Update README.md

README.md

@@ -1,13 +1,14 @@
 ## sqlite3 [25-03-17]
 ```py
+import sqlite3, os, json
 class SQL:
     def __init__(sql, db='.db'):
-        import sqlite3, os; sql.db = db
         if not os.path.exists(db): os.makedirs(db); SQL(db).con.executescript(
             "PRAGMA journal_mode=WAL; CREATE TABLE kv(k,v,t DEFAULT CURRENT_TIMESTAMP);"
             "CREATE INDEX idx_kv_v ON kv(v); CREATE INDEX idx_kv_k_t ON kv(k,t DESC);")
         (con := sqlite3.connect(f'{db}/sql', check_same_thread=False,
-            isolation_level=None)).execute(f"PRAGMA busy_timeout={1e9}"); sql.con = con
+            isolation_level=None)).execute(f"PRAGMA busy_timeout={1e9}")
+        sql.con, sql.db = con, db
     def __call__(sql, q, *p): return [*sql.con.execute(q, p)]
     def __setitem__(sql, k, v): import json; return sql("INSERT INTO kv(k,v) VALUES(?,?)",
         k, v if type(v) is bytes else json.dumps(v, ensure_ascii=False))