Peewee 简明教程

Peewee - Database Errors

Python 的 DB-API 标准（PEP 249 建议）指定了任何 DB-API 兼容模块（如 pymysql、pyscopg2 等）要定义的异常类类型。

Python’s DB-API standard (recommended by PEP 249) specifies the types of Exception classes to be defined by any DB-API compliant module (such as pymysql, pyscopg2, etc.).

Peewee API 为这些异常提供了易于使用的包装器。 PeeweeException 是 Peewee API 中定义了以下 Exception 类的基类 −

Peewee API provides easy-to-use wrappers for these exceptions. PeeweeException is the base classes from which following Exception classes has been defined in Peewee API −

  1. DatabaseError

  2. DataError

  3. IntegrityError

  4. InterfaceError

  5. InternalError

  6. NotSupportedError

  7. OperationalError

  8. ProgrammingError

我们可以从 Peewee 实现上述异常，而不是尝试 DB-API 特定的异常。

Instead of DB-API specific exceptions to be tried, we can implement above ones from Peewee.