Just starting out, allready stuck..

[snippsat]

Look at this Python 3.6 and pip installation under Windows, part-2
It's important to install correct so python and pip is in environment variable Path of Windows.
Here a run with cmd from start,i have this hello.py in folder C:\foo

print('hello world')

Start cmd nothing is hided all from start.

Microsoft Windows [Version 10.0.15063]
(c) 2017 Microsoft Corporation. Med enerett.

C:\Windows\System32>cd\

C:\>cd foo

C:\foo>python hello.py
hello world

C:\foo>python
Python 3.6.2 (v3.6.2:5fd33b5, Jul  8 2017, 04:14:34) [MSC v.1900 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> 2 + 4
6
>>> print('Now in interactive interpreter')
Now in interactive interpreter
>>> exit()

C:\foo>pip -V
pip 9.0.1 from c:\python36\lib\site-packages (python 3.6)

C:\foo>

This most work,if not follow install in link first.