When I was adding a library to give to heroku, psycopg2 stuck and I got an error with Pipfile lock, so it was a problem
item | version |
---|---|
os | Ubuntu18.04LTS |
python | 3.7 |
pipenv | version 2018.11.26 |
*** It has not been investigated why it worked, so it is for reference only. *** ***
$ sudo apt upgrade
$ sudo apt install postgresql postgresql-contrib
that's all! !! !! (Why? Wakaranainotemokimochiwarui ....)