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Re:Announcing the new Rust package manager, Cargo by mercurial on Tuesday March 18, 2014 @03:40AM (#7420647)
> Python 3 is a bad choice in my opinion as it hasn't learned from the precedent of Perl 6 "failure" (this was finally resolved when Perl 5 development has been restarted).

I think they suffer from opposite issues. Perl 6's problem is that it was way too ambitious for the manpower behind it, and it turned into the Duke Nukem Forever of programming languages. The issue with Python 3 was that it introduced breaking changes, but was widely felt not to bring enough to the table to warrant these changes.

Re:Announcing the new Rust package manager, Cargo by lifthrasiir on Tuesday March 18, 2014 @04:56AM (#7420853)
Dividing the language is bad in general, since it essentially divides the ecosystem behind them. In the case of Perl 6 the ecosystem couldn't control the ambitious development goal; in the case of Python 3 the ecosystem could control that but could not realize that the smooth transition plan is still a transition. There are less problematic but similar causes in other languages, PHP 4 vs. PHP 5 vs. PHP 5.3 (oops!), D 1.0 vs. D 2.0 and so on.