[Python-Dev] Re: opcode performance measurements
Fri, 01 Feb 2002 11:21:14 +0100
Jeremy Hylton wrote:
> >>>>> "GM" == Gordon McMillan <firstname.lastname@example.org> writes:
> GM> Heck, Marc-Andre tricks import so that pkg.mod is really
> GM> pkg.attr where the attr turns into a mod when accessed. No
> GM> problem, since it's only import that cares what it is. By the
> GM> time it's used it's always global.attr.attr....
> Not sure I understand what Marc-Andre is doing. (That's probably true
> in general <wink>.) A client of his code types "import foo.bar."
> foo is a module? a package? When the "bar" attribute is loaded
> (LOAD_ATTR) is turns into another module?
Take a look at e.g. mx.DateTime.__init__ and the included
LazyModule module for more background.
I don't really use that approach myself, but sometimes it can be
handy to be able to reference modules in packages without
requiring an import of them, e.g.
date = mx.DateTime.Parser.DateTimeFromString('2002-02-01')
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