Note: This may be obsolete for current versions of Amazon Linux 2 since late 2018 (see comments), you can now directly install it via yum install python3.

In Amazon Linux 2, there isn't a python3[4-6] in the default yum repos, instead there's the Amazon Extras Library.

Copysudo amazon-linux-extras install python3

If you want to set up isolated virtual environments with it; using yum install'd virtualenv tools don't seem to reliably work.

Copyvirtualenv --python=python3 my_venv

Calling the venv module/tool is less finicky, and you could double check it's what you want/expect with python3 --version beforehand.

Copypython3 -m venv my_venv

---

Other things it can install (versions as of 18 Jan 18):

Copy[ec2-user@x ~]$ amazon-linux-extras list
  0  ansible2   disabled  [ =2.4.2 ]
  1  emacs   disabled  [ =25.3 ]
  2  memcached1.5   disabled  [ =1.5.1 ]
  3  nginx1.12   disabled  [ =1.12.2 ]
  4  postgresql9.6   disabled  [ =9.6.6 ]
  5  python3=latest  enabled  [ =3.6.2 ]
  6  redis4.0   disabled  [ =4.0.5 ]
  7  R3.4   disabled  [ =3.4.3 ]
  8  rust1   disabled  [ =1.22.1 ]
  9  vim   disabled  [ =8.0 ]
 10  golang1.9   disabled  [ =1.9.2 ]
 11  ruby2.4   disabled  [ =2.4.2 ]
 12  nano   disabled  [ =2.9.1 ]
 13  php7.2   disabled  [ =7.2.0 ]
 14  lamp-mariadb10.2-php7.2   disabled  [ =10.2.10_7.2.0 ]

Hello, The latest stable version of Python available for Amazon Linux 2 AMI is 3.8 and you may install it using the amazon-linux-extras library. [+] Extras library (Amazon Linux 2) - https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/amazon-linux-ami-basics.html#extras-library Regarding OpenSSL, Amazon Linux 2 comes with OpenSSL 1.0.2 by default. [+] https://docs.aws.amazon.com/linux/al2023/ug/compare-with-al2.html Any security concerns and CVE’s regarding OpenSSL could be found in the document below : https://alas.aws.amazon.com/alas2.html In order to apply the security updates for OpenSSL, you may run the “yum update openssl” command on the instance. Additionally, you may keep an eye on the documents below for information about the upcoming features and announcements to services in order to check for the availability of the latest versions of the above packages in Amazon Linux 2 : - What’s New - https://aws.amazon.com/new/ - AWS Blog - https://aws.amazon.com/blogs/aws/ Further, you may manually install the required Python version (Python 3.10) from the official Python download page and configure it on your instance. Please find below a third-party article that I hope would be helpful to you : https://techviewleo.com/how-to-install-python-on-amazon-linux-2/