How To Install Python 3.9 On CentOS 8

In this short tutorial we will learn how to iinstall Python 3.9 on CentOS 8 operating system.

Introduction

Python 3.9 is the latest version of the Python programming language, released in October 2020. It includes several new features and improvements over previous versions, including:

  • Performance improvements: Python 3.9 includes a number of performance improvements, including faster method calls, faster dictionary operations, and faster parsing of data structures.
  • Type hinting: Python 3.9 adds support for more precise types in function signatures, allowing developers to catch type errors earlier in the development process.
  • New syntax features: Python 3.9 adds a number of new syntax features, including support for structural pattern matching, improved decorators, and more flexible string handling.
  • Improved time zone support: Python 3.9 includes improvements to the handling of time zones, making it easier to work with dates and times across different time zones.
  • Other improvements: Python 3.9 also includes a number of other improvements, such as better error messages, improved support for concurrent programming, and improved support for the import system.

Python 3.9 is a significant update to the language and includes many improvements and new features that make it a great choice for developing a wide range of applications. It is backward-compatible with earlier versions of Python, so existing Python code should run without any issues on Python 3.9.

Python 3.9 Installation On CentOS 8

Prerequisites

The Python 3.9 installation required the GCC compiler on our system. We will verify, if our system has GCC installed.For this purpose we will submit the following command line :

$ gcc --version

Output :

[ramans@diginetapp02 ~]$ gcc --version
gcc (GCC) 8.4.1 20200928 (Red Hat 8.4.1-1)
Copyright (C) 2018 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

If we have no GCC compiler yet, then we have to install prerequisites packages.

Then Python 3.9 Installation on CentOS 8 step will be mentined below :

  1. Download Python 3.9
  2. Install Python on CentOS 8
  3. Verifying Python Version

1. Download Python 3.9

At this step, we will download the latest Python 3.9 by using wget command line as shown below :

$ wget https://www.python.org/ftp/python/3.9.7/Python-3.9.7.tgz

Output :

[ramans@diginetapp02 ~]$ wget https://www.python.org/ftp/python/3.9.7/Python-3.9.7.tgz
--2021-10-06 19:07:44-- https://www.python.org/ftp/python/3.9.7/Python-3.9.7.tgz
Resolving www.python.org (www.python.org)... 199.232.44.223, 2a04:4e42:48::223
Connecting to www.python.org (www.python.org)|199.232.44.223|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 25755357 (25M) [application/octet-stream]
Saving to: ‘Python-3.9.7.tgz’

Python-3.9.7.tgz 100%[==================================>] 24.56M 3.05MB/s in 8.7s

2021-10-06 19:07:53 (2.82 MB/s) - ‘Python-3.9.7.tgz’ saved [25755357/25755357]

 

2. Install Python 3.9 On CentOS 8

After downloading Python 3.9 source, then we will install it by following these steps :

1. extract the Python 3.9 tarball, by submitting command line :

$ tar xzf Python-3.9.7.tgz

2. Install Python 3.9

$ cd Python-3.9.7/
$ ./configure --enable-optimizations

The output :

[ramans@diginetapp02 ~]$ cd Python-3.9.7/
[ramans@diginetapp02 Python-3.9.7]$ ./configure --enable-optimizations
checking build system type... x86_64-pc-linux-gnu
checking host system type... x86_64-pc-linux-gnu
checking for python3.9... no
checking for python3... python3
checking for --enable-universalsdk... no
checking for --with-universal-archs... no
checking MACHDEP... "linux"
checking for gcc... gcc
checking whether the C compiler works... yes
...
checking whether compiling and linking against OpenSSL works... no
checking for --with-ssl-default-suites... python
checking for --with-builtin-hashlib-hashes... md5,sha1,sha256,sha512,sha3,blake2
configure: creating ./config.status
config.status: creating Makefile.pre
config.status: creating Misc/python.pc
config.status: creating Misc/python-embed.pc
config.status: creating Misc/python-config.sh
config.status: creating Modules/ld_so_aix
config.status: creating pyconfig.h
creating Modules/Setup.local
creating Makefile

Then we will build Python 3.9 on CentOS 8, by submitting command line :

$ sudo make altinstall

3. Verifying Python 3.9

After installation was completed done, then we will verify its version, by submitting command line below :

$ python3.9 --version

Output :

[ramans@diginetapp02 ~]$ python3.9 --version
[ramans@diginetapp02 ~]$ 
Python 3.9.7

Conclusion

The Python 3.9 installation was completed done. I hope this tutorial will be helpful.

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