From 6f2e2e727e9420d2fae759b4c27981e7a87aeb7f Mon Sep 17 00:00:00 2001
From: Job Evers-Meltzer <jobevers@users.noreply.github.com>
Date: Mon, 28 Nov 2016 13:23:10 -0600
Subject: [PATCH] fix pylint errors

---
 lbrynet/core/Wallet.py             | 68 ++++++++++++++++--------------
 lbrynet/db_migrator/dbmigrator.py  |  8 ++--
 lbrynet/db_migrator/migrate1to2.py | 18 +++++---
 lbrynet/lbrynet_daemon/Daemon.py   | 18 ++++----
 4 files changed, 61 insertions(+), 51 deletions(-)

diff --git a/lbrynet/core/Wallet.py b/lbrynet/core/Wallet.py
index 2db3b6ab2..ad7ee6a81 100644
--- a/lbrynet/core/Wallet.py
+++ b/lbrynet/core/Wallet.py
@@ -26,7 +26,7 @@ from lbrynet.interfaces import IRequestCreator, IQueryHandlerFactory, IQueryHand
 from lbrynet.core.client.ClientRequest import ClientRequest
 from lbrynet.core.Error import UnknownNameError, InvalidStreamInfoError, RequestCanceledError
 from lbrynet.core.Error import InsufficientFundsError
-from lbrynet.db_migrator.migrate1to2 import UNSET_NOUT 
+from lbrynet.db_migrator.migrate1to2 import UNSET_NOUT
 from lbrynet.metadata.Metadata import Metadata
 
 log = logging.getLogger(__name__)
@@ -44,22 +44,22 @@ class ClaimOutpoint(dict):
         if len(txid) != 64:
             raise TypeError('{} is not a txid'.format(txid))
         self['txid'] = txid
-        self['nout'] = nout 
+        self['nout'] = nout
 
     def __repr__(self):
-        return "{}:{}".format(txid,nout)
+        return "{}:{}".format(self['txid'], self['nout'])
 
     def __eq__(self, compare):
-        if isinstance(compare,dict):
+        if isinstance(compare, dict):
             # TODO: lbryum returns nout's in dicts as "nOut" , need to fix this
-            if 'nOut' in compare: 
-                return (self['txid'],self['nout']) == (compare['txid'],compare['nOut'])
-            elif 'nout' in compare:                 
-                return (self['txid'],self['nout']) == (compare['txid'],compare['nout'])
+            if 'nOut' in compare:
+                return (self['txid'], self['nout']) == (compare['txid'], compare['nOut'])
+            elif 'nout' in compare:
+                return (self['txid'], self['nout']) == (compare['txid'], compare['nout'])
         else:
             raise TypeError('cannot compare {}'.format(type(compare)))
     def __ne__(self, compare):
-        return not self.__eq__(compare) 
+        return not self.__eq__(compare)
 
 
 def _catch_connection_error(f):
@@ -67,8 +67,9 @@ def _catch_connection_error(f):
         try:
             return f(*args)
         except socket.error:
-            raise ValueError("Unable to connect to an lbrycrd server. Make sure an lbrycrd server " +
-                             "is running and that this application can connect to it.")
+            raise ValueError(
+                "Unable to connect to an lbrycrd server. Make sure an lbrycrd server " +
+                "is running and that this application can connect to it.")
     return w
 
 
@@ -90,8 +91,9 @@ class Wallet(object):
         self.queued_payments = defaultdict(Decimal)  # {address(string): amount(Decimal)}
         self.expected_balances = defaultdict(Decimal)  # {address(string): amount(Decimal)}
         self.current_address_given_to_peer = {}  # {Peer: address(string)}
-        self.expected_balance_at_time = deque()  # (Peer, address(string), amount(Decimal), time(datetime), count(int),
-                                                 # incremental_amount(float))
+        # (Peer, address(string), amount(Decimal), time(datetime), count(int),
+        # incremental_amount(float))
+        self.expected_balance_at_time = deque()
         self.max_expected_payment_time = datetime.timedelta(minutes=3)
         self.stopped = True
 
@@ -193,7 +195,8 @@ class Wallet(object):
         d.addCallback(lambda _: set_next_manage_call())
 
         def log_error(err):
-            log.error("Something went wrong during manage. Error message: %s", err.getErrorMessage())
+            log.error("Something went wrong during manage. Error message: %s",
+                      err.getErrorMessage())
             return err
 
         d.addErrback(log_error)
@@ -213,14 +216,15 @@ class Wallet(object):
         return LBRYcrdAddressQueryHandlerFactory(self)
 
     def reserve_points(self, identifier, amount):
-        """
-        Ensure a certain amount of points are available to be sent as payment, before the service is rendered
+        """Ensure a certain amount of points are available to be sent as
+        payment, before the service is rendered
 
