how to update python 2 7 to 3 7 in mac

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updating python 2.7 to python 3.7 on a mac involves a few steps to ensure a smooth transition. python 2.7 is the default python version on macos, but python 3.x versions offer many improvements and new features. here's a step-by-step tutorial on how to update python on your mac from version 2.7 to 3.7:
homebrew is a package manager for macos that simplifies the process of installing software. if you haven't installed homebrew yet, you can do so by running the following command in terminal:
once homebrew is installed, you can use it to install python 3.7. open terminal and run the following command:
after the installation is complete, you can verify that python 3.7 is installed correctly by running the following commands:
this should display the version number of python 3.7 installed on your system.
by default, macos still uses python 2.7 as the primary python interpreter. to make python 3.7 the default, you can add it to your path variable. add the following line to your shell profile file (e.g., ~/.bash_profile, ~/.bashrc, or ~/.zshrc):
then, source your shell profile to apply the changes:
to ensure that python 3.7 is now the default python interpreter, run the following command:
this should display the version number of python 3.7.
python 3.7 comes with its own version of pip. to ensure you're using the pip associated with python 3.7, you can run:
this will update pip to the latest version for python 3.7.
before completely removing python 2.7, you might want to check if any installed applications or scripts depend on it. you can do this by running:
this will list any packages installed via homebrew that depend on python.
once you've verified that python 3.7 is working correctly and that your system no longer depends on python 2.7, you can optionally remove python 2.7. however, it's advisable to proceed with caution and ensure no critical system components rely on python 2.7.
congratulations! you have successfully updated python from version 2.7 to 3.7 on your mac. ...

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