E Wallet Code Today

def _log_transaction(self, txn_type, amount, counterparty=None): txn = "id": str(uuid.uuid4()), "type": txn_type, "amount": amount, "timestamp": datetime.utcnow().isoformat(), "counterparty": counterparty, "balance_after": self.balance self.transactions.append(txn) alice = SimpleWallet("alice_123") bob = SimpleWallet("bob_456")

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def pay(self, amount, recipient_wallet): if amount <= 0: return "Amount must be positive" if self.balance < amount: return "Insufficient balance" counterparty=None): txn = "id": str(uuid.uuid4())