Update hacking for Python3

The repo is Python 3 now, so update hacking to version 2.0 which
supports Python 3.

fix issues found by flake8.

Change-Id: I2f14cb6f67a0c9b4c0dcbf8d93c26eb99b9b9d33

coverage2sql/migrations/cli.py

@@ -164,6 +164,7 @@ def add_command_parsers(subparsers):
                              "expiration point")
     parser.set_defaults(func=expire_old)
 
+
 command_opt = cfg.SubCommandOpt('command',
                                 title='Command',
                                 help='Available commands',
@@ -183,5 +184,6 @@ def main():
     db_api.get_session()
     CONF.command.func(config, CONF.command.name)
 
+
 if __name__ == "__main__":
     sys.exit(main())

coverage2sql/migrations/env.py

@@ -85,6 +85,7 @@ def run_migrations_online():
         with context.begin_transaction():
             context.run_migrations()
 
+
 if context.is_offline_mode():
     run_migrations_offline()
 else:

coverage2sql/migrations/versions/52dfb338f74e_add_coverages_table.py

@@ -27,9 +27,9 @@ down_revision = None
 branch_labels = None
 depends_on = None
 
-from alembic import context
-from alembic import op
-import sqlalchemy as sa
+from alembic import context  # noqa: E402
+from alembic import op  # noqa: E402
+import sqlalchemy as sa  # noqa: E402
 
 
 def upgrade():

coverage2sql/migrations/versions/79dead6f7c26_add_files_table.py

@@ -27,9 +27,9 @@ down_revision = 'cb0e61ce633e'
 branch_labels = None
 depends_on = None
 
-from alembic import context
-from alembic import op
-import sqlalchemy as sa
+from alembic import context  # noqa: E402
+from alembic import op  # noqa: E402
+import sqlalchemy as sa  # noqa: E402
 
 
 def upgrade():

coverage2sql/migrations/versions/8857b04071a2_add_metadata_column.py

@@ -25,8 +25,8 @@ down_revision = '79dead6f7c26'
 branch_labels = None
 depends_on = None
 
-from alembic import op
-import sqlalchemy as sa
+from alembic import op  # noqa: E402
+import sqlalchemy as sa  # noqa: E402
 
 
 def upgrade():

coverage2sql/migrations/versions/cb0e61ce633e_add_test_type_column.py

@@ -27,8 +27,8 @@ down_revision = '52dfb338f74e'
 branch_labels = None
 depends_on = None
 
-from alembic import op
-import sqlalchemy as sa
+from alembic import op  # noqa: E402
+import sqlalchemy as sa  # noqa: E402
 
 
 def upgrade():

test-requirements.txt

@@ -2,7 +2,7 @@
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
 
-hacking<0.11,>=0.10.0
+hacking>=2.0,<2.1 # Apache-2.0
 
 fixtures>=3.0.0 # Apache-2.0/BSD
 python-subunit>=0.0.18 # Apache-2.0/BSD

tox.ini

@@ -68,9 +68,10 @@ commands = sphinx-build -a -E -d releasenotes/build/doctrees -b html releasenote
 # E125 is deliberately excluded. See https://github.com/jcrocholl/pep8/issues/126
 # E129 skipped because it is too limiting when combined with other rules
 # E711 skipped because sqlalchemy filter() requires using == instead of is
-
+# W503 line break before binary operator
+# W504 line break after binary operator
 show-source = True
-ignore = E123,E125,E129,E711
+ignore = E123,E125,E129,E711,W503,W504
 builtins = _
 exclude=.venv,.git,.tox,dist,doc,*lib/python*,*egg,build,releasenotes