خطوط التحليل القابلة للتكرار

import hashlib
import json

def digest(record):
    payload = json.dumps(record, sort_keys=True, separators=(",", ":"), ensure_ascii=False).encode("utf-8")
    return hashlib.sha256(payload).hexdigest()

first = {"metric": "orders", "count": 3}
reordered = {"count": 3, "metric": "orders"}
changed = {"metric": "orders", "count": 4}
print("same content", digest(first) == digest(reordered))
print("changed content", digest(first) == digest(changed))

same content True
changed content False

يحفظ تبديل ترتيب الحقول المحتوى المعياري، بينما لا يحفظه تغيير العدد.

import json

def analyze(tokens):
    accepted = [int(token) for token in tokens if token.isascii() and token.isdecimal() and 0 <= int(token) <= 100]
    return {"input": len(tokens), "accepted": len(accepted), "rejected": len(tokens) - len(accepted), "total": sum(accepted)}

raw = ["0", "12", "bad"]
before = list(raw)
result = analyze(raw)
assert result["accepted"] + result["rejected"] == result["input"]
assert result["total"] == 12 and raw == before
print(json.dumps(result, sort_keys=True))

{"accepted": 2, "input": 3, "rejected": 1, "total": 12}

تجمع القيمتان المقبولتان إلى12، ويرفض رمز واحد، وتبقى القائمة الخام دون تعديل.