fix the tox tool

Author: caberos

SoftLayer/CLI/object_storage/credential/__init__.py

@@ -37,6 +37,7 @@ def get_command(self, ctx, cmd_name):
             return getattr(module, 'cli')
         except ModuleNotFoundError as ex:
             print(ex.name)
+            return None
 
 
 # Required to get the sub-sub-sub command to work.

SoftLayer/CLI/virt/capacity/__init__.py

@@ -42,6 +42,7 @@ def get_command(self, ctx, cmd_name):
             return getattr(module, 'cli')
         except ModuleNotFoundError as ex:
             print(ex.name)
+            return None
 
 
 # Required to get the sub-sub-sub command to work.

SoftLayer/CLI/virt/placementgroup/__init__.py

@@ -41,6 +41,7 @@ def get_command(self, ctx, cmd_name):
             return getattr(module, 'cli')
         except ModuleNotFoundError as ex:
             print(ex.name)
+            return None
 
 
 # Required to get the sub-sub-sub command to work.