sqlite does not provide helpful error messages when the parent folder does not exist

I started building[1] on an example from the docs here, but wasn't able to find a method to remove these sample Scraps added with glue:

sb.glue("hello", "world")
sb.glue("number", 123)
sb.glue("some_list", [1, 3, 5])
sb.glue("some_dict", {"a": 1, "b": 2})
sb.glue("non_json", df, 'pandas')

Does a reverse operat

Currently, nbcelltests' tests use various .ipynb files stored in nbcelltests/tests. Instead, we should generate notebooks as needed during the tests.

Doing this will allow various bits of test code to be simplified.