         @param identifier: The peer to which the payment will ultimately be sent
 
         @param amount: The amount of points to reserve
 
-        @return: A ReservedPoints object which is given to send_points once the service has been rendered
+        @return: A ReservedPoints object which is given to send_points
+            once the service has been rendered
         """
         rounded_amount = Decimal(str(round(amount, 8)))
         #if peer in self.peer_addresses:
@@ -287,11 +291,13 @@ class Wallet(object):
         rounded_amount = Decimal(str(round(amount, 8)))
         assert(peer in self.current_address_given_to_peer)
         address = self.current_address_given_to_peer[peer]
-        log.info("expecting a payment at address %s in the amount of %s", str(address), str(rounded_amount))
+        log.info("expecting a payment at address %s in the amount of %s",
+                 str(address), str(rounded_amount))
         self.expected_balances[address] += rounded_amount
         expected_balance = self.expected_balances[address]
         expected_time = datetime.datetime.now() + self.max_expected_payment_time
-        self.expected_balance_at_time.append((peer, address, expected_balance, expected_time, 0, amount))
+        self.expected_balance_at_time.append(
+            (peer, address, expected_balance, expected_time, 0, amount))
         peer.update_stats('expected_points', amount)
 
     def update_peer_address(self, peer, address):
@@ -337,12 +343,12 @@ class Wallet(object):
         return d
 
     def get_stream_info_from_claim_outpoint(self, name, txid, nout):
-        claim_outpoint = ClaimOutpoint(txid, nout) 
+        claim_outpoint = ClaimOutpoint(txid, nout)
         d = self.get_claims_from_tx(claim_outpoint['txid'])
 
         def get_claim_for_name(claims):
             for claim in claims:
-                if claim_outpoint == claim: 
+                if claim_outpoint == claim:
                     claim['txid'] = txid
                     return claim
             return Failure(UnknownNameError(name))
@@ -370,7 +376,7 @@ class Wallet(object):
         sd_hash = metadata['sources']['lbry_sd_hash']
         claim_outpoint = ClaimOutpoint(result['txid'], result['n']) 
         d = self._save_name_metadata(name, claim_outpoint, sd_hash)
-        d.addCallback(lambda _: self.get_claimid(name, result['txid'],result['n']))
+        d.addCallback(lambda _: self.get_claimid(name, result['txid'], result['n']))
         d.addCallback(lambda cid: _log_success(cid))
         d.addCallback(lambda _: metadata)
         return d
@@ -416,9 +422,9 @@ class Wallet(object):
     def get_claim_info(self, name, txid=None, nout=None):
         if txid is None or nout is None:
             d = self._get_value_for_name(name)
-            d.addCallback(lambda r: self._get_claim_info(name, ClaimOutpoint(r['txid'],r['n'])))
-        else:            
-            d = self._get_claim_info(name, ClaimOutpoint(txid,nout))
+            d.addCallback(lambda r: self._get_claim_info(name, ClaimOutpoint(r['txid'], r['n'])))
+        else:
+            d = self._get_claim_info(name, ClaimOutpoint(txid, nout))
         d.addErrback(lambda _: False)
         return d
 
@@ -473,9 +479,9 @@ class Wallet(object):
     def claim_name(self, name, bid, m):
         def _save_metadata(claim_out, metadata):
             if not claim_out['success']:
-                msg = 'Claim to name {} failed: {}'.format(name,claim_out['reason'])
+                msg = 'Claim to name {} failed: {}'.format(name, claim_out['reason'])
                 defer.fail(Exception(msg))
-            claim_outpoint = ClaimOutpoint(claim_out['txid'],claim_out['nout'])
+            claim_outpoint = ClaimOutpoint(claim_out['txid'], claim_out['nout'])
             log.info("Saving metadata for claim %s %d" % (claim_outpoint['txid'], claim_outpoint['nout']))
             d = self._save_name_metadata(name, claim_outpoint, metadata['sources']['lbry_sd_hash'])
             d.addCallback(lambda _: claim_out)
@@ -488,7 +494,7 @@ class Wallet(object):
             else:
                 log.info("Updating over own claim")
                 d = self.update_metadata(metadata, claim['value'])
-                claim_outpoint = ClaimOutpoint(claim['txid'],claim['nOut'])
+                claim_outpoint = ClaimOutpoint(claim['txid'], claim['nOut'])
                 d.addCallback(lambda new_metadata: self._send_name_claim_update(name, claim['claim_id'],
                                                                                 claim_outpoint,
                                                                                 new_metadata, _bid))
@@ -534,11 +540,11 @@ class Wallet(object):
     def get_name_and_validity_for_sd_hash(self, sd_hash):
         def _get_status_of_claim(name_txid, sd_hash):
             if name_txid:
-                claim_outpoint = ClaimOutpoint(name_txid[1],name_txid[2])
+                claim_outpoint = ClaimOutpoint(name_txid[1], name_txid[2])
                 name = name_txid[0]
                 return self._get_status_of_claim(claim_outpoint, name, sd_hash)
             else:
-        		return None
+                return None
 
