If people spent as much time upgrading as they spent time complaining about having to upgrade we would have made a lot of progress.
That's a pretty pointless argument for a variety of reasons. The biggest one is that there is no reason to upgrade because Python 3 does not have a business benefit for lots of people.
As a person maintaining open source code Python 3 for me doubles my work for zero benefit as I'm not using Python 3 myself.
As a person working in a company upgrading to Python 3 means that I lose compatibility to the ecosystem and PyPy. If I support both, then why not just continue using Python 2?
Aside of that, there is so much stuff in Python 3 that is barely reviewed because there are no users that it's really damn hard to argue that it's unconditionally a better language.
//EDIT: arguing with "if people" is not useful in general anyways because a system would obviously be most efficient if all actors in it, would share the same ideals. But that's not how the world works. You could use the same argument to ask for why we don't have world peace.
So write your code to be compatible with 2 and 3. In most cases, this is very easy, and the right way to go. Many open source projects do it that way (mine included).
Also, if maintaining a Py3 version doubles your work, you are doing it wrong. Running your tests in a different interpreter should in no way double your work.
That doesn't change anything. A doubling of work implies that you're effectively got two completely independent code flows. If that is the case, you're doing it wrong, whether you're guido, mitsuhiko, Awful coder #4,003 or anyone else.
I don't think he is suggesting that his work is wrong but that he maybe finds fault in something just because he is using the wrong methods that double efforts when he shouldn't have to.
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u/mitsuhiko Flask Creator May 26 '14
That's a pretty pointless argument for a variety of reasons. The biggest one is that there is no reason to upgrade because Python 3 does not have a business benefit for lots of people.
As a person maintaining open source code Python 3 for me doubles my work for zero benefit as I'm not using Python 3 myself.
As a person working in a company upgrading to Python 3 means that I lose compatibility to the ecosystem and PyPy. If I support both, then why not just continue using Python 2?
Aside of that, there is so much stuff in Python 3 that is barely reviewed because there are no users that it's really damn hard to argue that it's unconditionally a better language.
//EDIT: arguing with "if people" is not useful in general anyways because a system would obviously be most efficient if all actors in it, would share the same ideals. But that's not how the world works. You could use the same argument to ask for why we don't have world peace.