC#defineCdecl#else#defineCdeclcdecl#endif#if!defined(STDARG)#defineSTDARGtypedefvoid*valist;#definevastart( 其他

ist;#define va

数学上well-defined是什么意思谢谢英语

数学分析里“well-defined”的意思.以及如何证明一个函数是“well-defined”的.后者只用告诉基本的通用步骤及思路即可.谢谢. 数学

一道GMAT数学题,求高人指教.For a finite sequence of nonzero numbers,the number of variations in sign is defined as the number of pairs of consecu 英语

ive terms of t

ForWhichofthefollowingfunctionsistheinversenotdefined?defined在这里如何理解英语

Which two statements best describe the wireless security standard that is defined by WPA (Choose two.)()。

A.It specifies use of a static encryption key that must be changed frequently to enhance securityB.It requires use of an open authentication methodC.

The( )Process Group consists of the processes used to complete the work defined in the p

The（）Process Group consists of the processes used to complete the work defined in the project management plan to accomplish the project’s requiremen

英语翻译求解!The "ambiguous symbol" error occurs when a smart pointer interface definition such as IXMLDOMDocumentPtr is defined in both the 英语

MSXML2 namespa

求说说这段话意思 If I just stay in a narrowly-defined academic niche,my writing will be confined to papers for scholarly publication and grant 英语

.Those take ti

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