inotify: catch Exception instead of nothing

d2d7477f236f087993833296a0dd0c5324983a83 changed from catching
ImportError to blindly catching everything.

Catch Exception instead, per PEP-8.

Related-to: #384
Suggested-by: Daniel Harding <dharding@living180.net>
Signed-off-by: David Aguilar <davvid@gmail.com>