Thanks so much for taking time to consider what's going on here.
I am indeed trying to use the system python at C:\Python27, and this is where everything was pip-installed. Typing "import psychopy" into the system python does nothing (i.e. no errors) so that seems ok.
I did try to open psychopy in the way you suggest but in my system-python installed version of psychopy, within the "site-packages" folder, there is no folder with a .egg at the end. I have the following beginning with "psychopy...":
So I've tried the following from the "psychopy" folder (first one in the above list) and got the following error:
Traceback (most recent call last):
File "C:\Python27\Lib\site-packages\psychopy\app\psychopyApp.py", line 10, in <module>
from psychopy.app._psychopyApp import PsychoPyApp, __version__
File "C:\Python27\lib\site-packages\psychopy\app\_psychopyApp.py", line 33, in <module>
from . import projects
File "C:\Python27\lib\site-packages\psychopy\app\projects.py", line 17, in <module>
ImportError: No module named requests.exceptions
So, either I'm not running the correct version of psychopy, or there is something else wrong with the installation, I would guess.
I would really much prefer to use the standalone version of psychopy, as but as my original message shows, this is not working on my computer. I wonder if there is a way of tinkering with the standalone installation to get it to work (e.g. somehow replacing numpy with numpy-MKL), rather than going via manual install?