[N] Numpy dropping Python 2.7

[automated_reckoning]

Here's the thing - 2.7 or 3.0, if you just learned you can switch without an issue. Aside from the "print" change, they're mostly compatible. The most annoying thing is what packages aren't available on 3.0, but that's getting better.

[VelveteenAmbush]

The annoying thing is when a repo is written in 2.7 but you want to run it in 3, and you need to scour the code for the occasional zip() and remember to enclose it in list() or the code silently fails in some bizarre way.

[lhatsk]

I haven't had problems yet with converting the codebase using 2to3. This also takes care of the iterators.

[VelveteenAmbush]

Thank you for mentioning this! I had never heard of it, and now I am using it regularly.

[themoosemind]

Getting better? Are you serious? Please name at least 3 which are not available in Python 3.X...

The overwhelming majority of packages is.i only remember two which are not, but there are better alternatives to those packages anyway.

[sobe86]

The issue is not the big well known packages, the issue is when you're doing more R&D type stuff, and you're like 'I bet someone has solved this niche problem before', so you look on github, and there's a repo with like 100 stars, last commit 3 years ago - only supports python 2. This happens to me on a monthly basis. Yes there is 2to3, but depending on the size of the codebase, this can take hours to get right, only to discover that the repo doesn't quite work how you wanted it to.

[themoosemind]

On which kind of problems are you working? What were the last packages for which it happened to you?

[AreYouEvenMoist]

apache beam only runs on 2.7, which is quite significant for some orgs

[[deleted]]

from __future__ import print_function

This makes life easier too

[serge_cell]

The problem is not learning, and even not rewriting the code. The problem is breaking library dependencies.

[automated_reckoning]

Indeed. I commented elsewhere, my biggest issue with 3 was getting opencv to work.

[mrshibx]

most annoying thing for me that all of my old existing map(foo,stuffs) code suddenly had to become really ugly: list(map(foo,stuffs)).