SELECT schema_name

FROM information_schema.schemata;

\dn

# list the schemas

import psycopg2

​

# Connect to the database

conn = psycopg2.connect(

    host="your_host",

    database="your_database",

    user="your_user",

    password="your_password"

)

​

# Create a cursor object

cur = conn.cursor()

​

# Execute the query to get the list of schemas

cur.execute("SELECT schema_name FROM information_schema.schemata")

​

# Fetch all the rows from the result set

schemas = cur.fetchall()

​

# Print the list of schemas

for schema in schemas:

    print(schema[0])

​

# Close the cursor and connection

cur.close()

conn.close()