Preliminary SQLite database implementation

utilities/database/database.py

@@ -2,10 +2,13 @@ class Database():
     def __init__(self):
         pass
 
-    def query(self, query: str, parameters: list=None) -> tuple[int, list[dict]]:
+    def close(self):
         pass
 
-    def select(self, table: str, columns: list[str]=None, where: list[dict]=None) -> list[dict]:
+    def query(self, query: str, parameters: list=None) -> tuple[int, list[tuple]]:
+        pass
+
+    def select(self, table: str, columns: list[str]=None, where: list[dict]=None) -> list[tuple]:
         query_string = "SELECT {columns} FROM {table}{where}".format(
             columns = "*" if columns is None else ",".join(columns),
             table = table,

utilities/database/sqlite.py

@@ -0,0 +1,25 @@
+from database import Database
+import sqlite3
+
+class SQLite(Database):
+    def __init__(self, db_name: str):
+        super(self, Database).__init__()
+
+        self.db = sqlite3.connect(db_name)
+
+    def close(self):
+        self.db.close()
+
+    def query(self, query: str, parameters: list=None) -> tuple[int, list[tuple]]:
+        if parameters is None:
+            cursor = self.db.execute(query)
+        else:
+            cursor = self.db.execute(query, parameters)
+
+        if query.casefold().startswith("SELECT".casefold()):
+            rows = list(cursor)
+
+            return (len(rows), rows)
+        else:
+            return (cursor.rowcount, None)
+