To fix this change the python interpreter to `/usr/bin/python2.7` in two files ~]# cat /usr/bin/yum #!/usr/bin/python2.7 ~]# cat /usr/libexec/urlgrabber-ext-down #!/usr/bin/python2.7 Source Installation

~]# yum install ftp File '/usr/bin/yum', line 30 except KeyboardInterrupt, e: ^ Synta圎rror: invalid syntax Fix it here. Yum package manager usage python2 by default so after you make python3 as default the yum will break. You should see the version of Python 3 installed on your system as well as a change in the command prompt characters. ~]# python Python 3.6.8 (default, Aug 7 2019, 17:28:10) on linux Type 'help', 'copyright', 'credits' or 'license' for more information. In order to ensure that Python 3 is in fact installed and useable, we can drop into a Python 3 shell by running the following command. ~]# yum groupinstall -y 'Development Tools' & yum install gcc openssl-devel bzip2-devel libffi-devel -y Step 4: Set Python 3 as default ~]# alternatives -install /usr/bin/python python /usr/bin/python2 50 ~]# alternatives -install /usr/bin/python python /usr/bin/python3.6 60 ~]# alternatives -config python Verify Installation Install development tools and some prerequisite packages.

That’s it! Python 3 is now installed! Another helpful idea to consider is that PIP, the Python package manager for Python 3, is installed alongside the Python 3 package, so we don’t have to worry about that as an additional installation step. Thankfully, as of CentOS 7.7, Python 3 is available in the base package repository! Step 1: Update the environment ~]# yum update -y Step 2: Install Python 3 ~]# yum install -y python3 In CentOS 7 releases prior to 7.7, it was necessary to make Python 3 available for installation by setting up third-party repositories, such as the IUS repository, because the CentOS base repository did not provide a Python 3 package. These instructions assume that your server has CentOS release 7.7. In this tutorial, we are going to take a look at how to get up and running with Python 3 on a CentOS 7 server. However, Python 2 has reached its EOL on January 1, 2020. The CentOS 7 Linux distribution includes Python 2 by default.

Yum install python 3