python2 and python3 are the most popular python versions which generally exist in our computers at the same time . However, as we know, they are incompatible at some time, even with different syntax. For example, you need to use “print()” to print your strings for python3; what’s more, python3 uses utf-8 as default encoding format so you can denote your codes in Chinese but don’t need to specify the utf-8 encoding.
Since the python(2) and python3 projects might exist in our computer at the same time, so mostly we cannot remove one of python version. Here is a simple way to switch your python version between python(2) and python3 on Mac.
Steps:
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new/edit ~/.bashrc, add the following line in:
alias python="python3" -
Option
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You can use the following way to make it effective in time for the current terminal
source ~/.bashrc -
You can also use the following way to make it effective for all the terminals
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new/edit ~/.bash_profile, add the following line in:
source ~/.bashrc
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