enhancements

- How do I avoid `from settings import *`? (or is it okay for `import *` in this case) I have two options, `import settings` or five `import` statements for each variable.
- Is it possible to avoid this line `bb_repo_urls = []`, but create a empty list later and append directly in while loop?
- Any way to improve this line : `"".join(map(lambda url...`

Locate the settings import, bb_repo_urls initialization, and the join/map expression in the repository; no files or tests are named in the issue. Clarify which of the three questions is in scope and define the expected behavior before attempting a refactor.

Written by the indexing model from the issue text.