How to Specify a Python Version to Run?

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You can specify a specific version of Python to run a script or execute a command using the command line or shebang line in your script.

  1. Using command line:

To specify a Python version from the command line, you can simply type the full path of the Python executable followed by the script or command you want to run. For example, to run a script using Python 3.8:

  1. Using shebang line:

You can also specify the Python version in the shebang line at the beginning of your Python script. The shebang line specifies the interpreter that should be used to run the script. For example, to specify that the script should be run using Python 3.8, add the following line to the beginning of your script:

#!/usr/bin/env python3.8

This tells the operating system to use the python3.8 interpreter to run the script.

If the version of Python you want to use is not installed on your system, you can download and install it from the Python website or use a package manager like apt-get or yum on Linux systems, or Homebrew on macOS.

Note that it’s generally a good practice to specify the version of Python that your code was developed and tested on to ensure compatibility and avoid potential issues.

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