Regarding Python

[Muneer Malla]

Dear All 
hope you all are fine and doing good in these critical conditions
While I am need to Python 
And I a generally using it in running a software QIIME
in virtual machine (Linux based).
I need to install python 3.7 or above version, however the previously installed version is python2.7
I tried many commands 
sudo apt-get install python3.8
after running the command it fails 
I removed pthon 2.7 
but again when I run the command 
Python --version 
it again shows python 2.7
please suggest the commands 
I have my python version 3.8 downloaded in the download folder