[Python-Dev] _length_cue() (original) (raw)

Armin Rigo arigo at tunes.org
Fri Feb 10 14:33:08 CET 2006

Hi Nick,

On Fri, Feb 10, 2006 at 11:21:52PM +1000, Nick Coghlan wrote:

Do they really need anything more sophisticated than:

def repr(self): return "%s(%r)" % (type(self).name, self.subiter) (modulo changes in the format of arguments, naturally. This simple one would work for things like enumerate and reversed, though)

My goal here is not primarily to help debugging, but to help playing around at the interactive command-line. Python's command-line should not be dismissed as "useless for real programmers"; I definitely use it all the time to try things out. It would be nicer if all these iterators I'm not familiar with would give me a hint about what they actually return, instead of:

itertools.count(17) count(17) # yes, thank you, not very helpful enumerate("spam") enumerate("spam") # with your proposed extension -- not better

However, if this kind of goal is considered "not serious enough" for adding a private special method, then I'm fine with trying out a fishing approach.

A bientot,

Armin.

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