trains[azure] give you the possibility to do the following:
from trains import StorageManager my_local_cached_file = StorageManager.get_local_copy('azure://bucket/folder/file.bin')This means you do not have to manually download stuff/ and maintain the cache local cache, the StorageManager will do that for you.
If you do no need that ability, no need to install the trains[azure] you can just install trains
Unfortunately, we haven't had the time to upgrade to the Azure storage v2 package (they changed the entire interface), and this is why the requirements collides with your installed packages. This is still on the to do list 🙂