start to learn Python

[Berliner]

Hi, all. Some time passed but it seems to me that I need python at visual studio
I installed again python:
- I do not see python ay PATH
-At cmd I got this

Error:
C:\>python -V
Python
C:\>pip -V
'pip' is not recognized as an internal or external command,
operable program or batch file.

I think pip does not work correct

- At visual studio I got

Error:
Install the latest PowerShell for new features and improvements! https://aka.ms/PSWindows

PS C:\Users\Viktor\Desktop\Python>

I think the VS can not find python

Could you explain me what is wrong, please
How I can fix it