{
  "id": "python/pip-requires-python-constraint",
  "signature": "ERROR: Package 'foo' requires a different Python: 3.8.10 not in '>=3.9'",
  "signature_zh": "错误：包 'foo' 需要不同的 Python 版本：3.8.10 不在 '>=3.9' 范围内",
  "regex": "ERROR:\\ Package\\ 'foo'\\ requires\\ a\\ different\\ Python:\\ 3\\.8\\.10\\ not\\ in\\ '>=3\\.9'",
  "domain": "python",
  "category": "install_error",
  "subcategory": null,
  "root_cause": "The package's metadata declares a Python version range that excludes the current interpreter.",
  "root_cause_type": "generic",
  "root_cause_zh": "包的元数据声明了不包含当前解释器的 Python 版本范围。",
  "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"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "",
      "why_fails": "May install code using syntax/features unavailable on the running interpreter, causing runtime crashes.",
      "fail_rate": 0.65,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "Old pip still enforces metadata and may break other packages.",
      "fail_rate": 0.55,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "",
      "success_rate": 0.95,
      "how": "pyenv install 3.11.9 && pyenv local 3.11.9\npython -m pip install foo",
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "success_rate": 0.8,
      "how": "python -m pip install \"foo<2.0\"  # choose a version supporting 3.8",
      "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": 0.86,
  "fix_success_rate": 0.8,
  "resolvable": "true",
  "first_seen": "2024-05-02",
  "last_confirmed": "2025-01-01",
  "last_updated": "2025-01-01",
  "evidence_count": 0,
  "tags": [],
  "locale": "en",
  "aliases": []
}