Fixed pep8 violations in bigchaindb source code

.travis.yml

@@ -19,7 +19,7 @@ install:
 
 before_script:
   - rethinkdb --daemon
-  - flake8 .
+  - flake8 --max-line-length 119 bigchaindb/
 
 script: py.test -n auto -s -v --cov=bigchaindb
 

bigchaindb/commands/bigchain.py

@@ -82,7 +82,6 @@ def run_configure(args, skip_if_exists=False):
             conf,
             bigchaindb.config_utils.env_config(bigchaindb.config))
 
-
     print('Generating keypair', file=sys.stderr)
     conf['keypair']['private'], conf['keypair']['public'] = \
         crypto.generate_key_pair()
@@ -170,7 +169,6 @@ def run_start(args):
         else:
             logger.warning('Keypair found, no need to create one on the fly.')
 
-
     if args.start_rethinkdb:
         try:
             proc = utils.start_rethinkdb()

bigchaindb/commands/utils.py

@@ -14,7 +14,6 @@ from bigchaindb import db
 from bigchaindb.version import __version__
 
 
-
 def start_rethinkdb():
     """Start RethinkDB as a child process and wait for it to be
     available.

bigchaindb/core.py

@@ -6,7 +6,7 @@ from time import time
 from itertools import compress
 from bigchaindb.common import crypto, exceptions
 from bigchaindb.common.util import gen_timestamp, serialize
-from bigchaindb.common.transaction import TransactionLink, Metadata
+from bigchaindb.common.transaction import TransactionLink
 
 import rethinkdb as r
 
@@ -366,7 +366,8 @@ class Bigchain(object):
                 if self.get_transaction(transaction['id']):
                     num_valid_transactions += 1
                 if num_valid_transactions > 1:
-                    raise exceptions.DoubleSpend('`{}` was spent more then once. There is a problem with the chain'.format(
+                    raise exceptions.DoubleSpend(
+                        '`{}` was spent more then once. There is a problem with the chain'.format(
                             txid))
 
             if num_valid_transactions:
@@ -599,12 +600,14 @@ class Bigchain(object):
         voter_counts = collections.Counter([vote['node_pubkey'] for vote in votes])
         for node in voter_counts:
             if voter_counts[node] > 1:
-                raise exceptions.MultipleVotesError('Block {block_id} has multiple votes ({n_votes}) from voting node {node_id}'
+                raise exceptions.MultipleVotesError(
+                    'Block {block_id} has multiple votes ({n_votes}) from voting node {node_id}'
                     .format(block_id=block_id, n_votes=str(voter_counts[node]), node_id=node))
 
         if len(votes) > n_voters:
             raise exceptions.MultipleVotesError('Block {block_id} has {n_votes} votes cast, but only {n_voters} voters'
-                                                .format(block_id=block_id, n_votes=str(len(votes)), n_voters=str(n_voters)))
+                                                .format(block_id=block_id, n_votes=str(len(votes)),
+                                                        n_voters=str(n_voters)))
 
         # vote_cast is the list of votes e.g. [True, True, False]
         vote_cast = [vote['vote']['is_block_valid'] for vote in votes]

bigchaindb/db/__init__.py

@@ -1,2 +1,2 @@
 # TODO can we use explicit imports?
-from bigchaindb.db.utils import *
+from bigchaindb.db.utils import *  # noqa: F401,F403

bigchaindb/pipelines/utils.py

@@ -73,4 +73,3 @@ class ChangeFeed(Node):
                 self.outqueue.put(change['old_val'])
             elif is_update and (self.operation & ChangeFeed.UPDATE):
                 self.outqueue.put(change['new_val'])
-

bigchaindb/web/views/base.py

@@ -12,4 +12,3 @@ def make_error(status_code, message=None):
     })
     response.status_code = status_code
     return response
-