No longer inheriting from object and added proper use of super().

lbrynet/analytics.py

@@ -24,7 +24,7 @@ BLOB_BYTES_UPLOADED = 'Blob Bytes Uploaded'
 log = logging.getLogger(__name__)
 
 
-class Manager(object):
+class Manager:
     def __init__(self, analytics_api, context=None, installation_id=None, session_id=None):
         self.analytics_api = analytics_api
         self._tracked_data = collections.defaultdict(list)
@@ -219,7 +219,7 @@ class Manager(object):
             callback(maybe_deferred, *args, **kwargs)
 
 
-class Api(object):
+class Api:
     def __init__(self, cookies, url, write_key, enabled):
         self.cookies = cookies
         self.url = url

lbrynet/blob/blob_file.py

@@ -13,7 +13,7 @@ log = logging.getLogger(__name__)
 MAX_BLOB_SIZE = 2 * 2 ** 20
 
 
-class BlobFile(object):
+class BlobFile:
     """
     A chunk of data available on the network which is specified by a hashsum
 

lbrynet/blob/creator.py

@@ -8,7 +8,7 @@ from lbrynet.core.cryptoutils import get_lbry_hash_obj
 log = logging.getLogger(__name__)
 
 
-class BlobFileCreator(object):
+class BlobFileCreator:
     """
     This class is used to create blobs on the local filesystem
     when we do not know the blob hash beforehand (i.e, when creating

lbrynet/blob/reader.py

@@ -3,7 +3,7 @@ import logging
 log = logging.getLogger(__name__)
 
 
-class HashBlobReader(object):
+class HashBlobReader:
     """
     This is a file like reader class that supports
     read(size) and close()

lbrynet/blob/writer.py

@@ -7,7 +7,7 @@ from lbrynet.core.cryptoutils import get_lbry_hash_obj
 log = logging.getLogger(__name__)
 
 
-class HashBlobWriter(object):
+class HashBlobWriter:
     def __init__(self, length_getter, finished_cb):
         self.write_handle = BytesIO()
         self.length_getter = length_getter

lbrynet/conf.py

@@ -164,11 +164,11 @@ class Env(envparse.Env):
             self._convert_key(key): self._convert_value(value)
             for key, value in schema.items()
             }
-        envparse.Env.__init__(self, **my_schema)
+        super().__init__(**my_schema)
 
     def __call__(self, key, *args, **kwargs):
         my_key = self._convert_key(key)
-        return super(Env, self).__call__(my_key, *args, **kwargs)
+        return super().__call__(my_key, *args, **kwargs)
 
     @staticmethod
     def _convert_key(key):
@@ -289,7 +289,7 @@ ADJUSTABLE_SETTINGS = {
 }
 
 
-class Config(object):
+class Config:
     def __init__(self, fixed_defaults, adjustable_defaults, persisted_settings=None,
                  environment=None, cli_settings=None):
 

lbrynet/core/BlobAvailability.py

@@ -9,7 +9,7 @@ from decimal import Decimal
 log = logging.getLogger(__name__)
 
 
-class BlobAvailabilityTracker(object):
+class BlobAvailabilityTracker:
     """
     Class to track peer counts for known blobs, and to discover new popular blobs
 

lbrynet/core/BlobInfo.py

@@ -1,4 +1,4 @@
-class BlobInfo(object):
+class BlobInfo:
     """
     This structure is used to represent the metadata of a blob.
 

lbrynet/core/BlobManager.py

@@ -8,7 +8,7 @@ from lbrynet.blob.creator import BlobFileCreator
 log = logging.getLogger(__name__)
 
 
-class DiskBlobManager(object):
+class DiskBlobManager:
     def __init__(self, blob_dir, storage, node_datastore=None):
         """
         This class stores blobs on the hard disk

lbrynet/core/DownloadOption.py

@@ -1,4 +1,4 @@
-class DownloadOptionChoice(object):
+class DownloadOptionChoice:
     """A possible choice that can be picked for some option.
 
     An option can have one or more choices that can be picked from.
@@ -10,7 +10,7 @@ class DownloadOptionChoice(object):
         self.bool_options_description = bool_options_description
 
 
-class DownloadOption(object):
+class DownloadOption:
     """An option for a user to select a value from several different choices."""
     def __init__(self, option_types, long_description, short_description, default_value,
                  default_value_description):

lbrynet/core/Error.py

@@ -12,19 +12,19 @@ class DownloadCanceledError(Exception):
 
 class DownloadSDTimeout(Exception):
     def __init__(self, download):
-        Exception.__init__(self, 'Failed to download sd blob {} within timeout'.format(download))
+        super().__init__('Failed to download sd blob {} within timeout'.format(download))
         self.download = download
 
 
 class DownloadTimeoutError(Exception):
     def __init__(self, download):
-        Exception.__init__(self, 'Failed to download {} within timeout'.format(download))
+        super().__init__('Failed to download {} within timeout'.format(download))
         self.download = download
 
 
 class DownloadDataTimeout(Exception):
     def __init__(self, download):
-        Exception.__init__(self, 'Failed to download data blobs for sd hash '
+        super().__init__('Failed to download data blobs for sd hash '
                                  '{} within timeout'.format(download))
         self.download = download
 
@@ -55,39 +55,39 @@ class KeyFeeAboveMaxAllowed(Exception):
 
 class InvalidExchangeRateResponse(Exception):
     def __init__(self, source, reason):
-        Exception.__init__(self, 'Failed to get exchange rate from {}:{}'.format(source, reason))
+        super().__init__('Failed to get exchange rate from {}:{}'.format(source, reason))
         self.source = source
         self.reason = reason
 
 
 class UnknownNameError(Exception):
     def __init__(self, name):
-        Exception.__init__(self, 'Name {} is unknown'.format(name))
+        super().__init__('Name {} is unknown'.format(name))
         self.name = name
 
 
 class UnknownClaimID(Exception):
     def __init__(self, claim_id):
-        Exception.__init__(self, 'Claim {} is unknown'.format(claim_id))
+        super().__init__('Claim {} is unknown'.format(claim_id))
         self.claim_id = claim_id
 
 
 class UnknownURI(Exception):
     def __init__(self, uri):
-        Exception.__init__(self, 'URI {} cannot be resolved'.format(uri))
+        super().__init__('URI {} cannot be resolved'.format(uri))
         self.name = uri
 
 class UnknownOutpoint(Exception):
     def __init__(self, outpoint):
-        Exception.__init__(self, 'Outpoint {} cannot be resolved'.format(outpoint))
+        super().__init__('Outpoint {} cannot be resolved'.format(outpoint))
         self.outpoint = outpoint
 
 class InvalidName(Exception):
     def __init__(self, name, invalid_characters):
         self.name = name
         self.invalid_characters = invalid_characters
-        Exception.__init__(
-            self, 'URI contains invalid characters: {}'.format(','.join(invalid_characters)))
+        super().__init__(
+            'URI contains invalid characters: {}'.format(','.join(invalid_characters)))
 
 
 class UnknownStreamTypeError(Exception):
@@ -105,7 +105,7 @@ class InvalidStreamDescriptorError(Exception):
 class InvalidStreamInfoError(Exception):
     def __init__(self, name, stream_info):
         msg = '{} has claim with invalid stream info: {}'.format(name, stream_info)
-        Exception.__init__(self, msg)
+        super().__init__(msg)
         self.name = name
         self.stream_info = stream_info
 
@@ -159,14 +159,14 @@ class NegotiationError(Exception):
 class InvalidCurrencyError(Exception):
     def __init__(self, currency):
         self.currency = currency
-        Exception.__init__(
-            self, 'Invalid currency: {} is not a supported currency.'.format(currency))
+        super().__init__(
+            'Invalid currency: {} is not a supported currency.'.format(currency))
 
 
 class NoSuchDirectoryError(Exception):
     def __init__(self, directory):
         self.directory = directory
-        Exception.__init__(self, 'No such directory {}'.format(directory))
+        super().__init__('No such directory {}'.format(directory))
 
 
 class ComponentStartConditionNotMet(Exception):

lbrynet/core/Offer.py

@@ -1,7 +1,7 @@
 from decimal import Decimal
 
 
-class Offer(object):
+class Offer:
     """A rate offer to download blobs from a host."""
 
