Detailed introduction on how to switch between multiple versions of Python on Mac

Mac comes with the Python2.x version. Sometimes you need to use the Python3.x version for development, but you cannot delete Python2.x, which may cause system instability. , then you need toinstallMultiple versions of Python. This article will introduce to you how to switch between multiple versions of Python on Mac. Friends who need it can take a look.

It comes with Mac For the Python2.x version, sometimes you need to use the Python3.x version for development, but you cannot delete Python2.x, which may cause system instability, so you need to install multiple versions of Python.

1. Install Python 3.x version, I installed 3.6.1;

2. Open the terminal and enter: sudo vi ~/.bashrc;

3. Enter and save at the top of the pop-up editing page:

alias python2='/Library/Frameworks/Python.framework/Versions/2.x/bin/python2.x'
alias python3='/Library/Frameworks/Python.framework/Versions/3.x/bin/python3.x'

I have Python2.7 and Python3.6 versions on my machine. Please replace the x above according to the situation.

4. Restart the terminal (terminal) or enter: source ~/.bashrc

5. Verify, enter python2 in the terminal (terminal) to represent the Python2.x version, enter python3 Represents the Python3.x version.

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