# Exception

- **ID:** `python/exception`
- **Domain:** python
- **Category:** exception
- **Error Code:** `Exception`
- **Verification:** official
- **Fix Rate:** 80%

## Root Cause

All built-in non-system-exiting exceptions are derived from this class. All user-defined exceptions should derive from this class.

## Version Compatibility

| Version | Status | Introduced | Deprecated |
|---------|--------|------------|------------|
| 3.x | active | — | — |