     RATE_ACCEPTED = "RATE_ACCEPTED"

lbrynet/core/PaymentRateManager.py

@@ -3,14 +3,14 @@ from lbrynet import conf
 from decimal import Decimal
 
 
-class BasePaymentRateManager(object):
+class BasePaymentRateManager:
     def __init__(self, rate=None, info_rate=None):
         self.min_blob_data_payment_rate = rate if rate is not None else conf.settings['data_rate']
         self.min_blob_info_payment_rate = (
             info_rate if info_rate is not None else conf.settings['min_info_rate'])
 
 
-class PaymentRateManager(object):
+class PaymentRateManager:
     def __init__(self, base, rate=None):
         """
         @param base: a BasePaymentRateManager
@@ -36,7 +36,7 @@ class PaymentRateManager(object):
         self.points_paid += amount
 
 
-class NegotiatedPaymentRateManager(object):
+class NegotiatedPaymentRateManager:
     def __init__(self, base, availability_tracker, generous=None):
         """
         @param base: a BasePaymentRateManager
@@ -84,7 +84,7 @@ class NegotiatedPaymentRateManager(object):
         return False
 
 
-class OnlyFreePaymentsManager(object):
+class OnlyFreePaymentsManager:
     def __init__(self, **kwargs):
         """
         A payment rate manager that will only ever accept and offer a rate of 0.0,

lbrynet/core/Peer.py

@@ -3,7 +3,7 @@ from collections import defaultdict
 from lbrynet.core import utils
 
 # Do not create this object except through PeerManager
-class Peer(object):
+class Peer:
     def __init__(self, host, port):
         self.host = host
         self.port = port

lbrynet/core/PeerManager.py

@@ -1,7 +1,7 @@
 from lbrynet.core.Peer import Peer
 
 
-class PeerManager(object):
+class PeerManager:
     def __init__(self):
         self.peers = []
 

lbrynet/core/PriceModel.py

@@ -9,7 +9,7 @@ def get_default_price_model(blob_tracker, base_price, **kwargs):
     return MeanAvailabilityWeightedPrice(blob_tracker, base_price, **kwargs)
 
 
-class ZeroPrice(object):
+class ZeroPrice:
     def __init__(self):
         self.base_price = 0.0
 
@@ -17,7 +17,7 @@ class ZeroPrice(object):
         return 0.0
 
 
-class MeanAvailabilityWeightedPrice(object):
+class MeanAvailabilityWeightedPrice:
     """Calculate mean-blob-availability and stream-position weighted price for a blob
 
     Attributes:

lbrynet/core/RateLimiter.py

@@ -6,7 +6,7 @@ from twisted.internet import task
 log = logging.getLogger(__name__)
 
 
-class DummyRateLimiter(object):
+class DummyRateLimiter:
     def __init__(self):
         self.dl_bytes_this_second = 0
         self.ul_bytes_this_second = 0
@@ -44,7 +44,7 @@ class DummyRateLimiter(object):
         self.total_ul_bytes += num_bytes
 
 
-class RateLimiter(object):
+class RateLimiter:
     """This class ensures that upload and download rates don't exceed specified maximums"""
 
     #implements(IRateLimiter)

lbrynet/core/SinglePeerDownloader.py

@@ -19,7 +19,7 @@ log = logging.getLogger(__name__)
 
 class SinglePeerFinder(DummyPeerFinder):
     def __init__(self, peer):
-        DummyPeerFinder.__init__(self)
+        super().__init__()
         self.peer = peer
 
     def find_peers_for_blob(self, blob_hash, timeout=None, filter_self=False):
@@ -28,7 +28,7 @@ class SinglePeerFinder(DummyPeerFinder):
 
 class BlobCallback(BlobFile):
     def __init__(self, blob_dir, blob_hash, timeout):
-        BlobFile.__init__(self, blob_dir, blob_hash)
+        super().__init__(blob_dir, blob_hash)
         self.callback = defer.Deferred()
         reactor.callLater(timeout, self._cancel)
 
@@ -43,7 +43,7 @@ class BlobCallback(BlobFile):
         return result
 
 
-class SingleBlobDownloadManager(object):
+class SingleBlobDownloadManager:
     def __init__(self, blob):
         self.blob = blob
 
@@ -57,7 +57,7 @@ class SingleBlobDownloadManager(object):
         return self.blob.blob_hash
 
 
-class SinglePeerDownloader(object):
+class SinglePeerDownloader:
     def __init__(self):
         self._payment_rate_manager = OnlyFreePaymentsManager()
         self._rate_limiter = DummyRateLimiter()

lbrynet/core/Strategy.py

@@ -10,7 +10,7 @@ def get_default_strategy(blob_tracker, **kwargs):
     return BasicAvailabilityWeightedStrategy(blob_tracker, **kwargs)
 
 
-class Strategy(object):
+class Strategy:
     """
     Base for negotiation strategies
     """
@@ -109,7 +109,7 @@ class BasicAvailabilityWeightedStrategy(Strategy):
                  base_price=0.0001, alpha=1.0):
         price_model = MeanAvailabilityWeightedPrice(
             blob_tracker, base_price=base_price, alpha=alpha)
-        Strategy.__init__(self, price_model, max_rate, min_rate, is_generous)
+        super().__init__(price_model, max_rate, min_rate, is_generous)
         self._acceleration = Decimal(acceleration)  # rate of how quickly to ramp offer
         self._deceleration = Decimal(deceleration)
 
@@ -140,7 +140,7 @@ class OnlyFreeStrategy(Strategy):
     implementer(INegotiationStrategy)
     def __init__(self, *args, **kwargs):
         price_model = ZeroPrice()
-        Strategy.__init__(self, price_model, 0.0, 0.0, True)
+        super().__init__(price_model, 0.0, 0.0, True)
 
     def _get_mean_rate(self, rates):
         return 0.0

lbrynet/core/StreamDescriptor.py

@@ -12,7 +12,7 @@ from lbrynet.core.HTTPBlobDownloader import HTTPBlobDownloader
 log = logging.getLogger(__name__)
 
 
-class StreamDescriptorReader(object):
+class StreamDescriptorReader:
     """Classes which derive from this class read a stream descriptor file return
        a dictionary containing the fields in the file"""
     def __init__(self):
@@ -33,7 +33,7 @@ class StreamDescriptorReader(object):
 class PlainStreamDescriptorReader(StreamDescriptorReader):
     """Read a stream descriptor file which is not a blob but a regular file"""
     def __init__(self, stream_descriptor_filename):
-        StreamDescriptorReader.__init__(self)
+        super().__init__()
         self.stream_descriptor_filename = stream_descriptor_filename
 
     def _get_raw_data(self):
@@ -49,7 +49,7 @@ class PlainStreamDescriptorReader(StreamDescriptorReader):
 class BlobStreamDescriptorReader(StreamDescriptorReader):
     """Read a stream descriptor file which is a blob"""
     def __init__(self, blob):
-        StreamDescriptorReader.__init__(self)
+        super().__init__()
         self.blob = blob
 
     def _get_raw_data(self):
@@ -76,7 +76,7 @@ def bytes2unicode(value):
     return value
 
