Reformat with black.

basicswap/interface/xmr.py

@@ -2,6 +2,7 @@
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2020-2024 tecnovert
+# Copyright (c) 2024 The Basicswap developers
 # Distributed under the MIT software license, see the accompanying
 # file LICENSE or http://www.opensource.org/licenses/mit-license.php.
 
@@ -26,16 +27,9 @@ from coincurve.dleag import (
 from basicswap.interface.base import (
     Curves,
 )
-from basicswap.util import (
-    i2b, b2i, b2h,
-    dumpj,
-    ensure,
-    TemporaryError)
-from basicswap.util.network import (
-    is_private_ip_address)
-from basicswap.rpc_xmr import (
-    make_xmr_rpc_func,
-    make_xmr_rpc2_func)
+from basicswap.util import i2b, b2i, b2h, dumpj, ensure, TemporaryError
+from basicswap.util.network import is_private_ip_address
+from basicswap.rpc_xmr import make_xmr_rpc_func, make_xmr_rpc2_func
 from basicswap.chainparams import XMR_COIN, Coins
 from basicswap.interface.base import CoinInterface
 
@@ -75,7 +69,7 @@ class XMRInterface(CoinInterface):
 
     @staticmethod
     def xmr_swap_a_lock_spend_tx_vsize() -> int:
-        raise ValueError('Not possible')
+        raise ValueError("Not possible")
 
     @staticmethod
     def xmr_swap_b_lock_spend_tx_vsize() -> int:
@@ -84,62 +78,93 @@ class XMRInterface(CoinInterface):
 
     def is_transient_error(self, ex) -> bool:
         str_error: str = str(ex).lower()
-        if 'failed to get output distribution' in str_error:
+        if "failed to get output distribution" in str_error:
             return True
         return super().is_transient_error(ex)
 
     def __init__(self, coin_settings, network, swap_client=None):
         super().__init__(network)
 
-        self._addr_prefix = self.chainparams_network()['address_prefix']
+        self._addr_prefix = self.chainparams_network()["address_prefix"]
 
-        self.blocks_confirmed = coin_settings['blocks_confirmed']
-        self._restore_height = coin_settings.get('restore_height', 0)
-        self.setFeePriority(coin_settings.get('fee_priority', 0))
+        self.blocks_confirmed = coin_settings["blocks_confirmed"]
+        self._restore_height = coin_settings.get("restore_height", 0)
+        self.setFeePriority(coin_settings.get("fee_priority", 0))
         self._sc = swap_client
         self._log = self._sc.log if self._sc and self._sc.log else logging
         self._wallet_password = None
         self._have_checked_seed = False
 
         daemon_login = None
-        if coin_settings.get('rpcuser', '') != '':
-            daemon_login = (coin_settings.get('rpcuser', ''), coin_settings.get('rpcpassword', ''))
+        if coin_settings.get("rpcuser", "") != "":
+            daemon_login = (
+                coin_settings.get("rpcuser", ""),
+                coin_settings.get("rpcpassword", ""),
+            )
 
-        rpchost = coin_settings.get('rpchost', '127.0.0.1')
+        rpchost = coin_settings.get("rpchost", "127.0.0.1")
         proxy_host = None
         proxy_port = None
         # Connect to the daemon over a proxy if not running locally
         if swap_client:
             chain_client_settings = swap_client.getChainClientSettings(self.coin_type())
-            manage_daemon: bool = chain_client_settings['manage_daemon']
+            manage_daemon: bool = chain_client_settings["manage_daemon"]
             if swap_client.use_tor_proxy:
                 if manage_daemon is False:
-                    log_str: str = ''
-                    have_cc_tor_opt = 'use_tor' in chain_client_settings
-                    if have_cc_tor_opt and chain_client_settings['use_tor'] is False:
-                        log_str = ' bypassing proxy (use_tor false for XMR)'
+                    log_str: str = ""
+                    have_cc_tor_opt = "use_tor" in chain_client_settings
+                    if have_cc_tor_opt and chain_client_settings["use_tor"] is False:
+                        log_str = " bypassing proxy (use_tor false for XMR)"
                     elif have_cc_tor_opt is False and is_private_ip_address(rpchost):
-                        log_str = ' bypassing proxy (private ip address)'
+                        log_str = " bypassing proxy (private ip address)"
                     else:
                         proxy_host = swap_client.tor_proxy_host
                         proxy_port = swap_client.tor_proxy_port
-                        log_str = f' through proxy at {proxy_host}'
-                    self._log.info(f'Connecting to remote {self.coin_name()} daemon at {rpchost}{log_str}.')
+                        log_str = f" through proxy at {proxy_host}"
+                    self._log.info(
+                        f"Connecting to remote {self.coin_name()} daemon at {rpchost}{log_str}."
+                    )
                 else:
-                    self._log.info(f'Not connecting to local {self.coin_name()} daemon through proxy.')
+                    self._log.info(
+                        f"Not connecting to local {self.coin_name()} daemon through proxy."
+                    )
             elif manage_daemon is False:
-                self._log.info(f'Connecting to remote {self.coin_name()} daemon at {rpchost}.')
+                self._log.info(
+                    f"Connecting to remote {self.coin_name()} daemon at {rpchost}."
+                )
 
-        self._rpctimeout = coin_settings.get('rpctimeout', 60)
-        self._walletrpctimeout = coin_settings.get('walletrpctimeout', 120)
-        self._walletrpctimeoutlong = coin_settings.get('walletrpctimeoutlong', 600)
+        self._rpctimeout = coin_settings.get("rpctimeout", 60)
+        self._walletrpctimeout = coin_settings.get("walletrpctimeout", 120)
+        self._walletrpctimeoutlong = coin_settings.get("walletrpctimeoutlong", 600)
 
-        self.rpc = make_xmr_rpc_func(coin_settings['rpcport'], daemon_login, host=rpchost, proxy_host=proxy_host, proxy_port=proxy_port, default_timeout=self._rpctimeout, tag='Node(j) ')
-        self.rpc2 = make_xmr_rpc2_func(coin_settings['rpcport'], daemon_login, host=rpchost, proxy_host=proxy_host, proxy_port=proxy_port, default_timeout=self._rpctimeout, tag='Node ')  # non-json endpoint
-        self.rpc_wallet = make_xmr_rpc_func(coin_settings['walletrpcport'], coin_settings['walletrpcauth'], host=coin_settings.get('walletrpchost', '127.0.0.1'), default_timeout=self._walletrpctimeout, tag='Wallet ')
+        self.rpc = make_xmr_rpc_func(
+            coin_settings["rpcport"],
+            daemon_login,
+            host=rpchost,
+            proxy_host=proxy_host,
+            proxy_port=proxy_port,
+            default_timeout=self._rpctimeout,
+            tag="Node(j) ",
+        )
+        self.rpc2 = make_xmr_rpc2_func(
+            coin_settings["rpcport"],
+            daemon_login,
+            host=rpchost,
+            proxy_host=proxy_host,
+            proxy_port=proxy_port,
+            default_timeout=self._rpctimeout,
+            tag="Node ",
+        )  # non-json endpoint
+        self.rpc_wallet = make_xmr_rpc_func(
+            coin_settings["walletrpcport"],
+            coin_settings["walletrpcauth"],
+            host=coin_settings.get("walletrpchost", "127.0.0.1"),
+            default_timeout=self._walletrpctimeout,
+            tag="Wallet ",
+        )
 
     def setFeePriority(self, new_priority):
-        ensure(new_priority >= 0 and new_priority < 4, 'Invalid fee_priority value')
+        ensure(new_priority >= 0 and new_priority < 4, "Invalid fee_priority value")
         self._fee_priority = new_priority
 
     def setWalletFilename(self, wallet_filename):
@@ -147,29 +172,31 @@ class XMRInterface(CoinInterface):
 
     def createWallet(self, params):
         if self._wallet_password is not None:
-            params['password'] = self._wallet_password
-        rv = self.rpc_wallet('generate_from_keys', params)
-        self._log.info('generate_from_keys %s', dumpj(rv))
+            params["password"] = self._wallet_password
+        rv = self.rpc_wallet("generate_from_keys", params)
+        self._log.info("generate_from_keys %s", dumpj(rv))
 
     def openWallet(self, filename):
-        params = {'filename': filename}
+        params = {"filename": filename}
         if self._wallet_password is not None:
-            params['password'] = self._wallet_password
+            params["password"] = self._wallet_password
 
         try:
             # Can't reopen the same wallet in windows, !is_keys_file_locked()
-            self.rpc_wallet('close_wallet')
+            self.rpc_wallet("close_wallet")
         except Exception:
             pass
-        self.rpc_wallet('open_wallet', params)
+        self.rpc_wallet("open_wallet", params)
 
-    def initialiseWallet(self, key_view: bytes, key_spend: bytes, restore_height=None) -> None:
+    def initialiseWallet(
+        self, key_view: bytes, key_spend: bytes, restore_height=None
+    ) -> None:
         with self._mx_wallet:
             try:
                 self.openWallet(self._wallet_filename)
                 # TODO: Check address
                 return  # Wallet exists
-            except Exception as e:
+            except Exception as e:  # noqa: F841
                 pass
 
             Kbv = self.getPubkey(key_view)
@@ -177,11 +204,11 @@ class XMRInterface(CoinInterface):
             address_b58 = xmr_util.encode_address(Kbv, Kbs, self._addr_prefix)
 
             params = {
-                'filename': self._wallet_filename,
-                'address': address_b58,
-                'viewkey': b2h(key_view[::-1]),
-                'spendkey': b2h(key_spend[::-1]),
-                'restore_height': self._restore_height,
+                "filename": self._wallet_filename,
+                "address": address_b58,
+                "viewkey": b2h(key_view[::-1]),
+                "spendkey": b2h(key_spend[::-1]),
+                "restore_height": self._restore_height,
             }
             self.createWallet(params)
             self.openWallet(self._wallet_filename)
@@ -191,84 +218,95 @@ class XMRInterface(CoinInterface):
             self.openWallet(self._wallet_filename)
 
     def testDaemonRPC(self, with_wallet=True) -> None:
-        self.rpc_wallet('get_languages')
+        self.rpc_wallet("get_languages")
 
     def getDaemonVersion(self):
-        return self.rpc_wallet('get_version')['version']
+        return self.rpc_wallet("get_version")["version"]
 
     def getBlockchainInfo(self):
-        get_height = self.rpc2('get_height', timeout=self._rpctimeout)
+        get_height = self.rpc2("get_height", timeout=self._rpctimeout)
         rv = {
-            'blocks': get_height['height'],
-            'verificationprogress': 0.0,
+            "blocks": get_height["height"],
+            "verificationprogress": 0.0,
         }
 
         try:
             # get_block_count.block_count is how many blocks are in the longest chain known to the node.
             # get_block_count returns "Internal error" if bootstrap-daemon is active
-            if get_height['untrusted'] is True:
-                rv['bootstrapping'] = True
-                get_info = self.rpc2('get_info', timeout=self._rpctimeout)
-                if 'height_without_bootstrap' in get_info:
-                    rv['blocks'] = get_info['height_without_bootstrap']
+            if get_height["untrusted"] is True:
+                rv["bootstrapping"] = True
+                get_info = self.rpc2("get_info", timeout=self._rpctimeout)
+                if "height_without_bootstrap" in get_info:
+                    rv["blocks"] = get_info["height_without_bootstrap"]
 
-                rv['known_block_count'] = get_info['height']
-                if rv['known_block_count'] > rv['blocks']:
-                    rv['verificationprogress'] = rv['blocks'] / rv['known_block_count']
+                rv["known_block_count"] = get_info["height"]
+                if rv["known_block_count"] > rv["blocks"]:
+                    rv["verificationprogress"] = rv["blocks"] / rv["known_block_count"]
             else:
-                rv['known_block_count'] = self.rpc('get_block_count', timeout=self._rpctimeout)['count']
-                rv['verificationprogress'] = rv['blocks'] / rv['known_block_count']
+                rv["known_block_count"] = self.rpc(
+                    "get_block_count", timeout=self._rpctimeout
+                )["count"]
+                rv["verificationprogress"] = rv["blocks"] / rv["known_block_count"]
         except Exception as e:
-            self._log.warning(f'{self.ticker_str()} get_block_count failed with: {e}')
-            rv['verificationprogress'] = 0.0
+            self._log.warning(f"{self.ticker_str()} get_block_count failed with: {e}")
+            rv["verificationprogress"] = 0.0
 
         return rv
 
     def getChainHeight(self):
-        return self.rpc2('get_height', timeout=self._rpctimeout)['height']
+        return self.rpc2("get_height", timeout=self._rpctimeout)["height"]
 
     def getWalletInfo(self):
         with self._mx_wallet:
             try:
                 self.openWallet(self._wallet_filename)
             except Exception as e:
-                if 'Failed to open wallet' in str(e):
-                    rv = {'encrypted': True, 'locked': True, 'balance': 0, 'unconfirmed_balance': 0}
+                if "Failed to open wallet" in str(e):
+                    rv = {
+                        "encrypted": True,
+                        "locked": True,
+                        "balance": 0,
+                        "unconfirmed_balance": 0,
+                    }
                     return rv
                 raise e
 
             rv = {}
-            self.rpc_wallet('refresh')
-            balance_info = self.rpc_wallet('get_balance')
+            self.rpc_wallet("refresh")
+            balance_info = self.rpc_wallet("get_balance")
 
