Update sqlite3-python/README.md

sqlite3-python/README.md

@@ -1,10 +1,12 @@
 # Simple
 ```python
-import sqlite3
-conn = sqlite3.connect('db.sqlite', isolation_level=None)
-conn.row_factory = lambda *args: dict(sqlite3.Row(*args))
-sql = lambda *args: list(conn.execute(*args))
-sql('PRAGMA journal_mode=WAL')
+def SQL():
+    import sqlite3
+    conn = sqlite3.connect('db.sqlite', isolation_level=None)
+    conn.execute('PRAGMA journal_mode=WAL')
+    conn.row_factory = sqlite3.Row
+    return lambda *args: [dict(row) for row in conn.execute(*args)]
+sql = SQL()
 ```
 # Class
 ```python