 
-class StreamDescriptorWriter(object):
+class StreamDescriptorWriter:
     """Classes which derive from this class write fields from a dictionary
        of fields to a stream descriptor"""
     def __init__(self):
@@ -94,7 +94,7 @@ class StreamDescriptorWriter(object):
 
 class PlainStreamDescriptorWriter(StreamDescriptorWriter):
     def __init__(self, sd_file_name):
-        StreamDescriptorWriter.__init__(self)
+        super().__init__()
         self.sd_file_name = sd_file_name
 
     def _write_stream_descriptor(self, raw_data):
@@ -110,7 +110,7 @@ class PlainStreamDescriptorWriter(StreamDescriptorWriter):
 
 class BlobStreamDescriptorWriter(StreamDescriptorWriter):
     def __init__(self, blob_manager):
-        StreamDescriptorWriter.__init__(self)
+        super().__init__()
         self.blob_manager = blob_manager
 
     @defer.inlineCallbacks
@@ -124,7 +124,7 @@ class BlobStreamDescriptorWriter(StreamDescriptorWriter):
         defer.returnValue(sd_hash)
 
 
-class StreamMetadata(object):
+class StreamMetadata:
     FROM_BLOB = 1
     FROM_PLAIN = 2
 
@@ -137,7 +137,7 @@ class StreamMetadata(object):
         self.source_file = None
 
 
-class StreamDescriptorIdentifier(object):
+class StreamDescriptorIdentifier:
     """Tries to determine the type of stream described by the stream descriptor using the
        'stream_type' field. Keeps a list of StreamDescriptorValidators and StreamDownloaderFactorys
        and returns the appropriate ones based on the type of the stream descriptor given
@@ -407,7 +407,7 @@ def validate_descriptor(stream_info):
     return True
 
 
-class EncryptedFileStreamDescriptorValidator(object):
+class EncryptedFileStreamDescriptorValidator:
     def __init__(self, raw_info):
         self.raw_info = raw_info
 

lbrynet/core/Wallet.py

@@ -30,7 +30,7 @@ from lbrynet.core.Error import DownloadCanceledError, RequestCanceledError
 log = logging.getLogger(__name__)
 
 
-class ReservedPoints(object):
+class ReservedPoints:
     def __init__(self, identifier, amount):
         self.identifier = identifier
         self.amount = amount
@@ -62,7 +62,7 @@ class ClaimOutpoint(dict):
         return not self.__eq__(compare)
 
 
-class Wallet(object):
+class Wallet:
     """This class implements the Wallet interface for the LBRYcrd payment system"""
     implements(IWallet)
 
@@ -819,7 +819,7 @@ class Wallet(object):
 
 class LBRYumWallet(Wallet):
     def __init__(self, storage, config=None):
-        Wallet.__init__(self, storage)
+        super().__init__(storage)
         self._config = config
         self.config = make_config(self._config)
         self.network = None
@@ -1228,7 +1228,7 @@ class LBRYumWallet(Wallet):
         return not self.wallet.use_encryption
 
 
-class LBRYcrdAddressRequester(object):
+class LBRYcrdAddressRequester:
     implements([IRequestCreator])
 
     def __init__(self, wallet):
@@ -1266,7 +1266,7 @@ class LBRYcrdAddressRequester(object):
             return err
 
 
-class LBRYcrdAddressQueryHandlerFactory(object):
+class LBRYcrdAddressQueryHandlerFactory:
     implements(IQueryHandlerFactory)
 
     def __init__(self, wallet):
@@ -1285,7 +1285,7 @@ class LBRYcrdAddressQueryHandlerFactory(object):
         return "LBRYcrd Address - an address for receiving payments via LBRYcrd"
 
 
-class LBRYcrdAddressQueryHandler(object):
+class LBRYcrdAddressQueryHandler:
     implements(IQueryHandler)
 
     def __init__(self, wallet):

lbrynet/core/call_later_manager.py

@@ -8,7 +8,7 @@ DELAY_INCREMENT = 0.0001
 QUEUE_SIZE_THRESHOLD = 100
 
 
-class CallLaterManager(object):
+class CallLaterManager:
     def __init__(self, callLater):
         """
         :param callLater: (IReactorTime.callLater)

lbrynet/core/client/BlobRequester.py

@@ -37,7 +37,7 @@ def cache(fn):
     return helper
 
 
-class BlobRequester(object):
+class BlobRequester:
     #implements(IRequestCreator)
 
     def __init__(self, blob_manager, peer_finder, payment_rate_manager, wallet, download_manager):
@@ -193,7 +193,7 @@ class BlobRequester(object):
         self._peers[peer] += amount
 
 
-class RequestHelper(object):
+class RequestHelper:
     def __init__(self, requestor, peer, protocol, payment_rate_manager):
         self.requestor = requestor
         self.peer = peer
@@ -427,7 +427,7 @@ class PriceRequest(RequestHelper):
 class DownloadRequest(RequestHelper):
     """Choose a blob and download it from a peer and also pay the peer for the data."""
     def __init__(self, requester, peer, protocol, payment_rate_manager, wallet, head_blob_hash):
-        RequestHelper.__init__(self, requester, peer, protocol, payment_rate_manager)
+        super().__init__(requester, peer, protocol, payment_rate_manager)
         self.wallet = wallet
         self.head_blob_hash = head_blob_hash
 
@@ -576,7 +576,7 @@ class DownloadRequest(RequestHelper):
         return reason
 
 
-class BlobDownloadDetails(object):
+class BlobDownloadDetails:
     """Contains the information needed to make a ClientBlobRequest from an open blob"""
     def __init__(self, blob, deferred, write_func, cancel_func, peer):
         self.blob = blob

lbrynet/core/client/ClientRequest.py

@@ -1,7 +1,7 @@
 from lbrynet.blob.blob_file import MAX_BLOB_SIZE
 
 
-class ClientRequest(object):
+class ClientRequest:
     def __init__(self, request_dict, response_identifier=None):
         self.request_dict = request_dict
         self.response_identifier = response_identifier
@@ -9,7 +9,7 @@ class ClientRequest(object):
 
 class ClientPaidRequest(ClientRequest):
     def __init__(self, request_dict, response_identifier, max_pay_units):
-        ClientRequest.__init__(self, request_dict, response_identifier)
+        super().__init__(request_dict, response_identifier)
         self.max_pay_units = max_pay_units
 
 
@@ -20,7 +20,7 @@ class ClientBlobRequest(ClientPaidRequest):
             max_pay_units = MAX_BLOB_SIZE
         else:
             max_pay_units = blob.length
-        ClientPaidRequest.__init__(self, request_dict, response_identifier, max_pay_units)
+        super().__init__(request_dict, response_identifier, max_pay_units)
         self.write = write_func
         self.finished_deferred = finished_deferred
         self.cancel = cancel_func

lbrynet/core/client/ConnectionManager.py

@@ -9,14 +9,14 @@ from lbrynet.core import utils
 log = logging.getLogger(__name__)
 
 
-class PeerConnectionHandler(object):
+class PeerConnectionHandler:
     def __init__(self, request_creators, factory):
         self.request_creators = request_creators
         self.factory = factory
         self.connection = None
 
 
-class ConnectionManager(object):
+class ConnectionManager:
     #implements(interfaces.IConnectionManager)
     MANAGE_CALL_INTERVAL_SEC = 5
     TCP_CONNECT_TIMEOUT = 15

lbrynet/core/client/DownloadManager.py

@@ -5,7 +5,7 @@ from twisted.internet import defer
 log = logging.getLogger(__name__)
 