-            rv['balance'] = self.format_amount(balance_info['unlocked_balance'])
-            rv['unconfirmed_balance'] = self.format_amount(balance_info['balance'] - balance_info['unlocked_balance'])
-            rv['encrypted'] = False if self._wallet_password is None else True
-            rv['locked'] = False
+            rv["balance"] = self.format_amount(balance_info["unlocked_balance"])
+            rv["unconfirmed_balance"] = self.format_amount(
+                balance_info["balance"] - balance_info["unlocked_balance"]
+            )
+            rv["encrypted"] = False if self._wallet_password is None else True
+            rv["locked"] = False
             return rv
 
     def getMainWalletAddress(self) -> str:
         with self._mx_wallet:
             self.openWallet(self._wallet_filename)
-            return self.rpc_wallet('get_address')['address']
+            return self.rpc_wallet("get_address")["address"]
 
     def getNewAddress(self, placeholder) -> str:
         with self._mx_wallet:
             self.openWallet(self._wallet_filename)
-            new_address = self.rpc_wallet('create_address', {'account_index': 0})['address']
-            self.rpc_wallet('store')
+            new_address = self.rpc_wallet("create_address", {"account_index": 0})[
+                "address"
+            ]
+            self.rpc_wallet("store")
             return new_address
 
     def get_fee_rate(self, conf_target: int = 2):
         # fees - array of unsigned int; Represents the base fees at different priorities [slow, normal, fast, fastest].
-        fee_est = self.rpc('get_fee_estimate')
+        fee_est = self.rpc("get_fee_estimate")
         if conf_target <= 1:
             conf_target = 1  # normal
         else:
             conf_target = 0  # slow
-        fee_per_k_bytes = fee_est['fees'][conf_target] * 1000
+        fee_per_k_bytes = fee_est["fees"][conf_target] * 1000
 
-        return float(self.format_amount(fee_per_k_bytes)), 'get_fee_estimate'
+        return float(self.format_amount(fee_per_k_bytes)), "get_fee_estimate"
 
     def getNewSecretKey(self) -> bytes:
         # Note: Returned bytes are in big endian order
@@ -299,7 +337,7 @@ class XMRInterface(CoinInterface):
 
     def verifyKey(self, k: int) -> bool:
         i = b2i(k)
-        return (i < edf.l and i > 8)
+        return i < edf.l and i > 8
 
     def verifyPubkey(self, pubkey_bytes):
         # Calls ed25519_decode_check_point() in secp256k1
@@ -325,45 +363,59 @@ class XMRInterface(CoinInterface):
     def encodeSharedAddress(self, Kbv: bytes, Kbs: bytes) -> str:
         return xmr_util.encode_address(Kbv, Kbs, self._addr_prefix)
 
-    def publishBLockTx(self, kbv: bytes, Kbs: bytes, output_amount: int, feerate: int, unlock_time: int = 0) -> bytes:
+    def publishBLockTx(
+        self,
+        kbv: bytes,
+        Kbs: bytes,
+        output_amount: int,
+        feerate: int,
+        unlock_time: int = 0,
+    ) -> bytes:
         with self._mx_wallet:
             self.openWallet(self._wallet_filename)
-            self.rpc_wallet('refresh')
+            self.rpc_wallet("refresh")
 
             Kbv = self.getPubkey(kbv)
             shared_addr = xmr_util.encode_address(Kbv, Kbs, self._addr_prefix)
 
-            params = {'destinations': [{'amount': output_amount, 'address': shared_addr}], 'unlock_time': unlock_time}
+            params = {
+                "destinations": [{"amount": output_amount, "address": shared_addr}],
+                "unlock_time": unlock_time,
+            }
             if self._fee_priority > 0:
-                params['priority'] = self._fee_priority
-            rv = self.rpc_wallet('transfer', params)
-            self._log.info('publishBLockTx %s to address_b58 %s', rv['tx_hash'], shared_addr)
-            tx_hash = bytes.fromhex(rv['tx_hash'])
+                params["priority"] = self._fee_priority
+            rv = self.rpc_wallet("transfer", params)
+            self._log.info(
+                "publishBLockTx %s to address_b58 %s", rv["tx_hash"], shared_addr
+            )
+            tx_hash = bytes.fromhex(rv["tx_hash"])
 
             return tx_hash
 
-    def findTxB(self, kbv, Kbs, cb_swap_value, cb_block_confirmed, restore_height, bid_sender):
+    def findTxB(
+        self, kbv, Kbs, cb_swap_value, cb_block_confirmed, restore_height, bid_sender
+    ):
         with self._mx_wallet:
             Kbv = self.getPubkey(kbv)
             address_b58 = xmr_util.encode_address(Kbv, Kbs, self._addr_prefix)
 
