Encountered a problem — Python — Python 3 uses Sqlalchemy to report an error‘

situation   follow the instructions in the flash Sqlalchemy document to configure the  
SQLALCHEMY_ DATABASE_ URI = ‘ mysql://username:password@server/db ‘  
1  
after operation, MySQL reports an error importerror: no module named ‘MySQL db’.  
why  
since there is no MySQL DB module, follow the normal idea  
pip install MySQLdb  
1  
it should be able to solve this problem, but no corresponding module can be found. After checking, this is because mysql-3.23 through 5.5 and python-2.4 through 2.7 are currently supported.  
solutions  
looking for alternatives  
in Python 3, we generally use pymysql.  
implementation  
pip install PyMySQL
1  
change the database connection to  
mysql+ pymysql://username:password@server/db
1  
the next operation is normal original link: https://blog.csdn.net/zzq900503/article/details/89096311

Read More: