{
  "id": "python/pip-requirements-txt-malformed-line",
  "signature": "ERROR: Invalid requirement: 'requests=>2.0' (from line 3 of requirements.txt)",
  "signature_zh": "错误：无效需求：'requests=>2.0'（来自 requirements.txt 第 3 行）",
  "regex": "ERROR:\\ Invalid\\ requirement:\\ 'requests=>2\\.0'\\ \\(from\\ line\\ 3\\ of\\ requirements\\.txt\\)",
  "domain": "python",
  "category": "data_error",
  "subcategory": null,
  "root_cause": "Typo in operator (=> instead of >=) or malformed specifier in requirements file.",
  "root_cause_type": "generic",
  "root_cause_zh": "运算符拼写错误（=> 而非 >=）或 requirements 文件中的说明符格式错误。",
  "versions": [
    {
      "version": "3.x",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "",
      "why_fails": "Parsing error occurs before installation logic.",
      "fail_rate": 0.9,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "Still parses the malformed requirement line.",
      "fail_rate": 0.85,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "",
      "success_rate": 0.95,
      "how": "sed -i 's/=>/>=/g' requirements.txt\npip install -r requirements.txt",
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "success_rate": 0.85,
      "how": "python -m pip install --dry-run -r requirements.txt",
      "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": "2025-09-02",
  "last_confirmed": "2025-01-01",
  "last_updated": "2025-01-01",
  "evidence_count": 0,
  "tags": [],
  "locale": "en",
  "aliases": []
}