In short, most stuff works with 2 and 3, and you should use 3. You can
install both, they're independent. virtualenvs are your friend. Also,
"import this" if you haven't already :)
In full, it's quite complex. See
https://wiki.python.org/moin/Python2orPython3
For most features and least hassle, use 3 and ignore 2 if you can. If
you have old 2 code of your own, have a look at http://python-future.org/
Stuff being 2 only is a bit of a red flag. It's likely unmaintained or
has architectural or testing problems such that it can't be ported. Some
newer stuff is 3 only-- typically to rely on new 3 only features like
asyncio. 2 and 3 stuff is so because of some effort by the developers to
make it so.
Russell
On 26/04/17 20:59, Michael wrote:
What is involved in switching from python 27 to python 36?
I've been using python 27 for a while. I've run into a problem with youtube-dl
needing a newer python.
But I don't know what I need to do to safely update. It's not like python2 is a different
program than python3 (same "python" in both cases), and as I understand it, not
everything written for P2 is compatible with P3.
So what's the proper way to upgrade?
Or is there a way to have both installed at the same time? (but then ...
!#/usr/bin/env python ...)
---
Entertaining minecraft videos
http://YouTube.com/keybounce
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