 
-class DownloadManager(object):
+class DownloadManager:
     #implements(interfaces.IDownloadManager)
 
     def __init__(self, blob_manager):

lbrynet/core/client/StandaloneBlobDownloader.py

@@ -12,7 +12,7 @@ from twisted.internet.task import LoopingCall
 log = logging.getLogger(__name__)
 
 
-class SingleBlobMetadataHandler(object):
+class SingleBlobMetadataHandler:
     #implements(interfaces.IMetadataHandler)
 
     def __init__(self, blob_hash, download_manager):
@@ -29,7 +29,7 @@ class SingleBlobMetadataHandler(object):
         return 0
 
 
-class SingleProgressManager(object):
+class SingleProgressManager:
     def __init__(self, download_manager, finished_callback, timeout_callback, timeout):
         self.finished_callback = finished_callback
         self.timeout_callback = timeout_callback
@@ -72,7 +72,7 @@ class SingleProgressManager(object):
         return [b for b in blobs.values() if not b.get_is_verified()]
 
 
-class DummyBlobHandler(object):
+class DummyBlobHandler:
     def __init__(self):
         pass
 
@@ -80,7 +80,7 @@ class DummyBlobHandler(object):
         pass
 
 
-class StandaloneBlobDownloader(object):
+class StandaloneBlobDownloader:
     def __init__(self, blob_hash, blob_manager, peer_finder,
                  rate_limiter, payment_rate_manager, wallet,
                  timeout=None):

lbrynet/core/client/StreamProgressManager.py

@@ -5,7 +5,7 @@ from twisted.internet import defer
 log = logging.getLogger(__name__)
 
 
-class StreamProgressManager(object):
+class StreamProgressManager:
     #implements(IProgressManager)
 
     def __init__(self, finished_callback, blob_manager,
@@ -80,8 +80,8 @@ class StreamProgressManager(object):
 class FullStreamProgressManager(StreamProgressManager):
     def __init__(self, finished_callback, blob_manager,
                  download_manager, delete_blob_after_finished=False):
-        StreamProgressManager.__init__(self, finished_callback, blob_manager, download_manager,
-                                       delete_blob_after_finished)
+        super().__init__(finished_callback, blob_manager, download_manager,
+                         delete_blob_after_finished)
         self.outputting_d = None
 
     ######### IProgressManager #########

lbrynet/core/log_support.py

@@ -14,7 +14,7 @@ from lbrynet.core import utils
 
 class HTTPSHandler(logging.Handler):
     def __init__(self, url, fqdn=False, localname=None, facility=None, cookies=None):
-        logging.Handler.__init__(self)
+        super().__init__()
         self.url = url
         self.fqdn = fqdn
         self.localname = localname
@@ -243,7 +243,7 @@ def configure_twisted():
     observer.start()
 
 
-class LoggerNameFilter(object):
+class LoggerNameFilter:
     """Filter a log record based on its name.
 
     Allows all info level and higher records to pass thru.

lbrynet/core/looping_call_manager.py

@@ -1,4 +1,4 @@
-class LoopingCallManager(object):
+class LoopingCallManager:
     def __init__(self, calls=None):
         self.calls = calls or {}
 

lbrynet/core/server/BlobAvailabilityHandler.py

@@ -7,7 +7,7 @@ from lbrynet.interfaces import IQueryHandlerFactory, IQueryHandler
 log = logging.getLogger(__name__)
 
 
-class BlobAvailabilityHandlerFactory(object):
+class BlobAvailabilityHandlerFactory:
     implements(IQueryHandlerFactory)
 
     def __init__(self, blob_manager):
@@ -26,7 +26,7 @@ class BlobAvailabilityHandlerFactory(object):
         return "Blob Availability - blobs that are available to be uploaded"
 
 
-class BlobAvailabilityHandler(object):
+class BlobAvailabilityHandler:
     implements(IQueryHandler)
 
     def __init__(self, blob_manager):

lbrynet/core/server/BlobRequestHandler.py

@@ -10,7 +10,7 @@ from lbrynet.core.Offer import Offer
 log = logging.getLogger(__name__)
 
 
-class BlobRequestHandlerFactory(object):
+class BlobRequestHandlerFactory:
     #implements(IQueryHandlerFactory)
 
     def __init__(self, blob_manager, wallet, payment_rate_manager, analytics_manager):
@@ -33,7 +33,7 @@ class BlobRequestHandlerFactory(object):
         return "Blob Uploader - uploads blobs"
 
 
-class BlobRequestHandler(object):
+class BlobRequestHandler:
     #implements(IQueryHandler, IBlobSender)
     PAYMENT_RATE_QUERY = 'blob_data_payment_rate'
     BLOB_QUERY = 'requested_blob'

lbrynet/core/server/ServerRequestHandler.py

@@ -6,7 +6,7 @@ from twisted.internet import defer
 log = logging.getLogger(__name__)
 
 
-class ServerRequestHandler(object):
+class ServerRequestHandler:
     """This class handles requests from clients. It can upload blobs and
     return request for information about more blobs that are
     associated with streams.

lbrynet/core/utils.py

@@ -155,7 +155,7 @@ def json_dumps_pretty(obj, **kwargs):
     return json.dumps(obj, sort_keys=True, indent=2, separators=(',', ': '), **kwargs)
 
 
-class DeferredLockContextManager(object):
+class DeferredLockContextManager:
     def __init__(self, lock):
         self._lock = lock
 
@@ -181,7 +181,7 @@ def DeferredDict(d, consumeErrors=False):
     defer.returnValue(response)
 
 
-class DeferredProfiler(object):
+class DeferredProfiler:
     def __init__(self):
         self.profile_results = {}
 

lbrynet/cryptstream/CryptBlob.py

@@ -16,7 +16,7 @@ backend = default_backend()
 
 class CryptBlobInfo(BlobInfo):
     def __init__(self, blob_hash, blob_num, length, iv):
-        BlobInfo.__init__(self, blob_hash, blob_num, length)
+        super().__init__(blob_hash, blob_num, length)
         self.iv = iv
 
     def get_dict(self):
@@ -30,7 +30,7 @@ class CryptBlobInfo(BlobInfo):
         return info
 
 
-class StreamBlobDecryptor(object):
+class StreamBlobDecryptor:
     def __init__(self, blob, key, iv, length):
         """
         This class decrypts blob
@@ -99,7 +99,7 @@ class StreamBlobDecryptor(object):
         return d
 
 
-class CryptStreamBlobMaker(object):
+class CryptStreamBlobMaker:
     def __init__(self, key, iv, blob_num, blob):
         """
         This class encrypts data and writes it to a new blob

lbrynet/cryptstream/CryptStreamCreator.py

@@ -12,7 +12,7 @@ from lbrynet.cryptstream.CryptBlob import CryptStreamBlobMaker
 log = logging.getLogger(__name__)
 
 
-class CryptStreamCreator(object):
+class CryptStreamCreator:
     """
     Create a new stream with blobs encrypted by a symmetric cipher.
 

lbrynet/cryptstream/client/CryptBlobHandler.py

@@ -3,7 +3,7 @@ from twisted.internet import defer
 from lbrynet.cryptstream.CryptBlob import StreamBlobDecryptor
 
 
-class CryptBlobHandler(object):
+class CryptBlobHandler:
     #implements(IBlobHandler)
 
     def __init__(self, key, write_func):

lbrynet/cryptstream/client/CryptStreamDownloader.py

@@ -32,7 +32,7 @@ class CurrentlyStartingError(Exception):
     pass
 
 
-class CryptStreamDownloader(object):
+class CryptStreamDownloader:
 
