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Python Using Databases in Python Meet Peewee Modeling

Why does the script throw a fatal OperationalError when I try to create the database in PostgreSQL?

When attempting to create the database with my local instance of PostgreSQL, I had to make a few changes to the db variable (since PostgreSQL doesn't like being passed .db files as database names):

db = PostgresqlDatabase("students",

Even after doing this, I am greeted with the following error:

peewee.OperationalError: FATAL:  database "students" does not exist

How do I make the script create the database?

3 Answers

Unfortunately, PostgreSQL will not allow you to create the database. Instead, you will need to create the database ahead of time.

Kenneth Love
Kenneth Love
Treehouse Guest Teacher

Yeah, I think SQLite is the only database engine that doesn't require the database to exist beforehand.

Randolph Judy
Randolph Judy
Courses Plus Student 28,198 Points

I had the same problem with MySQL and creating the Students Schema before running the script resolved this error. My code was the same except for using 'MySQLDatabase()'. I verified the table creation in the MySQL Workbench.