{
  "id": "python/pip-requirements-file-encoding",
  "signature": "ERROR: Could not open requirements file: [Errno 22] Invalid argument: 'requirements.txt'",
  "signature_zh": "错误：无法打开requirements文件：[Errno 22] 无效参数：'requirements.txt'",
  "regex": "ERROR:\\ Could\\ not\\ open\\ requirements\\ file:\\ \\[Errno\\ 22\\]\\ Invalid\\ argument:\\ 'requirements\\.txt'",
  "domain": "python",
  "category": "encoding_error",
  "subcategory": null,
  "root_cause": "The requirements file has an invalid encoding (e.g., UTF-16 with BOM) or contains null bytes.",
  "root_cause_type": "generic",
  "root_cause_zh": "requirements文件具有无效编码（例如带BOM的UTF-16）或包含空字节。",
  "versions": [
    {
      "version": "3.9",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "Creating a new file with same name",
      "why_fails": "Does not fix encoding issue; may recreate with wrong encoding.",
      "fail_rate": 0.8,
      "condition": "",
      "sources": []
    },
    {
      "action": "Using --no-cache-dir",
      "why_fails": "Cache is irrelevant; file reading fails.",
      "fail_rate": 0.9,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "Convert file to UTF-8 encoding",
      "success_rate": 0.9,
      "how": "iconv -f UTF-16 -t UTF-8 requirements.txt > requirements_utf8.txt\nmv requirements_utf8.txt requirements.txt",
      "condition": "",
      "sources": []
    },
    {
      "action": "Recreate requirements file with proper encoding",
      "success_rate": 0.85,
      "how": "pip freeze > requirements.txt\n# Ensure editor saves as UTF-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": 0.85,
  "fix_success_rate": 0.8,
  "resolvable": "true",
  "first_seen": "2025-07-15",
  "last_confirmed": "2025-01-01",
  "last_updated": "2025-01-01",
  "evidence_count": 0,
  "tags": [],
  "locale": "en",
  "aliases": []
}