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From: Paul Rubin <no.email@nospam.invalid>
Newsgroups: comp.lang.python
Subject: Re: Guido on python3 for beginners
Date: Wed, 17 Feb 2016 22:59:14 -0800
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Steven D'Aprano <steve+comp.lang.python@pearwood.info> writes:
> I suppose that it is objectively correct that it is harder to learn
> than Python 2. But I don't think the learning curve is any steeper. If
> anything, the learning curve is ever-so-slightly less steep.

I think py3 has more learning curve because it uses iterators in places
where py2 uses lists.  That's a significant new concept and it can be
bug-prone even for programmers who are experienced with it.