     #implements(IStreamDownloader)
 

lbrynet/daemon/Component.py

@@ -14,7 +14,7 @@ class ComponentType(type):
         return klass
 
 
-class Component(object, metaclass=ComponentType):
+class Component(metaclass=ComponentType):
     """
     lbrynet-daemon component helper
 

lbrynet/daemon/Components.py

@@ -68,7 +68,7 @@ def get_wallet_config():
     return config
 
 
-class ConfigSettings(object):
+class ConfigSettings:
     @staticmethod
     def get_conf_setting(setting_name):
         return conf.settings[setting_name]
@@ -101,7 +101,7 @@ class DatabaseComponent(Component):
     component_name = DATABASE_COMPONENT
 
     def __init__(self, component_manager):
-        Component.__init__(self, component_manager)
+        super().__init__(component_manager)
         self.storage = None
 
     @property
@@ -306,7 +306,7 @@ class WalletComponent(Component):
     depends_on = [DATABASE_COMPONENT, HEADERS_COMPONENT]
 
     def __init__(self, component_manager):
-        Component.__init__(self, component_manager)
+        super().__init__(component_manager)
         self.wallet = None
 
     @property
@@ -329,6 +329,7 @@ class WalletComponent(Component):
 
     @defer.inlineCallbacks
     def start(self):
+        log.info("Starting torba wallet")
         storage = self.component_manager.get_component(DATABASE_COMPONENT)
         lbryschema.BLOCKCHAIN_NAME = conf.settings['blockchain_name']
         self.wallet = LbryWalletManager.from_old_config(conf.settings)
@@ -346,7 +347,7 @@ class BlobComponent(Component):
     depends_on = [DATABASE_COMPONENT, DHT_COMPONENT]
 
     def __init__(self, component_manager):
-        Component.__init__(self, component_manager)
+        super().__init__(component_manager)
         self.blob_manager = None
 
     @property
@@ -377,7 +378,7 @@ class DHTComponent(Component):
     depends_on = [UPNP_COMPONENT]
 
     def __init__(self, component_manager):
-        Component.__init__(self, component_manager)
+        super().__init__(component_manager)
         self.dht_node = None
         self.upnp_component = None
         self.external_udp_port = None
@@ -427,7 +428,7 @@ class HashAnnouncerComponent(Component):
     depends_on = [DHT_COMPONENT, DATABASE_COMPONENT]
 
     def __init__(self, component_manager):
-        Component.__init__(self, component_manager)
+        super().__init__(component_manager)
         self.hash_announcer = None
 
     @property
@@ -455,7 +456,7 @@ class RateLimiterComponent(Component):
     component_name = RATE_LIMITER_COMPONENT
 
     def __init__(self, component_manager):
-        Component.__init__(self, component_manager)
+        super().__init__(component_manager)
         self.rate_limiter = RateLimiter()
 
     @property
@@ -476,7 +477,7 @@ class StreamIdentifierComponent(Component):
     depends_on = [DHT_COMPONENT, RATE_LIMITER_COMPONENT, BLOB_COMPONENT, DATABASE_COMPONENT, WALLET_COMPONENT]
 
     def __init__(self, component_manager):
-        Component.__init__(self, component_manager)
+        super().__init__(component_manager)
         self.sd_identifier = StreamDescriptorIdentifier()
 
     @property
@@ -510,7 +511,7 @@ class PaymentRateComponent(Component):
     component_name = PAYMENT_RATE_COMPONENT
 
     def __init__(self, component_manager):
-        Component.__init__(self, component_manager)
+        super().__init__(component_manager)
         self.payment_rate_manager = OnlyFreePaymentsManager()
 
     @property
@@ -530,7 +531,7 @@ class FileManagerComponent(Component):
                   STREAM_IDENTIFIER_COMPONENT, PAYMENT_RATE_COMPONENT]
 
     def __init__(self, component_manager):
-        Component.__init__(self, component_manager)
+        super().__init__(component_manager)
         self.file_manager = None
 
     @property
@@ -570,7 +571,7 @@ class PeerProtocolServerComponent(Component):
                   PAYMENT_RATE_COMPONENT]
 
     def __init__(self, component_manager):
-        Component.__init__(self, component_manager)
+        super().__init__(component_manager)
         self.lbry_server_port = None
 
     @property
@@ -622,7 +623,7 @@ class ReflectorComponent(Component):
     depends_on = [DHT_COMPONENT, BLOB_COMPONENT, FILE_MANAGER_COMPONENT]
 
     def __init__(self, component_manager):
-        Component.__init__(self, component_manager)
+        super().__init__(component_manager)
         self.reflector_server_port = GCS('reflector_port')
         self.reflector_server = None
 
@@ -656,7 +657,7 @@ class UPnPComponent(Component):
     component_name = UPNP_COMPONENT
 
     def __init__(self, component_manager):
-        Component.__init__(self, component_manager)
+        super().__init__(component_manager)
         self._int_peer_port = GCS('peer_port')
         self._int_dht_node_port = GCS('dht_node_port')
         self.use_upnp = GCS('use_upnp')

lbrynet/daemon/Daemon.py

@@ -77,8 +77,7 @@ DIRECTION_ASCENDING = 'asc'
 DIRECTION_DESCENDING = 'desc'
 DIRECTIONS = DIRECTION_ASCENDING, DIRECTION_DESCENDING
 
-
-class IterableContainer(object):
+class IterableContainer:
     def __iter__(self):
         for attr in dir(self):
             if not attr.startswith("_"):
@@ -91,7 +90,7 @@ class IterableContainer(object):
         return False
 
 
-class Checker(object):
+class Checker:
     """The looping calls the daemon runs"""
     INTERNET_CONNECTION = 'internet_connection_checker', 300
     # CONNECTION_STATUS = 'connection_status_checker'
@@ -123,7 +122,7 @@ class NoValidSearch(Exception):
     pass
 
 
-class CheckInternetConnection(object):
+class CheckInternetConnection:
     def __init__(self, daemon):
         self.daemon = daemon
 
@@ -131,7 +130,7 @@ class CheckInternetConnection(object):
         self.daemon.connected_to_internet = utils.check_connection()
 
 
-class AlwaysSend(object):
+class AlwaysSend:
     def __init__(self, value_generator, *args, **kwargs):
         self.value_generator = value_generator
         self.args = args

lbrynet/daemon/Downloader.py

@@ -29,7 +29,7 @@ STREAM_STAGES = [
 log = logging.getLogger(__name__)
 
 
-class GetStream(object):
+class GetStream:
     def __init__(self, sd_identifier, wallet, exchange_rate_manager, blob_manager, peer_finder, rate_limiter,
                  payment_rate_manager, storage, max_key_fee, disable_max_key_fee, data_rate=None, timeout=None):
 

lbrynet/daemon/ExchangeRateManager.py

@@ -15,7 +15,7 @@ BITTREX_FEE = 0.0025
 COINBASE_FEE = 0.0  # add fee
 
 
-class ExchangeRate(object):
+class ExchangeRate:
     def __init__(self, market, spot, ts):
         if not int(time.time()) - ts < 600:
             raise ValueError('The timestamp is too dated.')
@@ -34,7 +34,7 @@ class ExchangeRate(object):
         return {'spot': self.spot, 'ts': self.ts}
 
 
-class MarketFeed(object):
+class MarketFeed:
     REQUESTS_TIMEOUT = 20
     EXCHANGE_RATE_UPDATE_RATE_SEC = 300
 