         d = self._get_claim_metadata_for_sd_hash(sd_hash)
         d.addCallback(lambda name_txid: _get_status_of_claim(name_txid, sd_hash))
@@ -1352,7 +1358,7 @@ class LBRYumWallet(Wallet):
         return decoded_tx
 
     def _abandon_claim(self, claim_outpoint):
-        log.info("Abandon %s %s" % (claim_outpoint['txid'],claim_outpoint['nout']))
+        log.info("Abandon %s %s" % (claim_outpoint['txid'], claim_outpoint['nout']))
         cmd = known_commands['abandon']
         func = getattr(self.cmd_runner, cmd.name)
         d = threads.deferToThread(func, claim_outpoint['txid'], claim_outpoint['nout'])
diff --git a/lbrynet/db_migrator/dbmigrator.py b/lbrynet/db_migrator/dbmigrator.py
index 152f24476..29603f821 100644
--- a/lbrynet/db_migrator/dbmigrator.py
+++ b/lbrynet/db_migrator/dbmigrator.py
@@ -8,9 +8,9 @@ def migrate_db(db_dir, start, end):
             from lbrynet.db_migrator.migrate1to2 import do_migration
             do_migration(db_dir)
         else:
-            raise Exception("DB migration of version {} to {} is not available".format(current,current+1))
+            raise Exception(
+                "DB migration of version {} to {} is not available".format(current, current+1))
         current += 1
-
     return None
 
 
@@ -21,7 +21,7 @@ def run_migration_script():
     sys.stdout = open("migrator.out.log", 'w')
     sys.stderr = open("migrator.err.log", 'w')
     migrate_db(sys.argv[1], int(sys.argv[2]), int(sys.argv[3]))
-    
-    
+
+
 if __name__ == "__main__":
     run_migration_script()
diff --git a/lbrynet/db_migrator/migrate1to2.py b/lbrynet/db_migrator/migrate1to2.py
index 7ec6b5d79..23480d5ab 100644
--- a/lbrynet/db_migrator/migrate1to2.py
+++ b/lbrynet/db_migrator/migrate1to2.py
@@ -3,7 +3,7 @@ import os
 import logging
 
 log = logging.getLogger(__name__)
-UNSET_NOUT = -1 
+UNSET_NOUT = -1
 
 def do_migration(db_dir):
     log.info("Doing the migration")
@@ -12,10 +12,10 @@ def do_migration(db_dir):
 
 
 def migrate_blockchainname_db(db_dir):
-    blockchainname_db = os.path.join(db_dir,"blockchainname.db")
-    # skip migration on fresh installs 
+    blockchainname_db = os.path.join(db_dir, "blockchainname.db")
+    # skip migration on fresh installs
     if not os.path.isfile(blockchainname_db):
-        return 
+        return
     temp_db = sqlite3.connect(":memory:")
     db_file = sqlite3.connect(blockchainname_db)
     file_cursor = db_file.cursor()
@@ -36,12 +36,16 @@ def migrate_blockchainname_db(db_dir):
     name_metadata = file_cursor.execute("select * from name_metadata").fetchall()
     claim_metadata = file_cursor.execute("select * from claim_ids").fetchall()
 
