Add flake8 and fix errors.

Signed-off-by: Daniel Nephin <dnephin@gmail.com>

fig/__init__.py

@@ -1,4 +1,4 @@
 from __future__ import unicode_literals
-from .service import Service
+from .service import Service  # noqa:flake8
 
 __version__ = '0.5.1'

fig/cli/command.py

@@ -8,7 +8,6 @@ import os
 import re
 import yaml
 from ..packages import six
-import sys
 
 from ..project import Project
 from ..service import ConfigError
@@ -19,6 +18,7 @@ from . import errors
 
 log = logging.getLogger(__name__)
 
+
 class Command(DocoptCommand):
     base_dir = '.'
 

fig/cli/main.py

@@ -281,13 +281,13 @@ class TopLevelCommand(Command):
             try:
                 num = int(num)
             except ValueError:
-                raise UserError('Number of containers for service "%s" is not a number' % service)
+                raise UserError('Number of containers for service "%s" is not a '
+                                'number' % service_name)
             try:
                 self.project.get_service(service_name).scale(num)
             except CannotBeScaledError:
                 raise UserError('Service "%s" cannot be scaled because it specifies a port on the host. If multiple containers for this service were created, the port would clash.\n\nRemove the ":" from the port definition in fig.yml so Docker can choose a random port for each container.' % service_name)
 
-
     def start(self, options):
         """
         Start existing containers.
@@ -357,5 +357,6 @@ class TopLevelCommand(Command):
                 print("Gracefully stopping... (press Ctrl+C again to force)")
                 self.project.stop(service_names=service_names)
 
+
 def list_containers(containers):
     return ", ".join(c.name for c in containers)

fig/container.py

@@ -1,6 +1,7 @@
 from __future__ import unicode_literals
 from __future__ import absolute_import
 
+
 class Container(object):
     """
     Represents a Docker container, constructed from the output of

fig/project.py

@@ -38,6 +38,7 @@ def sort_service_dicts(services):
 
     return sorted_services
 
+
 class Project(object):
     """
     A collection of services.
@@ -216,6 +217,6 @@ class ConfigurationError(Exception):
     def __str__(self):
         return self.msg
 
+
 class DependencyError(ConfigurationError):
     pass
-

fig/service.py

@@ -132,7 +132,6 @@ class Service(object):
 
         self.remove_stopped()
 
-
     def remove_stopped(self, **options):
         for c in self.containers(stopped=True):
             if not c.is_running:
@@ -459,12 +458,14 @@ def split_port(port):
             external_port = (external_ip,)
     return internal_port, external_port
 
+
 def split_env(env):
     if '=' in env:
         return env.split('=', 1)
     else:
         return env, None
 
+
 def resolve_env(key, val):
     if val is not None:
         return key, val

requirements-dev.txt

@@ -2,3 +2,4 @@ mock==1.0.1
 nose==1.3.0
 pyinstaller==2.1
 unittest2
+flake8

tox.ini

@@ -7,3 +7,9 @@ deps =
     -rrequirements-dev.txt
 commands =
     nosetests {posargs}
+    flake8 fig
+
+[flake8]
+# ignore line-length for now
+ignore = E501,E203
+exclude = fig/packages/