@@ -96,8 +96,7 @@ class MarketFeed(object):
 
 class BittrexFeed(MarketFeed):
     def __init__(self):
-        MarketFeed.__init__(
-            self,
+        super().__init__(
             "BTCLBC",
             "Bittrex",
             "https://bittrex.com/api/v1.1/public/getmarkethistory",
@@ -122,8 +121,7 @@ class BittrexFeed(MarketFeed):
 
 class LBRYioFeed(MarketFeed):
     def __init__(self):
-        MarketFeed.__init__(
-            self,
+        super().__init__(
             "BTCLBC",
             "lbry.io",
             "https://api.lbry.io/lbc/exchange_rate",
@@ -140,8 +138,7 @@ class LBRYioFeed(MarketFeed):
 
 class LBRYioBTCFeed(MarketFeed):
     def __init__(self):
-        MarketFeed.__init__(
-            self,
+        super().__init__(
             "USDBTC",
             "lbry.io",
             "https://api.lbry.io/lbc/exchange_rate",
@@ -161,8 +158,7 @@ class LBRYioBTCFeed(MarketFeed):
 
 class CryptonatorBTCFeed(MarketFeed):
     def __init__(self):
-        MarketFeed.__init__(
-            self,
+        super().__init__(
             "USDBTC",
             "cryptonator.com",
             "https://api.cryptonator.com/api/ticker/usd-btc",
@@ -183,8 +179,7 @@ class CryptonatorBTCFeed(MarketFeed):
 
 class CryptonatorFeed(MarketFeed):
     def __init__(self):
-        MarketFeed.__init__(
-            self,
+        super().__init__(
             "BTCLBC",
             "cryptonator.com",
             "https://api.cryptonator.com/api/ticker/btc-lbc",
@@ -203,7 +198,7 @@ class CryptonatorFeed(MarketFeed):
         return defer.succeed(float(json_response['ticker']['price']))
 
 
-class ExchangeRateManager(object):
+class ExchangeRateManager:
     def __init__(self):
         self.market_feeds = [
             LBRYioBTCFeed(),

lbrynet/daemon/Publisher.py

@@ -12,7 +12,7 @@ from lbrynet.wallet.account import get_certificate_lookup
 log = logging.getLogger(__name__)
 
 
-class Publisher(object):
+class Publisher:
     def __init__(self, blob_manager, payment_rate_manager, storage, lbry_file_manager, wallet, certificate):
         self.blob_manager = blob_manager
         self.payment_rate_manager = payment_rate_manager

lbrynet/daemon/auth/auth.py

@@ -9,7 +9,7 @@ log = logging.getLogger(__name__)
 
 
 @implementer(portal.IRealm)
-class HttpPasswordRealm(object):
+class HttpPasswordRealm:
     def __init__(self, resource):
         self.resource = resource
 
@@ -21,7 +21,7 @@ class HttpPasswordRealm(object):
 
 
 @implementer(checkers.ICredentialsChecker)
-class PasswordChecker(object):
+class PasswordChecker:
     credentialInterfaces = (credentials.IUsernamePassword,)
 
     def __init__(self, passwords):

lbrynet/daemon/auth/client.py

@@ -23,11 +23,11 @@ def copy_cookies(cookies):
 
 class JSONRPCException(Exception):
     def __init__(self, rpc_error):
-        Exception.__init__(self)
+        super().__init__()
         self.error = rpc_error
 
 
-class AuthAPIClient(object):
+class AuthAPIClient:
     def __init__(self, key, timeout, connection, count, cookies, url, login_url):
         self.__api_key = key
         self.__service_url = login_url
@@ -130,7 +130,7 @@ class AuthAPIClient(object):
         return cls(api_key, timeout, conn, id_count, cookies, url, service_url)
 
 
-class LBRYAPIClient(object):
+class LBRYAPIClient:
     @staticmethod
     def get_client():
         if not conf.settings:

lbrynet/daemon/auth/server.py

@@ -27,7 +27,7 @@ log = logging.getLogger(__name__)
 EMPTY_PARAMS = [{}]
 
 
-class JSONRPCError(object):
+class JSONRPCError:
     # http://www.jsonrpc.org/specification#error_object
     CODE_PARSE_ERROR = -32700  # Invalid JSON. Error while parsing the JSON text.
     CODE_INVALID_REQUEST = -32600  # The JSON sent is not a valid Request object.
@@ -129,7 +129,7 @@ class JSONRPCServerType(type):
         return klass
 
 
-class AuthorizedBase(object, metaclass=JSONRPCServerType):
+class AuthorizedBase(metaclass=JSONRPCServerType):
 
     @staticmethod
     def deprecated(new_command=None):

lbrynet/daemon/auth/util.py

@@ -24,7 +24,7 @@ def generate_key(x=None):
         return sha(x)
 
 
-class APIKey(object):
+class APIKey:
     def __init__(self, secret, name, expiration=None):
         self.secret = secret
         self.name = name

lbrynet/database/storage.py

@@ -85,11 +85,11 @@ def rerun_if_locked(f):
 
 class SqliteConnection(adbapi.ConnectionPool):
     def __init__(self, db_path):
-        adbapi.ConnectionPool.__init__(self, 'sqlite3', db_path, check_same_thread=False)
+        super().__init__('sqlite3', db_path, check_same_thread=False)
 
     @rerun_if_locked
     def runInteraction(self, interaction, *args, **kw):
-        return adbapi.ConnectionPool.runInteraction(self, interaction, *args, **kw)
+        return super().runInteraction(interaction, *args, **kw)
 
     @classmethod
     def set_reactor(cls, reactor):

lbrynet/dht/contact.py

@@ -13,7 +13,7 @@ def is_valid_ipv4(address):
         return False
 
 
-class _Contact(object):
+class _Contact:
     """ Encapsulation for remote contact
 
     This class contains information on a single remote contact, and also
@@ -167,7 +167,7 @@ class _Contact(object):
         return _sendRPC
 
 
-class ContactManager(object):
+class ContactManager:
     def __init__(self, get_time=None):
         if not get_time:
             from twisted.internet import reactor

lbrynet/dht/distance.py

@@ -6,7 +6,7 @@ if sys.version_info > (3,):
     long = int
 
 
-class Distance(object):
+class Distance:
     """Calculate the XOR result between two string variables.
 
     Frequently we re-use one of the points so as an optimization

lbrynet/dht/encoding.py

@@ -7,7 +7,7 @@ if sys.version_info > (3,):
 else:
     raw = lambda x: x
 
-class Encoding(object):
+class Encoding:
     """ Interface for RPC message encoders/decoders
 
     All encoding implementations used with this library should inherit and

lbrynet/dht/error.py

@@ -37,7 +37,7 @@ class TimeoutError(Exception):
             msg = 'Timeout connecting to {}'.format(binascii.hexlify(remote_contact_id))
         else:
             msg = 'Timeout connecting to uninitialized node'
-        Exception.__init__(self, msg)
+        super().__init__(msg)
         self.remote_contact_id = remote_contact_id
 
 

lbrynet/dht/hashannouncer.py

@@ -8,7 +8,7 @@ from lbrynet import conf
 log = logging.getLogger(__name__)
 
 
-class DHTHashAnnouncer(object):
+class DHTHashAnnouncer:
     def __init__(self, dht_node, storage, concurrent_announcers=None):
         self.dht_node = dht_node
         self.storage = storage

lbrynet/dht/iterativefind.py

@@ -22,7 +22,7 @@ def expand_peer(compact_peer_info):
     return (peer_node_id, host, port)
 
 
-class _IterativeFind(object):
+class _IterativeFind:
     # TODO: use polymorphism to search for a value or node
     #       instead of using a find_value flag
     def __init__(self, node, shortlist, key, rpc, exclude=None):

lbrynet/dht/kbucket.py

@@ -11,7 +11,7 @@ if sys.version_info > (3,):
 log = logging.getLogger(__name__)
 
 
-class KBucket(object):
+class KBucket:
     """ Description - later
     """
 

lbrynet/dht/msgformat.py

@@ -10,7 +10,7 @@
 from . import msgtypes
 
 
-class MessageTranslator(object):
+class MessageTranslator:
     """ Interface for RPC message translators/formatters
 
