wip: cleanup and minor refactoring

svupdater/approvals.py

 """Access and control functions of update approvals."""
 import datetime
-import os
 import time
 import typing
 

svupdater/notify.py

@@ -131,6 +131,10 @@ def changes():
 def approval():
     """Send notification about approval request."""
     apprv = approvals.current()
+    if apprv is None:
+        # TODO: Is it ok to just return?
+        return
+
     changelist = ""
     for pkg in apprv["plan"]:
         changelist += f"\n • {pkg['op'].title()} {pkg['name']} {'' if pkg['new_ver'] is None else pkg['new_ver']}"