Python installation

 

1. Download Python 3.10 Precompiled Binaries

Python releases come with precompiled binary installers for various platforms. On Windows or another Linux machine with internet access, you can download the Python 3.10 precompiled binaries.

Steps to Download Python 3.10 Binaries:

1. Go to the Official Python Downloads Page:
• Visit the Python 3.10 release page.
2. Download the Linux Binary:
• Python provides precompiled tarball binaries (.tar.xz) for Linux, which include all necessary files to run Python.
• Download the appropriate precompiled binary:
• For x86_64 architecture (64-bit), download:
  Python-3.10.0.tar.xz
3. Extract the Python Tarball: After downloading the tarball, extract it on your local machine (Windows or Linux):

bash

 

tar -xvf Python-3.10.0.tar.xz

4. Transfer the Extracted Python Files to EC2: Once you’ve extracted the Python files on your local machine, transfer the entire directory to the EC2 instance using SCP, WinSCP, or another file transfer tool.

Using SCP:

bash

 

scp -i your-key.pem Python-3.10.0/ user@ec2-instance-ip:/home/user/python310/

Using WinSCP:

• Open WinSCP, connect to your EC2 instance, and upload the extracted Python directory to /home/user/python310/.

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2. Download Precompiled Dependencies

Python has several key dependencies like zlib, openssl, libffi, and others that need to be installed for proper functionality. These libraries can also be downloaded as precompiled binaries and transferred to the EC2 instance.

Steps to Download Precompiled Dependencies:

1. Visit RPM Repositories: Use trusted RPM repositories like RPMFind or CentOS Vault to download the precompiled binaries for the following libraries:
• GCC (GNU Compiler Collection)
• zlib-devel
• openssl-devel
• libffi-devel
• bzip2-devel
• sqlite-devel
2. Download RPMs for Your EC2 Version:
• Make sure to download the correct version of these dependencies compatible with the Linux distribution running on your EC2 instance (e.g., Amazon Linux 2, Red Hat 8.x).

For example, you might search and download:

• gcc-<version>.rpm
• zlib-devel-<version>.rpm
• openssl-devel-<version>.rpm
• libffi-devel-<version>.rpm
• bzip2-devel-<version>.rpm
• sqlite-devel-<version>.rpm
2. Transfer the Dependencies to EC2: After downloading the RPM files, transfer them to the EC2 instance using SCP or WinSCP.

Using SCP:

bash

 

scp -i your-key.pem /path/to/rpms/*.rpm user@ec2-instance-ip:/home/user/rpms/

Using WinSCP:

• Connect to your EC2 instance via WinSCP and upload the RPM files to /home/user/rpms/.

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3. Install the Precompiled Python and Dependencies on EC2

Install Python:

Once you’ve transferred the Python precompiled files, you can set it up on the EC2 instance.

1. Extract Python on EC2: If you transferred a .tar.xz file (or the entire extracted folder), use the following commands to extract it on the EC2 instance:

bash

 

cd /home/user

tar -xvf Python-3.10.0.tar.xz

2. Make the Python Executable: Ensure that the Python binary is executable:

bash

 

chmod +x /home/user/python310/python

3. Set Up Python Environment: Set up the environment to use the Python binary:

bash

 

echo 'export PATH=/home/user/python310:$PATH' >> ~/.bashrc

source ~/.bashrc

4. Verify Python Installation: Run the following to verify Python:

bash

 

python3 --version

Install Dependencies:

Install the transferred dependencies using the RPM command.

1. Install RPM Packages: Navigate to the directory where you uploaded the RPM files and install them:

bash

 

cd /home/user/rpms

sudo rpm -ivh *.rpm

This command will install the necessary libraries such as zlib, openssl, libffi, etc.

2. Verify Dependencies: After installation, you can verify that the dependencies are properly installed:

bash

 

rpm -qi gcc

rpm -qi zlib-devel

rpm -qi openssl-devel

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4. Verify Python and Dependencies:

Once the Python binary and dependencies are installed, verify the setup:

1. Check Python Version:

bash

 

python3 --version

2. Check Installed Libraries: Ensure that libraries like openssl and zlib are available by testing with Python:

bash

 

python3 -c "import ssl; print(ssl.OPENSSL_VERSION)"

python3 -c "import zlib; print(zlib.ZLIB_VERSION)"