Do not import multiple modules on one line

It is preferable [1] to import one module per line:

    import os
    import sys
    import time

Rather than importing them all on one line:

    import os, sys, time

Having imports listed one per line makes changes much more obvious, and
generally makes it easier to understand what the code is doing.

[1]: https://peps.python.org/pep-0008/#imports

Author: larsks

defaults.py

@@ -1,4 +1,6 @@
-import os, time, uuid
+import os
+import time
+import uuid
 
 gpu = "v100"
 image = "image-registry.openshift-image-registry.svc:5000/redhat-ods-applications/csw-run-f25:latest"