Why is Python deleting every time

[Terry Reedy]

On 10/1/2020 7:29 AM, Sai Shubham Ray wrote:
> Sometimes when I try to run python program it says that python is not
> installed and I have to repair it.

Because you are running the Python installer instead of Python itself 
after having it installed.

> Thank god there is a repair option in
> python but still do something to get rid of this problem

Delete the Python installer and you cannot run it. If you ever do need 
to repair, you can redownload.  Or rename the installation program (if 
you can) to something like 'Install Python x.y'.

-- 
Terry Jan Reedy