{
  "approach": "Blocked before simulator setup: no Python interpreter is available. The brief explicitly requires stopping in this case. No strategy was retrieved, changed, or scored; unmeasured fields are null.",
  "blocked": "python3 --version exited 127 with /bin/bash: line 1: python3: command not found. command -v found none of python, python3, python3.10, python3.11, python3.12, python3.13, python3.14, or pypy3. No interpreter was present at /usr/bin/python*, /usr/local/bin/python*, or /opt/python*/bin/python*. Python 3.10 or newer is required to execute this assignment.",
  "python_version": null,
  "spread": 3,
  "base_mean_edge": null,
  "runs": {
    "tuning": 0,
    "unseen": 0
  },
  "base_unseen": {
    "mean_edge": null,
    "retail_edge": null,
    "arb_edge": null
  },
  "holdout": {
    "mean_edge": null,
    "retail_edge": null,
    "arb_edge": null,
    "failures": null
  },
  "diff": {
    "mean": null,
    "standard_error": null,
    "retail": null,
    "arb": null
  },
  "others_identical": {
    "runs": 0,
    "identical": null
  },
  "seconds": {
    "base": null,
    "yours": null
  },
  "code": "",
  "code_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
  "tried": [
    "Runtime check: python3 --version failed with exit 127 (command not found).",
    "Alternative interpreter checks found no Python executable; no simulations or strategy experiments were run."
  ],
  "next": "Rerun this assignment on a machine with Python 3.10 or newer, starting with the required baseline scorer check."
}