             kbv_le = kbv[::-1]
             params = {
-                'restore_height': restore_height,
-                'filename': address_b58,
-                'address': address_b58,
-                'viewkey': b2h(kbv_le),
+                "restore_height": restore_height,
+                "filename": address_b58,
+                "address": address_b58,
+                "viewkey": b2h(kbv_le),
             }
 
             try:
                 self.openWallet(address_b58)
-            except Exception as e:
+            except Exception as e:  # noqa: F841
                 self.createWallet(params)
                 self.openWallet(address_b58)
 
-            self.rpc_wallet('refresh', timeout=self._walletrpctimeoutlong)
+            self.rpc_wallet("refresh", timeout=self._walletrpctimeoutlong)
 
-            '''
+            """
             # Debug
             try:
                 current_height = self.rpc_wallet('get_height')['height']
@@ -372,137 +424,222 @@ class XMRInterface(CoinInterface):
                 self._log.info('rpc failed %s', str(e))
                 current_height = None  # If the transfer is available it will be deep enough
                 #   and (current_height is None or current_height - transfer['block_height'] > cb_block_confirmed):
-            '''
-            params = {'transfer_type': 'available'}
-            transfers = self.rpc_wallet('incoming_transfers', params)
+            """
+            params = {"transfer_type": "available"}
+            transfers = self.rpc_wallet("incoming_transfers", params)
             rv = None
-            if 'transfers' in transfers:
-                for transfer in transfers['transfers']:
+            if "transfers" in transfers:
+                for transfer in transfers["transfers"]:
                     # unlocked <- wallet->is_transfer_unlocked() checks unlock_time and CRYPTONOTE_DEFAULT_TX_SPENDABLE_AGE
-                    if not transfer['unlocked']:
-                        full_tx = self.rpc_wallet('get_transfer_by_txid', {'txid': transfer['tx_hash']})
-                        unlock_time = full_tx['transfer']['unlock_time']
+                    if not transfer["unlocked"]:
+                        full_tx = self.rpc_wallet(
+                            "get_transfer_by_txid", {"txid": transfer["tx_hash"]}
+                        )
+                        unlock_time = full_tx["transfer"]["unlock_time"]
                         if unlock_time != 0:
-                            self._log.warning('Coin b lock txn is locked: {}, unlock_time {}'.format(transfer['tx_hash'], unlock_time))
+                            self._log.warning(
+                                "Coin b lock txn is locked: {}, unlock_time {}".format(
+                                    transfer["tx_hash"], unlock_time
+                                )
+                            )
                             rv = -1
                             continue
-                    if transfer['amount'] == cb_swap_value:
-                        return {'txid': transfer['tx_hash'], 'amount': transfer['amount'], 'height': 0 if 'block_height' not in transfer else transfer['block_height']}
+                    if transfer["amount"] == cb_swap_value:
+                        return {
+                            "txid": transfer["tx_hash"],
+                            "amount": transfer["amount"],
+                            "height": (
+                                0
+                                if "block_height" not in transfer
+                                else transfer["block_height"]
+                            ),
+                        }
                     else:
-                        self._log.warning('Incorrect amount detected for coin b lock txn: {}'.format(transfer['tx_hash']))
+                        self._log.warning(
+                            "Incorrect amount detected for coin b lock txn: {}".format(
+                                transfer["tx_hash"]
+                            )
+                        )
                         rv = -1
             return rv
 
     def findTxnByHash(self, txid):
         with self._mx_wallet:
             self.openWallet(self._wallet_filename)
-            self.rpc_wallet('refresh', timeout=self._walletrpctimeoutlong)
+            self.rpc_wallet("refresh", timeout=self._walletrpctimeoutlong)
 
             try:
-                current_height = self.rpc2('get_height', timeout=self._rpctimeout)['height']
-                self._log.info(f'findTxnByHash {self.ticker_str()} current_height {current_height}\nhash: {txid}')
+                current_height = self.rpc2("get_height", timeout=self._rpctimeout)[
+                    "height"
+                ]
+                self._log.info(
+                    f"findTxnByHash {self.ticker_str()} current_height {current_height}\nhash: {txid}"
+                )
             except Exception as e:
-                self._log.info('rpc failed %s', str(e))
-                current_height = None  # If the transfer is available it will be deep enough
+                self._log.info("rpc failed %s", str(e))
+                current_height = (
+                    None  # If the transfer is available it will be deep enough
+                )
 
