[SOLVED] Set Python 3.11 as the default Python3 on RHEL

Calab · 04-21-2023, 09:13 PM

I have a machine running RHEL 7.9. On this system I have python 2.7.5, 3.7.11 and 3.11.2. All seem to be working as they should.

The system default for python3 is 3.7. How can I have the system use python 3.11 as the default python3?

I have added python 3.7 and 3.11 to the alternatives, and selected 3.11 as the default, but I still get 3.7 when I run python3:

$ update-alternatives --list | grep py
python3 manual /usr/bin/python3.11
$ python3 -V
Python 3.7.11
$ update-alternatives --config python3

There are 2 programs which provide 'python3'.

Selection Command
-----------------------------------------------
1 /usr/bin/python3.7
*+ 2 /usr/bin/python3.11

Enter to keep the current selection[+], or type selection number:

lvm_ · 04-22-2023, 04:01 AM

/usr/bin/python3 is a link to a versioned binary, point it to python3.11

pan64 · 04-22-2023, 04:32 AM

do not change the default python. That will kill your system.

teckk · 04-22-2023, 10:12 AM

You can also call the version on the shebang.

Code:

#!/usr/bin/python3.11

import random

mylist = list("abcdefg")
random.shuffle(mylist)
print(mylist)

Calab · 04-25-2023, 08:19 AM

Quote:

Originally Posted by pan64

do not change the default python. That will kill your system.

Thanks! I won't be changing the default.