I can't use Python 3.10

[Reikurooo]

Hello! I hope that I'm writing in the right category.

I want to use the 3.10 version for a script, but I'm struggling to use this version. I installed it, but when I type python --version it gives me the 3.9.10 version only.

What can I do to use the 3.10?

[deanhystad]

python --version will list the version of python runs when you type "python". This may not be the most recent version.

What is printed if you type this in a shell:

Output:
py --list

Does it show -3.10 as well as 3.9.10?

Are you running in a virtual environment?

Are you on Linux, Mac or Windows?

[Larz60+]

python version was 3.1, not 3.1.0 released on 13 February 2009
sane with 3.2 which was released on 20 February 2011

versions beginning with 3.0.0 contained the third division

see: https://www.python.org/doc/versions/

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EDIT:
Sorry, you asked about 3.10. I misread.

---

[Axel_Erfurt]

try to find installed python3 versions

from subprocess import check_output
import sys

# find all installed python3 versions
python_version = ""
python_versions_list = []
versions = check_output("which -a python3", shell=True).decode()
versions_list = versions.splitlines()

for v in versions_list:
    version = check_output(f"{v} --version", shell=True).decode().rpartition(".")[0].split(" ")[1]
    python_versions_list.append(version)
    print(f"found python{version}")

python_version = f'python{sys.version.split(" ")[0].rpartition(".")[0]}'

print("default python3 version:", python_version)

[Reikurooo]

python --version will list the version of python runs when you type "python". This may not be the most recent version.

What is printed if you type this in a shell:

Output:
py --list

Does it show -3.10 as well as 3.9.10?

Are you running in a virtual environment?

Are you on Linux, Mac or Windows?

Hello! I'm on Mac and I don't use a virtual environment. When I type your command in the terminal, it gives me zsh: command not found: py

[Reikurooo]

try to find installed python3 versions

from subprocess import check_output
import sys

# find all installed python3 versions
python_version = ""
python_versions_list = []
versions = check_output("which -a python3", shell=True).decode()
versions_list = versions.splitlines()

for v in versions_list:
    version = check_output(f"{v} --version", shell=True).decode().rpartition(".")[0].split(" ")[1]
    python_versions_list.append(version)
    print(f"found python{version}")

python_version = f'python{sys.version.split(" ")[0].rpartition(".")[0]}'

print("default python3 version:", python_version)

There is the result: Python 3.10.2 (v3.10.2:a58ebcc701, Jan 13 2022, 14:50:16) [Clang 13.0.0 (clang-1300.0.29.30)] on darwin