python install from source code
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Installing Python from source code can be useful in situations where pre-built binaries are not available or when you want to customize the installation to meet specific requirements. This tutorial will guide you through the process of installing Python from source on a Unix-based system. Please note that the steps may vary slightly depending on your operating system.
Before you begin, ensure that you have the necessary development tools and libraries installed on your system. The following packages are commonly required:
Build essentials: On Debian/Ubuntu-based systems, you can install them with:
Development libraries: Ensure you have necessary libraries installed. For example, on Debian/Ubuntu:
Visit the Python official website and download the source code for the version you want to install.
Run the configure script to prepare the build. This step checks for dependencies and sets up the build configuration.
The --enable-optimizations flag enables additional compiler optimizations for a better-performing Python build.
Compile and install Python using the following commands:
The -j$(nproc) flag utilizes multiple processors for faster compilation. The make altinstall command ensures that the new Python version is installed alongside the system's default Python, avoiding potential conflicts.
Check that the installation was successful by running:
Replace X.Y with the Python version you installed. This command should display the installed Python version.
To make your new Python version the default, update your PATH variable. Add the following line to your shell profile file (e.g., ~/.bashrc, ~/.zshrc):
Reload your shell or run source ~/.bashrc (or the appropriate file for your shell) to apply the changes.
Congratulations! You have successfully installed Python from source code. You can now use the latest Python version with your customized configuration.
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