{
  "id": "python/packaging-utils-import-error",
  "signature": "ImportError: cannot import name 'canonicalize_name' from 'packaging.utils'",
  "signature_zh": "ImportError：无法从 'packaging.utils' 导入名称 'canonicalize_name'",
  "regex": "ImportError:\\ cannot\\ import\\ name\\ 'canonicalize_name'\\ from\\ 'packaging\\.utils'",
  "domain": "python",
  "category": "module_error",
  "subcategory": null,
  "root_cause": "The function canonicalize_name was moved to packaging.utils in newer versions, but the installed packaging library is too old.",
  "root_cause_type": "generic",
  "root_cause_zh": "函数 canonicalize_name 在较新版本中已移动到 packaging.utils，但安装的 packaging 库太旧。",
  "versions": [
    {
      "version": "3.8",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "3.9",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "3.10",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "3.11",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "3.12",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "",
      "why_fails": "Downgrading may break other packages that depend on newer features.",
      "fail_rate": 0.4,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "The function simply does not exist in older versions; no alternative path works.",
      "fail_rate": 0.8,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "",
      "success_rate": 0.95,
      "how": "pip install --upgrade packaging",
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "success_rate": 0.85,
      "how": "try: from packaging.utils import canonicalize_name; except ImportError: from packaging.utils import canonicalize_name as _; # handle manually",
      "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": 0.83,
  "fix_success_rate": 0.8,
  "resolvable": "true",
  "first_seen": "2025-12-05",
  "last_confirmed": "2025-01-01",
  "last_updated": "2025-01-01",
  "evidence_count": 0,
  "tags": [],
  "locale": "en",
  "aliases": []
}