     Classes inheriting from this should provide a translation services between

lbrynet/dht/msgtypes.py

@@ -11,7 +11,7 @@ from lbrynet.core.utils import generate_id
 from . import constants
 
 
-class Message(object):
+class Message:
     """ Base class for messages - all "unknown" messages use this class """
 
     def __init__(self, rpcID, nodeID):
@@ -29,7 +29,7 @@ class RequestMessage(Message):
     def __init__(self, nodeID, method, methodArgs, rpcID=None):
         if rpcID is None:
             rpcID = generate_id()[:constants.rpc_id_length]
-        Message.__init__(self, rpcID, nodeID)
+        super().__init__(rpcID, nodeID)
         self.request = method
         self.args = methodArgs
 
@@ -38,7 +38,7 @@ class ResponseMessage(Message):
     """ Message containing the result from a successful RPC request """
 
     def __init__(self, rpcID, nodeID, response):
-        Message.__init__(self, rpcID, nodeID)
+        super().__init__(rpcID, nodeID)
         self.response = response
 
 
@@ -46,7 +46,7 @@ class ErrorMessage(ResponseMessage):
     """ Message containing the error from an unsuccessful RPC request """
 
     def __init__(self, rpcID, nodeID, exceptionType, errorMessage):
-        ResponseMessage.__init__(self, rpcID, nodeID, errorMessage)
+        super().__init__(rpcID, nodeID, errorMessage)
         if isinstance(exceptionType, type):
             exceptionType = ('%s.%s' % (exceptionType.__module__, exceptionType.__name__)).encode()
         self.exceptionType = exceptionType

lbrynet/dht/node.py

@@ -47,7 +47,7 @@ def rpcmethod(func):
     return func
 
 
-class MockKademliaHelper(object):
+class MockKademliaHelper:
     def __init__(self, clock=None, callLater=None, resolve=None, listenUDP=None):
         if not listenUDP or not resolve or not callLater or not clock:
             from twisted.internet import reactor
@@ -127,7 +127,7 @@ class Node(MockKademliaHelper):
         @param peerPort: the port at which this node announces it has a blob for
         """
 
-        MockKademliaHelper.__init__(self, clock, callLater, resolve, listenUDP)
+        super().__init__(clock, callLater, resolve, listenUDP)
         self.node_id = node_id or self._generateID()
         self.port = udpPort
         self._listen_interface = interface

lbrynet/dht/peerfinder.py

@@ -8,7 +8,7 @@ from lbrynet import conf
 log = logging.getLogger(__name__)
 
 
-class DummyPeerFinder(object):
+class DummyPeerFinder:
     """This class finds peers which have announced to the DHT that they have certain blobs"""
 
     def find_peers_for_blob(self, blob_hash, timeout=None, filter_self=True):

lbrynet/dht/protocol.py

@@ -15,7 +15,7 @@ from . import msgformat
 log = logging.getLogger(__name__)
 
 
-class PingQueue(object):
+class PingQueue:
     """
     Schedules a 15 minute delayed ping after a new node sends us a query. This is so the new node gets added to the
     routing table after having been given enough time for a pinhole to expire.

lbrynet/dht/routingtable.py

@@ -16,7 +16,7 @@ import logging
 log = logging.getLogger(__name__)
 
 
-class TreeRoutingTable(object):
+class TreeRoutingTable:
     """ This class implements a routing table used by a Node class.
 
     The Kademlia routing table is a binary tree whFose leaves are k-buckets,

lbrynet/file_manager/EncryptedFileCreator.py

@@ -24,7 +24,7 @@ class EncryptedFileStreamCreator(CryptStreamCreator):
 
     def __init__(self, blob_manager, lbry_file_manager, stream_name=None,
                  key=None, iv_generator=None):
-        CryptStreamCreator.__init__(self, blob_manager, stream_name, key, iv_generator)
+        super().__init__(blob_manager, stream_name, key, iv_generator)
         self.lbry_file_manager = lbry_file_manager
         self.stream_hash = None
         self.blob_infos = []

lbrynet/file_manager/EncryptedFileDownloader.py

@@ -37,8 +37,8 @@ class ManagedEncryptedFileDownloader(EncryptedFileSaver):
     def __init__(self, rowid, stream_hash, peer_finder, rate_limiter, blob_manager, storage, lbry_file_manager,
                  payment_rate_manager, wallet, download_directory, file_name, stream_name, sd_hash, key,
                  suggested_file_name, download_mirrors=None):
-        EncryptedFileSaver.__init__(
-            self, stream_hash, peer_finder, rate_limiter, blob_manager, storage, payment_rate_manager, wallet,
+        super().__init__(
+            stream_hash, peer_finder, rate_limiter, blob_manager, storage, payment_rate_manager, wallet,
             download_directory, key, stream_name, file_name
         )
         self.sd_hash = sd_hash
@@ -160,7 +160,7 @@ class ManagedEncryptedFileDownloader(EncryptedFileSaver):
                                          self.blob_manager, download_manager)
 
 
-class ManagedEncryptedFileDownloaderFactory(object):
+class ManagedEncryptedFileDownloaderFactory:
     #implements(IStreamDownloaderFactory)
 
     def __init__(self, lbry_file_manager, blob_manager):

lbrynet/file_manager/EncryptedFileManager.py

@@ -19,7 +19,7 @@ from lbrynet import conf
 log = logging.getLogger(__name__)
 
 
-class EncryptedFileManager(object):
+class EncryptedFileManager:
     """
     Keeps track of currently opened LBRY Files, their options, and
     their LBRY File specific metadata.

lbrynet/file_manager/EncryptedFileStatusReport.py

@@ -1,4 +1,4 @@
-class EncryptedFileStatusReport(object):
+class EncryptedFileStatusReport:
     def __init__(self, name, num_completed, num_known, running_status):
         self.name = name
         self.num_completed = num_completed

lbrynet/lbry_file/client/EncryptedFileDownloader.py

@@ -18,8 +18,8 @@ class EncryptedFileDownloader(CryptStreamDownloader):
 
     def __init__(self, stream_hash, peer_finder, rate_limiter, blob_manager,
                  storage, payment_rate_manager, wallet, key, stream_name, file_name):
-        CryptStreamDownloader.__init__(self, peer_finder, rate_limiter, blob_manager,
-                                       payment_rate_manager, wallet, key, stream_name)
+        super().__init__(peer_finder, rate_limiter, blob_manager,
+                         payment_rate_manager, wallet, key, stream_name)
         self.stream_hash = stream_hash
         self.storage = storage
         self.file_name = os.path.basename(binascii.unhexlify(file_name))
@@ -87,7 +87,7 @@ class EncryptedFileDownloader(CryptStreamDownloader):
                                             self.storage, download_manager)
 
