From: Nathaniel Talbott Date: 2003-09-24T06:21:33+09:00 Subject: Hashes as keys I was just playing around with Hash#hash and discovered that you can't use a Hash as a key in a hash: h = {{} => 'a'} p h[{}] => nil Is this intentional? Since hash overrides #==, I expected it to do the same with #hash, but it appears that it just uses Object#hash, which is different for every instance. Thanks, Nathaniel <:((><