Уроборос

from ouroboros_runtime import log as _ouro_log
@_ouro_log
def discount_rate(total, member):
    if member:
        return 0.15
    if total >= 10000:
        return 0.10
    return 0.0


@_ouro_log
def apply_discount(total, member=False):
    rate = discount_rate(total, member)
    return round(total * (1 - rate), 2)


@_ouro_log
def main():
    for total, member in [(9999, False), (10000, False), (500, True)]:
        print(total, member, apply_discount(total, member=member))
    apply_discount("free")


main()

9999 False 9999.0
10000 False 9000.0
500 True 425.0
Traceback (most recent call last):
  File "/home/user/shop/discount.py", line 24, in <module>
    main()
    ~~~~^^
  File "/home/user/shop/ouroboros_runtime.py", line 234, in wrapper
    result = fn(*args, **kwargs)
  File "/home/user/shop/discount.py", line 21, in main
    apply_discount("free")
    ~~~~~~~~~~~~~~^^^^^^^^
  File "/home/user/shop/ouroboros_runtime.py", line 234, in wrapper
    result = fn(*args, **kwargs)
  File "/home/user/shop/discount.py", line 13, in apply_discount
    rate = discount_rate(total, member)
  File "/home/user/shop/ouroboros_runtime.py", line 234, in wrapper
    result = fn(*args, **kwargs)
  File "/home/user/shop/discount.py", line 6, in discount_rate
    if total >= 10000:
       ^^^^^^^^^^^^^^
TypeError: '>=' not supported between instances of 'str' and 'int'

{"p":"in","t":"2026-09-10T19:51:47.402","id":"fb17367a-f596-4198-9565-add097cefa0e","ci":-1,"th":"2.136045302235648","fn":"discount_rate","a":"'free', False","k":""}
{"p":"out","id":"fb17367a-f596-4198-9565-add097cefa0e","fn":"discount_rate","x":"TypeError: '>=' not supported between instances of 'str' and 'int'","d":3e-06}

{
  "ok": true,
  "path": "debug.info",
  "calls_parsed": 9,
  "malformed": 0,
  "matched": 1,
  "returned": 1,
  "next_cursor": null,
  "in_flight": [],
  "in_flight_truncated": false,
  "records": [
    {
      "index": 6,
      "started": "2026-09-10T19:51:47.402",
      "call_id": "fb17367a-f596-4198-9565-add097cefa0e",
      "name": "discount_rate",
      "args": "'free', False",
      "kwargs": "",
      "outcome_kind": "raised",
      "outcome": "TypeError: '>=' not supported between instances of 'str' and 'int'",
      "duration": 3e-06,
      "cpu": null,
      "thread": "2.136045302235648"
    }
  ]
}

{
  "ok": true,
  "path": "debug.info",
  "calls_parsed": 9,
  "malformed": 0,
  "total_calls": 9,
  "in_flight": [],
  "by_function": [
    {
      "name": "apply_discount",
      "count": 4,
      "result": 3,
      "raised": 1,
      "unknown": 0,
      "duration_seconds": {
        "min": 7e-05,
        "max": 0.000103,
        "mean": 8.7e-05,
        "total": 0.000347,
        "count": 4
      }
    },
    {
      "name": "discount_rate",
      "count": 4,
      "result": 3,
      "raised": 1,
      "unknown": 0,
      "duration_seconds": {
        "min": 1e-06,
        "max": 3e-06,
        "mean": 2e-06,
        "total": 7e-06,
        "count": 4
      }
    },
    {
      "name": "main",
      "count": 1,
      "result": 0,
      "raised": 1,
      "unknown": 0,
      "duration_seconds": {
        "min": 0.000693,
        "max": 0.000693,
        "mean": 0.000693,
        "total": 0.000693,
        "count": 1
      }
    }
  ],
  "by_thread": [
    {
      "thread": "2.136045302235648",
      "count": 9,
      "functions": 3,
      "cpus": []
    }
  ],
  "duration_seconds": {
    "min": 1e-06,
    "max": 0.000693,
    "mean": 0.000116,
    "total": 0.001047,
    "count": 9
  },
  "timespan": {
    "first": "2026-09-10T19:51:47.402",
    "last": "2026-09-10T19:51:47.402",
    "seconds": 0.0,
    "timestamps_parsed": 9,
    "timestamps_unparsed": 0
  },
  "note": "counts/durations are over completed calls; `duration_seconds` are REAL per-call durations (exit−entry) from each call's `d`. `by_thread` groups calls by the `th` token (CPUs each thread ran on); empty for traces with no thread field. `in_flight` = entered (`p:in`) but never completed. `timespan` is first→last entry time."
}