When I run Gspread with Python3, I get this error:

ImportError: No module named 'gspread'

When I run with just Python, I get no errors. I installed gspread with pip install gspread --user. I really need to use Python 3, and I expect I should be able to, but I just did something wrong.
Make sure you are using the correct interpreter.
You may have one or more python interpreters installed so it may be installing to a different one.
Python 3 and Gspread ImportError