SQLAlchemy no password supplied error

Question

This is probably a silly error but I cannot seem to find a satisfying solution.

When running db.create_all(), I got the following error.

Answer 1

On your Mac, PostgreSQL was set up for trust or peer authentication for connections from localhost.

On your Ubuntu box it's set up for md5 authentication for connections from localhost.

You'll want to configure a password, or change the authentication mode. See pg_hba.conf, and the Ubuntu guide for PostgreSQL (there's a section about this error).