 
-class EncryptedFileDownloaderFactory(object):
+class EncryptedFileDownloaderFactory:
     #implements(IStreamDownloaderFactory)
 
     def __init__(self, peer_finder, rate_limiter, blob_manager, storage, wallet):
@@ -125,9 +125,9 @@ class EncryptedFileDownloaderFactory(object):
 class EncryptedFileSaver(EncryptedFileDownloader):
     def __init__(self, stream_hash, peer_finder, rate_limiter, blob_manager, storage, payment_rate_manager, wallet,
                  download_directory, key, stream_name, file_name):
-        EncryptedFileDownloader.__init__(self, stream_hash, peer_finder, rate_limiter,
-                                         blob_manager, storage, payment_rate_manager,
-                                         wallet, key, stream_name, file_name)
+        super().__init__(stream_hash, peer_finder, rate_limiter,
+                         blob_manager, storage, payment_rate_manager,
+                         wallet, key, stream_name, file_name)
         self.download_directory = binascii.unhexlify(download_directory)
         self.file_written_to = os.path.join(self.download_directory, binascii.unhexlify(file_name))
         self.file_handle = None
@@ -180,7 +180,7 @@ class EncryptedFileSaver(EncryptedFileDownloader):
 
 class EncryptedFileSaverFactory(EncryptedFileDownloaderFactory):
     def __init__(self, peer_finder, rate_limiter, blob_manager, storage, wallet, download_directory):
-        EncryptedFileDownloaderFactory.__init__(self, peer_finder, rate_limiter, blob_manager, storage, wallet)
+        super().__init__(peer_finder, rate_limiter, blob_manager, storage, wallet)
         self.download_directory = binascii.hexlify(download_directory.encode())
 
     def _make_downloader(self, stream_hash, payment_rate_manager, stream_info):

lbrynet/lbry_file/client/EncryptedFileMetadataHandler.py

@@ -5,7 +5,7 @@ from twisted.internet import defer
 log = logging.getLogger(__name__)
 
 
-class EncryptedFileMetadataHandler(object):
+class EncryptedFileMetadataHandler:
 
     def __init__(self, stream_hash, storage, download_manager):
         self.stream_hash = stream_hash

lbrynet/lbry_file/client/EncryptedFileOptions.py

@@ -8,7 +8,7 @@ def add_lbry_file_to_sd_identifier(sd_identifier):
                                   EncryptedFileOptions())
 
 
-class EncryptedFileOptions(object):
+class EncryptedFileOptions:
     def __init__(self):
         pass
 

lbrynet/wallet/account.py

@@ -28,7 +28,7 @@ def get_certificate_lookup(tx_or_hash, nout):
 class Account(BaseAccount):
 
     def __init__(self, *args, **kwargs):
-        super(Account, self).__init__(*args, **kwargs)
+        super().__init__(*args, **kwargs)
         self.certificates = {}
 
     def add_certificate_private_key(self, tx_or_hash, nout, private_key):
@@ -73,20 +73,20 @@ class Account(BaseAccount):
     def get_balance(self, confirmations=6, include_claims=False, **constraints):
         if not include_claims:
             constraints.update({'is_claim': 0, 'is_update': 0, 'is_support': 0})
-        return super(Account, self).get_balance(confirmations, **constraints)
+        return super().get_balance(confirmations, **constraints)
 
     def get_unspent_outputs(self, include_claims=False, **constraints):
         if not include_claims:
             constraints.update({'is_claim': 0, 'is_update': 0, 'is_support': 0})
-        return super(Account, self).get_unspent_outputs(**constraints)
+        return super().get_unspent_outputs(**constraints)
 
     @classmethod
     def from_dict(cls, ledger, d):  # type: (torba.baseledger.BaseLedger, Dict) -> BaseAccount
-        account = super(Account, cls).from_dict(ledger, d)
+        account = super().from_dict(ledger, d)
         account.certificates = d['certificates']
         return account
 
     def to_dict(self):
-        d = super(Account, self).to_dict()
+        d = super().to_dict()
         d['certificates'] = self.certificates
         return d

lbrynet/wallet/database.py

@@ -32,7 +32,7 @@ class WalletDatabase(BaseDatabase):
     )
 
     def txo_to_row(self, tx, address, txo):
-        row = super(WalletDatabase, self).txo_to_row(tx, address, txo)
+        row = super().txo_to_row(tx, address, txo)
         row.update({
             'is_claim': txo.script.is_claim_name,
             'is_update': txo.script.is_update_claim,

lbrynet/wallet/ledger.py

@@ -125,13 +125,13 @@ class MainNetLedger(BaseLedger):
     default_fee_per_name_char = 200000
 
     def __init__(self, *args, **kwargs):
-        super(MainNetLedger, self).__init__(*args, **kwargs)
+        super().__init__(*args, **kwargs)
         self.fee_per_name_char = self.config.get('fee_per_name_char', self.default_fee_per_name_char)
 
     def get_transaction_base_fee(self, tx):
         """ Fee for the transaction header and all outputs; without inputs. """
         return max(
-            super(MainNetLedger, self).get_transaction_base_fee(tx),
+            super().get_transaction_base_fee(tx),
             self.get_transaction_claim_name_fee(tx)
         )
 
@@ -156,7 +156,7 @@ class MainNetLedger(BaseLedger):
 
     @defer.inlineCallbacks
     def start(self):
-        yield super(MainNetLedger, self).start()
+        yield super().start()
         yield defer.DeferredList([
             a.maybe_migrate_certificates() for a in self.accounts
         ])

lbrynet/wallet/manager.py

@@ -20,7 +20,7 @@ if six.PY3:
     buffer = memoryview
 
 
-class BackwardsCompatibleNetwork(object):
+class BackwardsCompatibleNetwork:
     def __init__(self, manager):
         self.manager = manager
 
@@ -232,19 +232,19 @@ class LbryWalletManager(BaseWalletManager):
             wallet.save()
 
 
-class ReservedPoints(object):
+class ReservedPoints:
     def __init__(self, identifier, amount):
         self.identifier = identifier
         self.amount = amount
 
 
-class ClientRequest(object):
+class ClientRequest:
     def __init__(self, request_dict, response_identifier=None):
         self.request_dict = request_dict
         self.response_identifier = response_identifier
 
 
-class LBRYcrdAddressRequester(object):
+class LBRYcrdAddressRequester:
 
     def __init__(self, wallet):
         self.wallet = wallet
@@ -277,7 +277,7 @@ class LBRYcrdAddressRequester(object):
         )
 
 
-class LBRYcrdAddressQueryHandlerFactory(object):
+class LBRYcrdAddressQueryHandlerFactory:
 
     def __init__(self, wallet):
         self.wallet = wallet
@@ -293,7 +293,7 @@ class LBRYcrdAddressQueryHandlerFactory(object):
         return "LBRYcrd Address - an address for receiving payments via LBRYcrd"
 
 
-class LBRYcrdAddressQueryHandler(object):
+class LBRYcrdAddressQueryHandler:
 
     def __init__(self, wallet):
         self.wallet = wallet

lbrynet/wallet/resolve.py

@@ -16,7 +16,7 @@ from .claim_proofs import verify_proof, InvalidProofError
 log = logging.getLogger(__name__)
 
 
-class Resolver(object):
+class Resolver:
 
     def __init__(self, claim_trie_root, height, transaction_class, hash160_to_address, network):
         self.claim_trie_root = claim_trie_root

lbrynet/winhelpers/knownpaths.py

@@ -14,14 +14,14 @@ class GUID(ctypes.Structure):
     ]
 
     def __init__(self, uuid_):
-        ctypes.Structure.__init__(self)
+        super().__init__()
         self.Data1, self.Data2, self.Data3, self.Data4[0], self.Data4[1], rest = uuid_.fields
         for i in range(2, 8):
             self.Data4[i] = rest>>(8 - i - 1)*8 & 0xff
 
 
 # http://msdn.microsoft.com/en-us/library/windows/desktop/dd378457.aspx
-class FOLDERID(object):
+class FOLDERID:
     # pylint: disable=bad-whitespace
     AccountPictures         = UUID('{008ca0b1-55b4-4c56-b8a8-4de4b299d3be}')
     AdminTools              = UUID('{724EF170-A42D-4FEF-9F26-B60E846FBA4F}')
@@ -120,7 +120,7 @@ class FOLDERID(object):
 
 
 # http://msdn.microsoft.com/en-us/library/windows/desktop/bb762188.aspx
-class UserHandle(object):
+class UserHandle:
     current = wintypes.HANDLE(0)
     common = wintypes.HANDLE(-1)