How to set python2 as my default?


 
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Old 05-14-2019
How to set python2 as my default?

I am trying to figure out how to use update-alternatives to temporally set python2 as my default python interpreter. Currently, using the command:


Code:
sudo update-alternatives --config python

reports:


Code:
There is only one alternative in link group python (providing /usr/bin/python): /usr/bin/python3
Nothing to configure.

However, I do have python2 and python3 installed and working:


Code:
rob@linux044:~$ python
Python 3.6.7 (default, Oct 22 2018, 11:32:17) 
[GCC 8.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> exit()
rob@linux044:~$ python2
Python 2.7.15rc1 (default, Nov 12 2018, 14:31:15) 
[GCC 7.3.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> exit()

Any idea how I could use update-alternatives to temporary set python2 as the default python interpreter? I was thinking:

Code:
sudo update-alternatives --install /usr/bin/python python3 /usr/bin/python2

or something similar should work but I am not sure and I dont want to attempt it and screw everything up.
 
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