change python version raspberry pi
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title: how to change python version on raspberry pi
introduction:
raspberry pi is a versatile single-board computer popular among hobbyists, educators, and professionals alike. it often comes pre-installed with python, a powerful programming language widely used for various purposes. however, there might be occasions when you need to switch between different python versions to support specific libraries or applications. in this tutorial, you'll learn how to change the python version on your raspberry pi with step-by-step instructions and code examples.
prerequisites:
steps to change python version:
step 1: check installed python versions
before changing the python version, it's essential to know which versions are currently installed on your raspberry pi. open the terminal and type the following command:
this command will list all installed python executables. you'll typically see outputs like python2 for python 2.x versions and python3 for python 3.x versions.
step 2: install the desired python version (if necessary)
if the version you want to switch to is not installed, you can use the package manager apt to install it. for example, to install python 3.8, you can run:
replace python3.8 with the desired version number.
step 3: change the default python version
to change the default python version used by the system, you can use the update-alternatives command. first, list the available python alternatives:
this command will list the available python versions along with their paths. then, select the desired version using the update-alternatives command:
you'll be prompted to select the python version from the list of alternatives.
step 4: verify the python version
after changing the default python version, it's crucial to verify that the change has been applied successfully. you can do this by running the following commands:
this will display the currently active python version.
this will display the version of python 3 if available.
conclusion:
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