import psycopg2,traceback           
try:           
 c=psycopg2.connect(host="localhost",dbname="COMUN",user="postgres",password="Visual2021")           
 cur=c.cursor()           
 cur.execute("select schemaname,tablename from pg_tables order by 1,2")           
 [print(r) for r in cur.fetchall()]           
except Exception as e: print(e)