wsl 우분투 파이썬 버전 변경

• 현재 버전: wsl ubuntu-20.04

1. 현재 파이썬 버전 확인

python3 -V
Python 3.8.10

2. 원하는 파이썬 버전 설치

나는 파이썬 3.10 버전을 설치하려고 한다.

https://www.python.org/downloads/source/

여기서 원하는 버전을 찾는다.
(나는 3.10.13 버전을 선택했다.)

$ wget https://www.python.org/ftp/python/3.10.13/Python-3.10.13.tgz

--2023-11-25 23:46:48--  https://www.python.org/ftp/python/3.10.13/Python-3.10.13.tgz
Resolving www.python.org (www.python.org)... 146.75.48.223, 2a04:4e42:7c::223
Connecting to www.python.org (www.python.org)|146.75.48.223|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 26111363 (25M) [application/octet-stream]
Saving to: ‘Python-3.10.13.tgz’

Python-3.10.13.tgz            100%[=================================================>]  24.90M  98.7MB/s    in 0.3s

2023-11-25 23:46:49 (98.7 MB/s) - ‘Python-3.10.13.tgz’ saved [26111363/26111363]

3. 압축 풀기

$ tar -xzvf Python-3.10.13.tgz

Python-3.10.13/
Python-3.10.13/Mac/
Python-3.10.13/Mac/README.rst
Python-3.10.13/Mac/Icons/
Python-3.10.13/Mac/Icons/PythonLauncher.icns
Python-3.10.13/Mac/Icons/IDLE.icns
...
Python-3.10.13/Objects/namespaceobject.c
Python-3.10.13/Objects/listsort.txt
Python-3.10.13/Objects/dictnotes.txt
Python-3.10.13/Programs/
Python-3.10.13/Programs/README
Python-3.10.13/Programs/python.c
Python-3.10.13/Programs/_testembed.c
Python-3.10.13/Programs/_freeze_importlib.c

4. 필요한 패키지 설치

$ sudo apt-get install build-essential checkinstall
$ sudo apt-get install libreadline-gplv2-dev libncursesw5-dev libssl-dev \
    libsqlite3-dev tk-dev libgdbm-dev libc6-dev libbz2-dev libffi-dev zlib1g-dev

5. 파이썬 설치

먼저 압축 푼 파이썬 폴더로 이동

$ cd Python-3.10.13

이후 컴파일

$ sudo ./configure --enable-optimizations

$ sudo make altinstall

6. 설치 확인

$ python3.10
Python 3.10.13 (main, Nov 26 2023, 00:01:09) [GCC 9.4.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>

7. 참고
   https://seongkyun.github.io/others/2019/05/09/ubuntu_python/
   https://freedeveloper.tistory.com/254