-    # fill n as V1_UNSET_NOUT, Wallet.py will be responsible for filling in correct n 
+    # fill n as V1_UNSET_NOUT, Wallet.py will be responsible for filling in correct n
     for name, txid, sd_hash in name_metadata:
-        mem_cursor.execute("insert into name_metadata values (?, ?, ?, ?) ", (name, txid, UNSET_NOUT, sd_hash))
+        mem_cursor.execute(
+            "insert into name_metadata values (?, ?, ?, ?) ",
+            (name, txid, UNSET_NOUT, sd_hash))
 
     for claim_id, name, txid in claim_metadata:
-        mem_cursor.execute("insert into claim_ids values (?, ?, ?, ?)", (claim_id, name, txid, UNSET_NOUT))
+        mem_cursor.execute(
+            "insert into claim_ids values (?, ?, ?, ?)",
+            (claim_id, name, txid, UNSET_NOUT))
     temp_db.commit()
 
     new_name_metadata = mem_cursor.execute("select * from name_metadata").fetchall()
diff --git a/lbrynet/lbrynet_daemon/Daemon.py b/lbrynet/lbrynet_daemon/Daemon.py
index 8b2d0eaf0..8c7114381 100644
--- a/lbrynet/lbrynet_daemon/Daemon.py
+++ b/lbrynet/lbrynet_daemon/Daemon.py
@@ -47,7 +47,7 @@ from lbrynet.core.Wallet import LBRYcrdWallet, LBRYumWallet
 from lbrynet.core.looping_call_manager import LoopingCallManager
 from lbrynet.core.server.BlobRequestHandler import BlobRequestHandlerFactory
 from lbrynet.core.server.ServerProtocol import ServerProtocolFactory
-from lbrynet.core.Error import InsufficientFundsError, InvalidNameError, UnknownNameError
+from lbrynet.core.Error import InsufficientFundsError, InvalidNameError
 
 
 log = logging.getLogger(__name__)
@@ -437,12 +437,12 @@ class Daemon(AuthJSONRPCServer):
         if not self.connected_to_internet:
             self.connection_problem = CONNECTION_PROBLEM_CODES[1]
 
-    # claim_out is dictionary containing 'txid' and 'nout' 
+    # claim_out is dictionary containing 'txid' and 'nout'
     def _add_to_pending_claims(self, name, claim_out):
         txid = claim_out['txid']
         nout = claim_out['nout'] 
         log.info("Adding lbry://%s to pending claims, txid %s nout %d" % (name, txid, nout))
-        self.pending_claims[name] = (txid,nout)
+        self.pending_claims[name] = (txid, nout)
         return claim_out
 
     def _check_pending_claims(self):
@@ -459,7 +459,7 @@ class Daemon(AuthJSONRPCServer):
         def re_add_to_pending_claims(name):
             log.warning("Re-add %s to pending claims", name)
             txid, nout = self.pending_claims.pop(name)
-            claim_out = {'txid':txid,'nout':nout} 
+            claim_out = {'txid':txid, 'nout':nout}
             self._add_to_pending_claims(name, claim_out)
 
         def _process_lbry_file(name, lbry_file):
@@ -467,7 +467,7 @@ class Daemon(AuthJSONRPCServer):
             # TODO: check for sd_hash in addition to txid
             ready_to_start = (
                 lbry_file and
-                self.pending_claims[name] == (lbry_file.txid,lbry_file.nout)
+                self.pending_claims[name] == (lbry_file.txid, lbry_file.nout)
             )
             if ready_to_start:
                 _get_and_start_file(name)
@@ -679,7 +679,7 @@ class Daemon(AuthJSONRPCServer):
 
         return defer.succeed(True)
 
-    def _write_db_revision_file(self,version_num): 
+    def _write_db_revision_file(self, version_num):
         with open(self.db_revision_file, mode='w') as db_revision:
             db_revision.write(str(version_num))
 
@@ -693,7 +693,7 @@ class Daemon(AuthJSONRPCServer):
         if not os.path.exists(self.blobfile_dir):
             os.mkdir(self.blobfile_dir)
             log.debug("Created the blobfile directory: %s", str(self.blobfile_dir))
-        if not os.path.exists(self.db_revision_file):             
+        if not os.path.exists(self.db_revision_file):
             log.warning("db_revision file not found. Creating it")
             self._write_db_revision_file(old_revision)
 
@@ -1679,7 +1679,7 @@ class Daemon(AuthJSONRPCServer):
             success : True if succesful , False otherwise
             reason : if not succesful, give reason
             txid : txid of resulting transaction if succesful
-            fee : fee paid for the transaction if succesful 
+            fee : fee paid for the transaction if succesful
         """
         if 'txid' in p.keys() and 'nout' in p.keys():
             txid = p['txid']
@@ -1692,7 +1692,7 @@ class Daemon(AuthJSONRPCServer):
             return self._render_response(x, OK_CODE)
 
         d = defer.Deferred()
-        d.addCallback(lambda _: self.session.wallet.abandon_claim(txid,nout))
+        d.addCallback(lambda _: self.session.wallet.abandon_claim(txid, nout))
         d.addCallback(_disp)
         d.callback(None)