ciao artemio,
> Hi, Giuseppe,
<omissis>
> So my questions are:
>
> 1. Should I activate python39 and decativate python37 before installing the
> 3.9 versions fo numpy, scipy and matplotlib?
I would daresay to remove everything (—force option would be handy) and then
start over again from scratch :-)
> Can both be active at the same time after that, or should I keep 3.7 inactive
> for good (or unistall it)?
you can have python37 and python39 both installed and active and choose with
port select which one to use as python3 default version.
wabi:macports-ports admin$ port installed python3\*
The following ports are currently installed:
python3_select @0.0_2 (active)
python37 @3.7.12_0+optimizations (active)
python39 @3.9.7_0+optimizations (active)
wabi:macports-ports admin$ port select --list python3
Available versions for python3:
none
python37
python38-apple
python39 (active)
wabi:macports-ports admin$
nevertheless imho, being your first try with macports, i would suggest to
choose one version and have it working with a specific version.
you will always have time to experimenting with more than one version.
> 2. Should I install (say) py-numpy or more specifically py39-numpy?
from macports perspective that is the same port (more specifically py39-numpy
is a subport of py-numpy.
thus if you install py-numpy you shall end up with py39-numpy.
> 3. Is it OK if the 3.7 versions of the py-* package are active throughout
> this installation process (and afterwards), or should I also deactivate them?
as i mentioned before i would deactivate/uninstall the python37 versions just
to be double sure.
> 4. Will "jupyter notebook” automatically find the scientific libraries I’m
> going to install, or should I do something else (like, e.g., create an
> environment)?
apologies, on this one i have to surrender since in this case it’s me not
coming from math :-)
my experience with macports makes me think it should work out of the box, yet
that is really above my paygrade. sorry
> Again, I apologize for my ignorance (I’m coming from Mathematica, but I would
> like to try python out because many of my colleagues now use it).
absolutely no need to apologize! i am sure if i were coming with silly
questions on math you would do your best to help me out ;-)
cheers,
—
ferdy
> Artemio
>
>
> Artemio Gonzalez Lopez
> [email protected] <mailto:[email protected]>
