problems using python in PowerShell

[Chris Angelico]

On Sat, Oct 31, 2015 at 1:53 AM, josephine ewers via Python-list
<python-list at python.org> wrote:
> Hi,
> I am doing an online training course to learn python but when I enter
> 'python' in Microsoft PowerShell as I am supposed to do I always get an
> error message.

What error message, exactly?

Is Python installed? Which Python is installed? What OS are you
running? What is your $PATH (or %PATH%)? We can't help you with no
information.

ChrisA