Your search +path:oslo +path:. +path:messaging-1 +path:. +path:4 +path:. +path:1 +path:tests +path:test_exception_serialization +path:. +path:py did not match any files.
Suggestions:

• Make sure all terms are spelled correctly.
• Try different keywords.
• Try more general keywords.
• Use 'wil*' cards if you are looking for partial match.