How Can I Run Multiple Python Versions Simultaneously on Linux?

Running Multiple Python Versions Simultaneously

Python's flexibility allows for the coexistence of multiple versions on the same machine. However, there is no official documentation on this topic.

OS Independence

The approach for installing and running multiple Python versions is largely dependent on the operating system. This response focuses on Linux systems.

Managing Versions

To install multiple Python versions, simply install each version as needed. The executable files for installed versions will be found under /usr/bin/pythonX.Y. To specify the default Python version, use the following command:

$ sudo ln -s /usr/bin/pythonX.Y /usr/bin/python

Library Management

Python libraries are isolated into version-specific directories, ensuring coexistence without conflicts.

Manual Compilation

If compiling Python manually, refer to the Python source code readme provided in the response. Instructions on handling multiple versions are included under "Installing Multiple Versions."

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