Python 3.8 : Install

 

Install Python 3.8.

[1]. It's possible to install Python 3.8 from AppStream.

[root@dlp ~]# dnf module -y install python38

CentOS-8 - AppStream                            5.2 MB/s | 5.8 MB     00:01

CentOS-8 - Base                                 3.2 MB/s | 2.2 MB     00:00

CentOS-8 - Extras                               6.3 kB/s | 6.7 kB     00:01

Dependencies resolved.

========================================================

 Package   Arch    Version      Repo        Size

========================================================

Installing group/module packages:

 python38                    x86_64  3.8.0-6.module_el8.2.0+317+61fa6e7d  AppStream   76 k

Installing dependencies:

 python38-libs               x86_64  3.8.0-6.module_el8.2.0+317+61fa6e7d  AppStream  8.2 M

 python38-pip-wheel          noarch  19.2.3-5.module_el8.2.0+317+61fa6e7d AppStream  1.2 M

 python38-setuptools-wheel   noarch  41.6.0-4.module_el8.2.0+317+61fa6e7d AppStream  304 k

Installing weak dependencies:

 python38-pip                noarch  19.2.3-5.module_el8.2.0+317+61fa6e7d AppStream  1.9 M

 python38-setuptools         noarch  41.6.0-4.module_el8.2.0+317+61fa6e7d AppStream  667 k

Installing module profiles:

 python38/common

Enabling module streams:

 python38                            3.8

Transaction Summary

========================================================

Install  6 Packages

.....

.....

[root@dlp ~]# python3 -V

Python 3.8.0

# verify to create test script

[root@dlp ~]# echo -e "import sys\nprint(sys.version)" > python3_test.py

[root@dlp ~]# python3 python3_test.py

3.8.0 (default, May 7 2020, 02:49:39)

[GCC 8.3.1 20191121 (Red Hat 8.3.1-5)]

[2]. If you'd like to use [python] command which does not have version number, it's possible to switch them with [alternatives].

[root@dlp ~]# alternatives --config python

There are 3 programs which provide 'python'.

 Selection    Command

-----------------------------------------------

*+ 1           /usr/libexec/no-python

   2           /usr/bin/python3

   3           /usr/bin/python3.8

Enter to keep the current selection[+], or type selection number: 3

[root@dlp ~]# python -V

Python 3.8.0

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