Update playwright/README.md

playwright/README.md

@@ -42,11 +42,11 @@ if __name__ == "__main__":
 
 ```python
 # db.py
-import sqlite3, json 
+import sqlite3, json, os
 
 class DB(sqlite3.Connection):
     def __init__(self, db_name=".db.sqlite"):
-        super().__init__(db_name)
+        super().__init__(os.path.expanduser(db_name))
         with self:
             self.execute('''
                 CREATE TABLE IF NOT EXISTS kv_store
@@ -105,7 +105,7 @@ class DB(sqlite3.Connection):
 
 
 if __name__ == "__main__":
-    db = DB()
+    db = DB('~/db.sqlite')
 
     # 문자열 저장 및 조회
     db["hello"] = "world"