Delete sqlite3/db.py

sqlite3/db.py

@@ -1,61 +0,0 @@
-import sqlite3, json
-
-class DB(sqlite3.Connection):
-    def __init__(self, db_name="db.sqlite"):
-        super().__init__(db_name)
-        with self:
-            self.execute('''
-                CREATE TABLE IF NOT EXISTS kv_store
-                (key TEXT PRIMARY KEY, value BLOB)
-            ''')
-
-    def __setitem__(self, key, value):
-        if not isinstance(value, bytes): value = json.dumps(value)
-        with self:
-            cur = self.execute('''
-                INSERT OR REPLACE INTO kv_store
-                (key, value) VALUES (?, ?)
-            ''', (key, value))
-            return {"modified_count": cur.rowcount}
-
-    def __getitem__(self, key):
-        with self:
-            result = self.execute('''
-                SELECT value FROM kv_store
-                WHERE key = ?
-            ''', (key,)).fetchone()
-        if result:
-            if isinstance(result[0], str):
-                try: return json.loads(result[0])
-                except json.JSONDecodeError: pass
-            return result[0]
-
-    def delete(self, key):
-        with self:
-            cur = self.execute('''
-                DELETE FROM kv_store 
-                WHERE key = ?
-            ''', (key,))
-            return {"deleted_count": cur.rowcount}
-
-    def keys(self, pattern='*'):
-        pattern = pattern.translate(str.maketrans({
-            '\\': '\\\\', '%': '\\%', '_': '\\_', '*': '%', '?': '_'
-        }))
-        with self:
-            result = self.execute('''
-                SELECT key FROM kv_store
-                WHERE key LIKE ? ESCAPE '\\'
-            ''', (pattern,)).fetchall()
-        return [row[0] for row in result]
-
-    def __repr__(self): return repr(self.keys())
-
-    def exists(self, key):
-        with self:
-            cur = self.execute('''
-                SELECT 1 FROM kv_store
-                WHERE key = ?
-                LIMIT 1
-            ''', (key,))
-            return bool(cur.fetchone())