-            params = {'transfer_type': 'available'}
-            rv = self.rpc_wallet('incoming_transfers', params)
-            if 'transfers' in rv:
-                for transfer in rv['transfers']:
-                    if transfer['tx_hash'] == txid \
-                       and (current_height is None or current_height - transfer['block_height'] > self.blocks_confirmed):
-                        return {'txid': transfer['tx_hash'], 'amount': transfer['amount'], 'height': transfer['block_height']}
+            params = {"transfer_type": "available"}
+            rv = self.rpc_wallet("incoming_transfers", params)
+            if "transfers" in rv:
+                for transfer in rv["transfers"]:
+                    if transfer["tx_hash"] == txid and (
+                        current_height is None
+                        or current_height - transfer["block_height"]
+                        > self.blocks_confirmed
+                    ):
+                        return {
+                            "txid": transfer["tx_hash"],
+                            "amount": transfer["amount"],
+                            "height": transfer["block_height"],
+                        }
 
             return None
 
-    def spendBLockTx(self, chain_b_lock_txid: bytes, address_to: str, kbv: bytes, kbs: bytes, cb_swap_value: int, b_fee_rate: int, restore_height: int, spend_actual_balance: bool = False, lock_tx_vout=None) -> bytes:
-        '''
+    def spendBLockTx(
+        self,
+        chain_b_lock_txid: bytes,
+        address_to: str,
+        kbv: bytes,
+        kbs: bytes,
+        cb_swap_value: int,
+        b_fee_rate: int,
+        restore_height: int,
+        spend_actual_balance: bool = False,
+        lock_tx_vout=None,
+    ) -> bytes:
+        """
         Notes:
         "Error: No unlocked balance in the specified subaddress(es)" can mean not enough funds after tx fee.
-        '''
+        """
         with self._mx_wallet:
             Kbv = self.getPubkey(kbv)
             Kbs = self.getPubkey(kbs)
             address_b58 = xmr_util.encode_address(Kbv, Kbs, self._addr_prefix)
 
-            wallet_filename = address_b58 + '_spend'
+            wallet_filename = address_b58 + "_spend"
 
             params = {
-                'filename': wallet_filename,
-                'address': address_b58,
-                'viewkey': b2h(kbv[::-1]),
-                'spendkey': b2h(kbs[::-1]),
-                'restore_height': restore_height,
+                "filename": wallet_filename,
+                "address": address_b58,
+                "viewkey": b2h(kbv[::-1]),
+                "spendkey": b2h(kbs[::-1]),
+                "restore_height": restore_height,
             }
 
             try:
                 self.openWallet(wallet_filename)
-            except Exception as e:
+            except Exception as e:  # noqa: F841
                 self.createWallet(params)
                 self.openWallet(wallet_filename)
 
-            self.rpc_wallet('refresh')
-            rv = self.rpc_wallet('get_balance')
-            if rv['balance'] < cb_swap_value:
-                self._log.warning('Balance is too low, checking for existing spend.')
-                txns = self.rpc_wallet('get_transfers', {'out': True})
-                if 'out' in txns:
-                    txns = txns['out']
+            self.rpc_wallet("refresh")
+            rv = self.rpc_wallet("get_balance")
+            if rv["balance"] < cb_swap_value:
+                self._log.warning("Balance is too low, checking for existing spend.")
+                txns = self.rpc_wallet("get_transfers", {"out": True})
+                if "out" in txns:
+                    txns = txns["out"]
                     if len(txns) > 0:
-                        txid = txns[0]['txid']
-                        self._log.warning(f'spendBLockTx detected spending tx: {txid}.')
+                        txid = txns[0]["txid"]
+                        self._log.warning(f"spendBLockTx detected spending tx: {txid}.")
 
                         # Should check for address_to, but only the from address is found in the output
-                        if txns[0]['address'] == address_b58:
+                        if txns[0]["address"] == address_b58:
                             return bytes.fromhex(txid)
 
-                self._log.error('wallet {} balance {}, expected {}'.format(wallet_filename, rv['balance'], cb_swap_value))
+                self._log.error(
+                    "wallet {} balance {}, expected {}".format(
+                        wallet_filename, rv["balance"], cb_swap_value
+                    )
+                )
 
                 if not spend_actual_balance:
-                    raise TemporaryError('Invalid balance')
+                    raise TemporaryError("Invalid balance")
 
