Update hacking for Python3

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

Fix problems found.

Change-Id: I6c5fed0686154954d575507dd32fdd65c0b44437

molteniron/molteniron.py

@@ -47,6 +47,7 @@ def makeRegistrar():
     registrar.all = registry
     return registrar
 
+
 # Create the decorator
 command = makeRegistrar()
 

molteniron/moltenirond.py

@@ -293,6 +293,7 @@ ip='%s' />"""
                       self.node_id,
                       self.ip)
 
+
 TYPE_MYSQL = 1
 # Is there a mysql memory path?
 TYPE_SQLITE = 3

molteniron/tests/testCull.py

@@ -70,6 +70,7 @@ def compare_culled_nodes(lhs, rhs_r, rhs_n):
     assert lhs_r == rhs_r
     assert lhs_n == rhs_n
 
+
 if __name__ == "__main__":
     parser = argparse.ArgumentParser(description="Molteniron CLI tool")
     parser.add_argument("-c",

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,<0.12 # Apache-2.0
+hacking>=2.0,<2.1 # Apache-2.0
 
 coverage>=4.0 # Apache-2.0
 python-subunit>=0.0.18 # Apache-2.0/BSD

tox.ini

@@ -110,6 +110,6 @@ commands = oslo_debug_helper {posargs}
 # E123, E125 skipped as they are invalid PEP-8.
 
 show-source = True
-ignore = E123,E125
+ignore = E123,E125,W504
 builtins = _
 exclude=.venv,.git,.tox,dist,doc,*lib/python*,*egg,build

utils/createDB.py

@@ -57,6 +57,7 @@ def main():
 
     return 0
 
+
 if __name__ == "__main__":
     rc = main()