Q:

ModuleNotFoundError for psychopy

I’m new to Python and Psychopy. I’ve tried running the following:
print("foo")
from psychopy import visual, core, gui, event
print("bar")

Both from the command line and inside the Spyder IDE, I get the following error:
Traceback (most recent call last):
  File "test.py", line 2, in <module>
    from psychopy import visual, core, gui, event
ModuleNotFoundError: No module named 'psychopy'

System specs: macOS High Sierra v.10.13.4, Macbook Air
Python version: Python 3.7.1 (python -V)
I’ve installed the following dependencies: wxPython, pyo, and the ones in the following code:
pip install numpy scipy matplotlib pandas pyopengl pyglet pillow 
moviepy lxml openpyxl xlrd configobj pyyaml gevent greenlet 
msgpack-python psutil tables requests[security] pyosf cffi 
pysoundcard pysoundfile seaborn psychopy_ext python-bidi psychopy
pip install pyserial pyparallel egi iolabs
pip install pytest coverage sphinx

pip install pyobjc-core pyobjc-framework-Quartz

I also tried using pip3.  iolabs was not able to install but the link below seems to state it is optional.
All from this resource. It seemed to run without a hitch (aside from some that didn’t like Spyder, but I ran it on the command line as well as Spyder, so that shouldn’t be a problem).
Any suggestions?

A:

It's better to create a virtual environment. 
Can you try the following command lines in your terminal?:
conda create -n psychopy  python=3.6  anaconda # it creates a virtual env named psychopy
source activate psychopy # it activates this virtual environment
pip install psychopy # it installs psychopy lib in the virtual environment. 
Then, to try the used-case here again, type: 
python # it opens python 
>>> from psychopy import visual, core, gui, event
It should work. 