-            if spend_actual_balance and rv['balance'] != cb_swap_value:
-                self._log.warning('Spending actual balance {}, not swap value {}.'.format(rv['balance'], cb_swap_value))
-                cb_swap_value = rv['balance']
-            if rv['unlocked_balance'] < cb_swap_value:
-                self._log.error('wallet {} balance {}, expected {}, blocks_to_unlock {}'.format(wallet_filename, rv['unlocked_balance'], cb_swap_value, rv['blocks_to_unlock']))
-                raise TemporaryError('Invalid unlocked_balance')
+            if spend_actual_balance and rv["balance"] != cb_swap_value:
+                self._log.warning(
+                    "Spending actual balance {}, not swap value {}.".format(
+                        rv["balance"], cb_swap_value
+                    )
+                )
+                cb_swap_value = rv["balance"]
+            if rv["unlocked_balance"] < cb_swap_value:
+                self._log.error(
+                    "wallet {} balance {}, expected {}, blocks_to_unlock {}".format(
+                        wallet_filename,
+                        rv["unlocked_balance"],
+                        cb_swap_value,
+                        rv["blocks_to_unlock"],
+                    )
+                )
+                raise TemporaryError("Invalid unlocked_balance")
 
-            params = {'address': address_to}
+            params = {"address": address_to}
             if self._fee_priority > 0:
-                params['priority'] = self._fee_priority
+                params["priority"] = self._fee_priority
 
-            rv = self.rpc_wallet('sweep_all', params)
+            rv = self.rpc_wallet("sweep_all", params)
 
-            return bytes.fromhex(rv['tx_hash_list'][0])
+            return bytes.fromhex(rv["tx_hash_list"][0])
 
-    def withdrawCoin(self, value, addr_to: str, sweepall: bool, estimate_fee: bool = False) -> str:
+    def withdrawCoin(
+        self, value, addr_to: str, sweepall: bool, estimate_fee: bool = False
+    ) -> str:
         with self._mx_wallet:
             self.openWallet(self._wallet_filename)
-            self.rpc_wallet('refresh')
+            self.rpc_wallet("refresh")
 
             if sweepall:
-                balance = self.rpc_wallet('get_balance')
-                if balance['balance'] != balance['unlocked_balance']:
-                    raise ValueError('Balance must be fully confirmed to use sweep all.')
-                self._log.info('{} {} sweep_all.'.format(self.ticker_str(), 'estimate fee' if estimate_fee else 'withdraw'))
-                self._log.debug('{} balance: {}'.format(self.ticker_str(), balance['balance']))
-                params = {'address': addr_to, 'do_not_relay': estimate_fee, 'subaddr_indices_all': True}
+                balance = self.rpc_wallet("get_balance")
+                if balance["balance"] != balance["unlocked_balance"]:
+                    raise ValueError(
+                        "Balance must be fully confirmed to use sweep all."
+                    )
+                self._log.info(
+                    "{} {} sweep_all.".format(
+                        self.ticker_str(),
+                        "estimate fee" if estimate_fee else "withdraw",
+                    )
+                )
+                self._log.debug(
+                    "{} balance: {}".format(self.ticker_str(), balance["balance"])
+                )
+                params = {
+                    "address": addr_to,
+                    "do_not_relay": estimate_fee,
+                    "subaddr_indices_all": True,
+                }
                 if self._fee_priority > 0:
-                    params['priority'] = self._fee_priority
-                rv = self.rpc_wallet('sweep_all', params)
+                    params["priority"] = self._fee_priority
+                rv = self.rpc_wallet("sweep_all", params)
                 if estimate_fee:
-                    return {'num_txns': len(rv['fee_list']), 'sum_amount': sum(rv['amount_list']), 'sum_fee': sum(rv['fee_list']), 'sum_weight': sum(rv['weight_list'])}
-                return rv['tx_hash_list'][0]
+                    return {
+                        "num_txns": len(rv["fee_list"]),
+                        "sum_amount": sum(rv["amount_list"]),
+                        "sum_fee": sum(rv["fee_list"]),
+                        "sum_weight": sum(rv["weight_list"]),
+                    }
+                return rv["tx_hash_list"][0]
 
             value_sats: int = self.make_int(value)
-            params = {'destinations': [{'amount': value_sats, 'address': addr_to}], 'do_not_relay': estimate_fee}
+            params = {
+                "destinations": [{"amount": value_sats, "address": addr_to}],
+                "do_not_relay": estimate_fee,
+            }
             if self._fee_priority > 0:
-                params['priority'] = self._fee_priority
-            rv = self.rpc_wallet('transfer', params)
+                params["priority"] = self._fee_priority
+            rv = self.rpc_wallet("transfer", params)
             if estimate_fee:
-                return {'num_txns': 1, 'sum_amount': rv['amount'], 'sum_fee': rv['fee'], 'sum_weight': rv['weight']}
-            return rv['tx_hash']
+                return {
+                    "num_txns": 1,
+                    "sum_amount": rv["amount"],
+                    "sum_fee": rv["fee"],
+                    "sum_weight": rv["weight"],
+                }
+            return rv["tx_hash"]
 
