From: Bulat Ziganshin <bulatz@...>
Date: 2002-09-30T23:18:49+09:00
Subject: Re: Where Is Method Call Precedence?

Hello William,

Monday, September 30, 2002, 5:16:37 PM, you wrote:

WDT> Everything below is "obvious" and natural, isn't it?  That's why I don't
WDT> understand why Python does not allow mutable object to be used as a 
WDT> hash/dictionary key in the first place.

eklmn! add one level of indirection:

s = "mutable"
hash = { [s] => "object" }
s.upcase!
p hash[["mutable"]] #=> nil

it's a well-known theoretical problem. call/asign by reference or by
value, and mutable objects versus non-modified

-- 
Best regards,
 Bulat                            mailto:bulatz@integ.ru