Py3: macOS specific fixes

More will be needed

sabnzbd/__init__.py

@@ -61,6 +61,7 @@ elif os.name == "posix":
         try:
             import Foundation
             import sabnzbd.utils.sleepless as sleepless
+
             FOUNDATION = True
         except:
             pass

sabnzbd/osxmenu.py

@@ -33,7 +33,8 @@ import logging
 import sabnzbd
 import sabnzbd.cfg
 
-from sabnzbd.filesystem import get_filename, get_ext, diskspace, to_units
+from sabnzbd.filesystem import get_filename, get_ext, diskspace
+from sabnzbd.misc import to_units
 from sabnzbd.constants import VALID_ARCHIVES, VALID_NZB_FILES, MEBI, Status
 from sabnzbd.panic import launch_a_browser
 import sabnzbd.notifier as notifier

sabnzbd/utils/__init__.py

@@ -0,0 +1 @@
+# Needed so the import always works