Rick Johnson:
Really?
Yes. >> a = [1,2] => [1, 2] >> a.push(3) => [1, 2, 3] >> a => [1, 2, 3] This could be called "mutation without exclamation". >> require 'WEBrick' => true >> vowels = "[aeiou]+" => "[aeiou]+" >> vowels.object_id => 2234951380 >> WEBrick::HTTPUtils._make_regex!(vowels) => /([^\[aeiou\]\+])/n >> vowels => "[aeiou]+" >> vowels.object_id => 2234951380 The counterpart, exclamation without mutation. Neil -- http://mail.python.org/mailman/listinfo/python-list
