сделал загатовку, откуда сделаем старт микро-игры

modules/DB.py

@@ -0,0 +1,18 @@
+from pymongo import MongoClient
+
+
+class UseDB:
+    def __init__(self, collection_name):
+        self.series_collection = None
+        self.client = MongoClient('localhost', 27017)
+        self.db = self.client['stepik']
+        self.series_collection = self.db[collection_name]
+
+    def find_document(self, elements):
+        return [x for x in self.series_collection.find(elements)]
+
+    def insert_document(self, data):
+        return self.series_collection.insert_one(data).inserted_id
+
+    def update_document(self, query_elements, new_values):
+        self.series_collection.update_one(query_elements, {'$set': new_values})