Comment 1 for bug 406113

The problem as I see it is that if you manage, in whatever way, to get a copy of bzr that doesn't load its extensions, it will silently fall back on every run.

If you really want just the python code obviously this is desirable but I think that's the abnormal case.

How about: we will always give a warning (or even error) if failing to load them, unless an environment variable or config setting is given to turn it off?