supertree_l的博客

ERROR in server: Could not determine join condition between parent/child tables on relationship TestUser.tasks - there are multiple foreign key paths linking the tables. Specify the 'foreign_keys' ar...

sqlalchemy.exc.InternalError: (pymysql.err.InternalError) (1832, "Cannot change column 'user_id': used in a foreign key constraint 'wx_balance_flow_record_RMB_ibfk_1'") [SQL: 'ALTER TABLE `wx_balance_...

执行“ python xxx.py db migration -m'添加关系'”时 数据库实际的header和migration文件夹里的version里的最新版本号步一直, 应该是执行了migration 后忘记执行upgrade了, 然后又重复执行了几次mrgration, 就导致创建了几个版本, 恢复 ...

打开命令行 pip install virtualenv #安装虚拟环境 pip install virtualenvwrapper-win #安装虚拟环境扩展包 设置系统环境变量, 指向python的安装目录下的Script目录 Linux下配置 sudo pip install virtualenv #安装虚拟环境 sudo pip install virtual...

如果 安装有其他fdfs包, 要先卸载完再安装py3Fdfs pip install py3Fdfs 测试 from fdfs_client.client import * client_conf_obj = get_tracker_conf('/etc/fdfs/client.conf') client = Fdfs_client(client_conf_obj) ret = cli...