修正

list_accounts.py

@@ -0,0 +1,10 @@
+#!/usr/bin/env python3
+import psycopg
+
+conn = psycopg.connect('host=localhost user=postgres password=postgres dbname=accounting')
+cur = conn.cursor()
+cur.execute('SELECT account_code, account_name FROM accounts WHERE is_active=true ORDER BY account_code')
+for row in cur.fetchall():
+    print(f'{row[0]:3s} {row[1]}')
+cur.close()
+conn.close()