Psycopg2 is not installed from requirements.txt, what should I do?

Question

Django

Please tell me how to deal with this? only to Unix systems to pass?
they gave me an educational test project, there is no doubt that it is working, I try to run it at home, I did everything as it should - a virtual environment and so on, I put all the packages from the requirements file in turn, but there is always some kind of mismatch with the psycopg2 package, then he does not see the pg_config file, now in the virtual environment, and even without it, such a crap gets out, who came across what the question might be?