{
  "id": "python/pydantic-recursive-model-loop",
  "signature": "pydantic.errors.ConfigError: Recursion error in model definition",
  "signature_zh": "pydantic.errors.ConfigError: 模型定义中的递归错误",
  "regex": "pydantic\\.errors\\.ConfigError:\\ Recursion\\ error\\ in\\ model\\ definition",
  "domain": "python",
  "category": "config_error",
  "subcategory": null,
  "root_cause": "A model references itself directly or indirectly without using ForwardRef or proper typing, causing infinite recursion during schema generation.",
  "root_cause_type": "generic",
  "root_cause_zh": "模型直接或间接引用自身，但未使用 ForwardRef 或正确类型提示，导致模式生成时无限递归。",
  "versions": [
    {
      "version": "2.x",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "",
      "why_fails": "Type is not resolved at definition time.",
      "fail_rate": 0.7,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "Causes circular import and recursion.",
      "fail_rate": 0.8,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "",
      "success_rate": 0.9,
      "how": "Use forward reference: child: Optional['Model'] = None",
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "success_rate": 0.85,
      "how": "Use model_rebuild() after definition",
      "condition": "",
      "sources": []
    }
  ],
  "workarounds_zh": [],
  "transition_graph": {
    "leads_to": [],
    "preceded_by": [],
    "frequently_confused_with": []
  },
  "official_doc_url": null,
  "official_doc_section": null,
  "error_code": null,
  "verification_tier": "ai_generated",
  "confidence": 0.84,
  "fix_success_rate": 0.8,
  "resolvable": "true",
  "first_seen": "2024-05-01",
  "last_confirmed": "2025-01-01",
  "last_updated": "2025-01-01",
  "evidence_count": 0,
  "tags": [],
  "locale": "en",
  "aliases": []
}