     def estimateFee(self, value: int, addr_to: str, sweepall: bool) -> str:
         return self.withdrawCoin(value, addr_to, sweepall, estimate_fee=True)
@@ -512,7 +649,7 @@ class XMRInterface(CoinInterface):
             try:
                 Kbv = self.getPubkey(kbv)
                 address_b58 = xmr_util.encode_address(Kbv, Kbs, self._addr_prefix)
-                wallet_file = address_b58 + '_spend'
+                wallet_file = address_b58 + "_spend"
                 try:
                     self.openWallet(wallet_file)
                 except Exception:
@@ -520,54 +657,62 @@ class XMRInterface(CoinInterface):
                     try:
                         self.openWallet(wallet_file)
                     except Exception:
-                        self._log.info(f'showLockTransfers trying to create wallet for address {address_b58}.')
+                        self._log.info(
+                            f"showLockTransfers trying to create wallet for address {address_b58}."
+                        )
                         kbv_le = kbv[::-1]
                         params = {
-                            'restore_height': restore_height,
-                            'filename': address_b58,
-                            'address': address_b58,
-                            'viewkey': b2h(kbv_le),
+                            "restore_height": restore_height,
+                            "filename": address_b58,
+                            "address": address_b58,
+                            "viewkey": b2h(kbv_le),
                         }
                         self.createWallet(params)
                         self.openWallet(address_b58)
 
-                self.rpc_wallet('refresh')
+                self.rpc_wallet("refresh")
 
-                rv = self.rpc_wallet('get_transfers', {'in': True, 'out': True, 'pending': True, 'failed': True})
-                rv['filename'] = wallet_file
+                rv = self.rpc_wallet(
+                    "get_transfers",
+                    {"in": True, "out": True, "pending": True, "failed": True},
+                )
+                rv["filename"] = wallet_file
                 return rv
             except Exception as e:
-                return {'error': str(e)}
+                return {"error": str(e)}
 
     def getSpendableBalance(self) -> int:
         with self._mx_wallet:
             self.openWallet(self._wallet_filename)
 
-            self.rpc_wallet('refresh')
-            balance_info = self.rpc_wallet('get_balance')
-            return balance_info['unlocked_balance']
+            self.rpc_wallet("refresh")
+            balance_info = self.rpc_wallet("get_balance")
+            return balance_info["unlocked_balance"]
 
     def changeWalletPassword(self, old_password, new_password):
-        self._log.info('changeWalletPassword - {}'.format(self.ticker()))
+        self._log.info("changeWalletPassword - {}".format(self.ticker()))
         orig_password = self._wallet_password
-        if old_password != '':
+        if old_password != "":
             self._wallet_password = old_password
         try:
             self.openWallet(self._wallet_filename)
-            self.rpc_wallet('change_wallet_password', {'old_password': old_password, 'new_password': new_password})
+            self.rpc_wallet(
+                "change_wallet_password",
+                {"old_password": old_password, "new_password": new_password},
+            )
         except Exception as e:
             self._wallet_password = orig_password
             raise e
 
     def unlockWallet(self, password: str) -> None:
-        self._log.info('unlockWallet - {}'.format(self.ticker()))
+        self._log.info("unlockWallet - {}".format(self.ticker()))
         self._wallet_password = password
 
         if not self._have_checked_seed:
             self._sc.checkWalletSeed(self.coin_type())
 
     def lockWallet(self) -> None:
-        self._log.info('lockWallet - {}'.format(self.ticker()))
+        self._log.info("lockWallet - {}".format(self.ticker()))
         self._wallet_password = None
 
     def isAddressMine(self, address):
@@ -576,7 +721,14 @@ class XMRInterface(CoinInterface):
 
     def ensureFunds(self, amount: int) -> None:
         if self.getSpendableBalance() < amount:
-            raise ValueError('Balance too low')
+            raise ValueError("Balance too low")
 
     def getTransaction(self, txid: bytes):
-        return self.rpc2('get_transactions', {'txs_hashes': [txid.hex(), ]})
+        return self.rpc2(
+            "get_transactions",
+            {
+                "txs_hashes": [
+                    txid.hex(),
+                ]
+            },
+        )