# configparser.DuplicateSectionError

- **ID:** `python/configparser-duplicatesectionerror`
- **Domain:** python
- **Category:** config_error
- **Verification:** official
- **Fix Rate:** 80%

## Root Cause

Attempt to add a section that already exists.

## Version Compatibility

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