ext/python: Update example

bindings/python/example.py

@@ -1,6 +1,35 @@
 import limbo
 
-con = limbo.connect("sqlite.db")
-cur = con.cursor()
-res = cur.execute("SELECT * FROM users")
-print(res.fetchone())
+# Use the context manager to automatically close the connection
+with limbo.connect("sqlite.db") as con:
+    cur = con.cursor()
+    cur.execute("""
+            CREATE TABLE IF NOT EXISTS users (
+                id INTEGER PRIMARY KEY AUTOINCREMENT,
+                username TEXT NOT NULL,
+                email TEXT NOT NULL,
+                role TEXT NOT NULL,
+                created_at DATETIME NOT NULL DEFAULT (datetime('now'))
+            )
+        """)
+
+    # Insert some sample data
+    sample_users = [
+         ("alice", "alice@example.com", "admin"),
+         ("bob", "bob@example.com", "user"),
+         ("charlie", "charlie@example.com", "moderator"),
+         ("diana", "diana@example.com", "user")
+     ]
+    for username, email, role in sample_users:
+         cur.execute("""
+             INSERT INTO users (username, email, role)
+             VALUES (?, ?, ?)
+         """, (username, email, role))
+
+    # Use commit to ensure the data is saved
+    con.commit()
+
+    # Query the table
+    res = cur.execute("SELECT * FROM users")
+    record = res.fetchone()
+    print(record)