PEP8 fixes

flaskbb/cli/commands.py

@@ -142,38 +142,40 @@ def get_version(ctx, param, value):
         'python_version': sys.version.split("\n")[0]
     }, color=ctx.color)
     ctx.exit()
-    
-    
+
 
 def createapp(info):
-    config_to_use=getattr(info,'config_to_use',Config)
-    
+    config_to_use = getattr(info, 'config_to_use', Config)
+
     click.echo('creating app with config: {}'.format(config_to_use))
     return create_app(config_to_use)
 
-def set_config(ctx,param,value):
+
+def set_config(ctx, param, value):
     if value:
-        config_to_use=value
+        config_to_use = value
         try:
-            mod,obj=config_to_use.rsplit('.',1)
+            mod, obj = config_to_use.rsplit('.', 1)
             import importlib
-            m=importlib.import_module(mod)
-            config=getattr(m,obj)
-        except (ValueError,ImportError):
-            click.echo('Cannot load module specified')
-            ctx.exit()
+            m = importlib.import_module(mod)
+            config = getattr(m, obj)
+        except (ValueError, ImportError):
+            raise FlaskBBCLIError("Cannot load the specified module.",
+                                  fg="red")
         except AttributeError:
-            click.echo('Cannot find config object in specified module')
-        
-        ctx.ensure_object(ScriptInfo).config_to_use=config
-        
+            raise FlaskBBCLIError("Cannot find the config object in "
+                                  "the specified module.", fg="red")
+
+        ctx.ensure_object(ScriptInfo).config_to_use = config
+
 
 @click.group(cls=FlaskGroup, create_app=createapp)
 @click.option("--version", expose_value=False, callback=get_version,
               is_flag=True, is_eager=True, help="Show the FlaskBB version.")
-@click.option("--config",expose_value=False, callback=set_config, required=False,
-              is_flag=False, is_eager=True, 
-              help="Specify the config to use in dotted module notation eg flaskbb.configs.default.DefaultConfig ")
+@click.option("--config", expose_value=False, callback=set_config,
+              required=False, is_flag=False, is_eager=True,
+              help="Specify the config to use in dotted module notation "
+                   "e.g. flaskbb.configs.default.DefaultConfig")
 def main():
     """This is the commandline interface for flaskbb."""
     pass