Python interpreter/virtual env configuration

Configuration of the python virtual env and interpreter, done as it should be, doesn't result in the recognition of the modules and dependencies installed to the virtual env. With activating the virtual env and listing the installed packages directly from cmd, you can see the installed modules, as well as from the IntelliJ terminal, after initializing the project virtual env. The problem is that fore unknown reason no python file can be executed with the run button, and references to packages in the code are unresolved. In addition, the configuration of the interpreter and virtual env seem to be correct, by looking at the project structure window, that shows to correct path to the interpreter, and the correct list of installed packages.