Just a little fact that I learnt today and that I found satisfying. Do bare-in-mind that I am a self-declared python novice (as you will see).
I wanted to get a bit more familiar with python. I can’t remember the exact situation, I think it might have been one of the daily-programmer challenges or else something to do with python-flasks and k8s.
I was on win10 with with the Windows Subsystem for Linux/Ubuntu.
[email protected]:~$ python The program 'python' can be found in the following packages: * python-minimal * python3 Try: sudo apt install <selected package> [email protected]:~$ sudo apt install python3 [sudo] password for peter: Reading package lists... Done Building dependency tree Reading state information... Done python3 is already the newest version (3.5.1-3). 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. [email protected]:~$ sudo apt-get update #huge apt-get output snipped [email protected]:~$ sudo apt-get upgrade #huge apt-get output snipped [email protected]:~$ python The program 'python' can be found in the following packages: * python-minimal * python3 Try: sudo apt install <selected package> [email protected]:~$ python3 Python 3.5.2 (default, Nov 23 2017, 16:37:01) [GCC 5.4.0 20160609] on linux Type "help", "copyright", "credits" or "license" for more information. >>> exit()
I was a little confused. Why was
python not being installed? Why did I need to use the command
I did a little googling, and came across some SO pages. In particular this one How can I make the python command in terminal run python3 instead of python2, which pointed to PEP 394.
It turns out it is a bona-fide python convention that
python can never invoke python3. I just needed to understand even without python2 on a machine, that there are still semantic differences between
So- I should just accept that running
python3 to start python is fine :D