On PyCharm check if you have an active Interpreter: File> Settings> Project: "Project Name"> Python Interpreter
If your Python Interpreter is than choose one. Your best choice would be the one: /usr/bin/python3.x
On Atom you have to create your Virtual Environment. For this:
$ python -m venv ./venv
$ cd venv/Scripts
$ venv\Scripts> activate
You can check if it worked by typing:
$ where Python
You should see you working directory.