Tres Seaver wrote:
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On 05/12/2012 08:04 AM, Nick Coghlan wrote:
On Sat, May 12, 2012 at 12:40 PM, Eric Snow
<ericsnowcurren...@gmail.com> wrote:
If anyone has strong feelings for item-access over
attribute-access, please elaborate. I'm just not seeing it as that
important and would rather finish up the PEP as simply as possible.
I object to adding a new type to the stdlib just for this PEP. Since
iterating over the keys is significantly more useful than iterating
over the values, that suggests a dictionary as the most appropriate
type.
Why would anyone want to iterate over either of them?
1) I don't know what keys exist, so I use introspection on sys.implementation
by iterating over the keys and/or values. E.g. dir(sys.implementation), or
list(sys.implementation.keys()).
2) I know what keys exist, but I want to pretty-print the list of key/value
pairs without having to explicitly write them out by hand:
print("spam", sys.implementation.spam)
print("ham", sys.implementation.ham)
print("cheese", sys.implementation.cheese)
# and so on...
--
Steven
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