Installing Python 3 on RHEL
I'm trying to install python3 on RHEL using the following steps:
yum search python3
Which returned No matches found for: python3
Followed by:
yum search python
None of the search results contained python3. What should I try next?
Answer
Installing from RPM is generally better, because:
- you can install and uninstall (properly) python3.
- the installation time is way faster. If you work in a cloud environment with multiple VMs, compiling python3 on each VMs is not acceptable.
Solution 1: Red Hat & EPEL repositories
Red Hat has added through the EPEL repository:
- Python 3.4 for CentOS 6
- Python 3.6 for CentOS 7
[EPEL] How to install Python 3.4 on CentOS 6
sudo yum install -y epel-release
sudo yum install -y python34
# Install pip3
sudo yum install -y python34-setuptools # install easy_install-3.4
sudo easy_install-3.4 pip
You can create your virtualenv using pyvenv:
pyvenv /tmp/foo
[EPEL] How to install Python 3.6 on CentOS 7
With CentOS7, pip3.6 is provided as a package :)
sudo yum install -y epel-release
sudo yum install -y python36 python36-pip
You can create your virtualenv using pyvenv:
python3.6 -m venv /tmp/foo
If you use the pyvenv script, you'll get a WARNING:
$ pyvenv-3.6 /tmp/foo
WARNING: the pyenv script is deprecated in favour of `python3.6 -m venv`
Solution 2: IUS Community repositories
The IUS Community provides some up-to-date packages for RHEL & CentOS. The guys behind are from Rackspace, so I think that they are quite trustworthy...
Check the right repo for you here:
[IUS] How to install Python 3.6 on CentOS 6
sudo yum install -y https://repo.ius.io/ius-release-el6.rpm
sudo yum install -y python36u python36u-pip
You can create your virtualenv using pyvenv:
python3.6 -m venv /tmp/foo
[IUS] How to install Python 3.6 on CentOS 7
sudo yum install -y https://repo.ius.io/ius-release-el7.rpm
sudo yum install -y python36u python36u-pip
You can create your virtualenv using pyvenv:
python3.6 -m venv /tmp/foo