Unable to generate a SQL file

[BakulTessell]

I just want to generate the SQL files from XML.
Is that possible?
I ran the below command.

$ python3 load_into_pg.py -t Badges  -f Badges.xml
This will drop the Badges table. Are you sure [y/n]?y
Error in dealing with the database.
pg.Error (None): None
could not connect to server: No such file or directory
	Is the server running locally and accepting
	connections on Unix domain socket "/var/run/postgresql/.s.PGSQL.5432"?