Tidying up Python

[Franco Vaccari]

You can use  

port notes python313

to get the answer:

--->  python313 has the following notes:
  To make this the default Python or Python 3 (i.e., the version run by the 'python' or 'python3' commands), run
  one or both of:
  
      sudo port select --set python python313
      sudo port select --set python3 python313

Ciao

Franco



> On 11 Jul 2025, at 10:15, Christoph Kukulies via macports-users <macports-users at lists.macports.org> wrote:
> 
> I don't know how all these python versions got installed. They all may have come over the years 
> and I didn't do anything special to keep them.
> 
> $ port rdependents
> The following ports are dependent on opencascade:
>   kicad
> $ sudo port reclaim
> Password:
> --->  Checking for unnecessary unrequested ports
> Found no unrequested ports without requested dependents.
> --->  Checking for inactive ports
> Found no inactive ports.
> --->  Building list of distfiles still in use
> --->  Searching for unused distfiles                     
> No unused files found.
> --->  Build location: /opt/local/var/macports/build
> --->  Scanning binaries for linking errors
> --->  No broken files found.                             
> --->  No broken ports found.
> 
> Two questions:
> 
> How do I select python-313 to python and python3? Something like
> 
> sudo port select --set python py313-python
> 
> doesn't seem to work.
> 
> ipython (which I already had set with the command below is at 3.13.2).
> 
> --
> Christoph
> 
>> Am 09.07.2025 um 15:42 schrieb Bill Cole <macportsusers-20171215 at billmail.scconsult.com>:
>> 
>> On 2025-07-09 at 08:30:18 UTC-0400 (Wed, 9 Jul 2025 14:30:18 +0200)
>> Christoph Kukulies via macports-users <kuku at kukulies.org>
>> is rumored to have said:
>> 
>>> Thanks, Nils,
>>> 
>>> for clarifying. I understand.
>>> $ port installed | grep '^[[:space:]]*py'
>>>  py27-cairo @1.18.2_0+quartz+x11 (active)
>>>  py27-cython @3.0.11_0 (active)
>>>  py27-gobject @2.28.7_2+x11 (active)
>>>  py27-numpy @1.16.6_4+gfortran+openblas (active)
>>>  py27-oldest-supported-numpy @0.1_0 (active)
>>>  py27-pygtk @2.24.0_6+x11 (active)
>>>  py27-setuptools @44.1.1_0 (active)
>>>  py311-numpy @1.26.4_3+gfortran+openblas (active)
>>>  py311-oldest-supported-numpy @0.1_0 (active)
>>>  py311-olefile @0.47_0 (active)
>>>  py311-Pillow @9.5.0_1 (active)
>>>  py311-pybind11 @2.13.6_0 (active)
>>>  py311-tkinter @3.11.11_0 (active)
>>>  py311-wxpython-4.0 @4.2.2_1 (active)
>>>  py312-cairo @1.27.0_0+quartz+x11 (active)
>>>  py312-gobject3 @3.46.0_0 (active)
>>>  py312-mako @1.3.9_0 (active)
>>>  py312-markdown @3.7_0 (active)
>>>  py312-markupsafe @3.0.2_0 (active)
>>>  py312-setuptools @77.0.3_0 (active)
>>>  py313-cairo @1.27.0_0+quartz+x11 (active)
>>>  py313-gdbm @3.13.2_0 (active)
>>>  py313-gobject3 @3.50.0_0 (active)
>>>  py313-meson @1.7.0_0 (active)
>>>  py313-setuptools @75.8.0_0 (active)
>>>  python2_select @0.1_0 (active)
>>>  python3_select @0.1_0 (active)
>>>  python3_select-38 @0.1_1 (active)
>>>  python3_select-311 @0.1_1 (active)
>>>  python3_select-312 @0.1_1 (active)
>>>  python3_select-313 @0.1_1 (active)
>>>  python27 @2.7.18_10+lto+optimizations (active)
>>>  python37 @3.7.17_0+optimizations (active)
>>>  python38 @3.8.20_0+optimizations (active)
>>>  python311 @3.11.11_0+lto+optimizations (active)
>>>  python312 @3.12.9_0+lto+optimizations (active)
>>>  python313 @3.13.2_0+lto+optimizations (active)
>>>  python_select @0.3_10 (active)
>>>  python_select-38 @0.3_1 (active)
>>>  python_select-311 @0.3_1 (active)
>>>  python_select-312 @0.3_1 (active)
>>>  python_select-313 @0.3_1 (active)
>>> $
>> 
>> You should figure out *why* you have 4 different Pythons installed and remove those that you don't need. You may need to reinstall some non-python dependents with an explicit python version variant. It is likely that you can get everything consolidated under one version (or maybe 2, if you really do need the 2.7 stuff.) 'port rdepedents' is useful for finding the ports to target.
>> 
>> 
>>> So it looks like that for now. I did that port install py-jupyter. After that I did
>>> 
>>> sudo port select --set ipython py313-ipython
>> 
>> That only affects the 'ipython' command. You need to fix the commands you actually use. Based on the installed list above, I don't see why the command you used didn't just fail.
>> 
>>> 
>>> But I still get:
>>> 
>>> $ which python3
>>> /opt/local/bin/python3
>>> $ python3
>>> Python 3.11.11 (main, Dec  7 2024, 11:56:41) [Clang 13.0.0 (clang-1300.0.29.3)] on darwin
>>> Type "help", "copyright", "credits" or "license" for more information.
>>>>>> quit()
>>> $ which python
>>> /opt/local/bin/python
>>> $ python
>>> Python 3.11.11 (main, Dec  7 2024, 11:56:41) [Clang 13.0.0 (clang-1300.0.29.3)] on darwin
>>> Type "help", "copyright", "credits" or "license" for more information.
>>>>>> quit()
>> 
>> To make the python and python3 commands point to python313, you need to use 'port select' for each of them.
>> 
>> 
>> 
>> -- 
>> Bill Cole
>> bill at scconsult.com or billcole at apache.org
>> (AKA @grumpybozo at toad.social and many *@billmail.scconsult.com addresses)
>> Not Currently Available For Hire
>