How to install python 3.9 alongside python 3.8 on CentOS 7?
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To install Python 3.9 alongside Python 3.8 on CentOS 7, you can do this safely using either altinstall or environment managers like pyenv. Below is a detailed guide using the altinstall method (safe for keeping multiple versions side by side).

 

Step 1: Install Required Build Dependencies

sudo yum groupinstall "Development Tools" -y
sudo yum install gcc openssl-devel bzip2-devel libffi-devel wget make -y

 

Step 2: Download and Extract Python 3.9

cd /usr/src
sudo wget https://www.python.org/ftp/python/3.9.18/Python-3.9.18.tgz
sudo tar xzf Python-3.9.18.tgz
cd Python-3.9.18

 

Step 3: Build and Install Python 3.9

sudo ./configure --enable-optimizations
sudo make altinstall

❗ Use make altinstall (not make install) to avoid overwriting the default python binary.

 

Step 4: Verify Installation

python3.9 --version

Now you can use python3.8 and python3.9 independently.

Tags CentOS7 Python3.8 Python3.9 Facebook X
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