diff --git a/app/db/clear_users.py b/app/db/clear_users.py
index 63f7a1d2..3d38fa8f 100644
--- a/app/db/clear_users.py
+++ b/app/db/clear_users.py
@@ -1,6 +1,6 @@
 import logging
 
-from .db_methods import client
+from .db_main import client
 
 logger = logging.getLogger('root_logger')
 
diff --git a/app/db/db_methods.py b/app/db/db_main.py
similarity index 100%
rename from app/db/db_methods.py
rename to app/db/db_main.py
diff --git a/app/db/db_types.py b/app/db/db_types.py
deleted file mode 100644
index 3379462a..00000000
--- a/app/db/db_types.py
+++ /dev/null
@@ -1,10 +0,0 @@
-
-
-
-
-
-
-# You shouldn't create or change this explicitly
-
-
-
diff --git a/app/db/methods/celery_check.py b/app/db/methods/celery_check.py
index 27ca63f8..67314a01 100644
--- a/app/db/methods/celery_check.py
+++ b/app/db/methods/celery_check.py
@@ -1,13 +1,9 @@
 from datetime import datetime
 
-from app.db.db_methods import get_celery_check_collection
-from app.db.methods.client import get_client, get_db, get_fs
+from app.db.db_main import get_celery_check_collection
+from app.db.methods.client import get_db
 
-from app.db.types.Logs import Logs
-
-# client = get_client()
 db = get_db()
-# fs = get_fs()
 
 celery_check_collection = get_celery_check_collection()  # collection for mapping celery_task to check
 
diff --git a/app/db/methods/check.py b/app/db/methods/check.py
index 2dbc1cca..ed5abeb9 100644
--- a/app/db/methods/check.py
+++ b/app/db/methods/check.py
@@ -1,14 +1,13 @@
-from gridfs import GridFSBucket, NoFile
+from gridfs import NoFile
 from datetime import datetime
 
 import pymongo
 
-from app.db.db_methods import get_checks_collection, get_users_collection, get_files_info_collection
-from app.db.methods.client import get_client, get_db, get_fs
+from app.db.db_main import get_checks_collection, get_users_collection, get_files_info_collection
+from app.db.methods.client import get_db, get_fs
 from app.db.types.Check import Check
 
 
-# client = get_client()
 db = get_db()
 fs = get_fs()
 
@@ -18,9 +17,6 @@
 files_info_collection = get_files_info_collection()
 
 
-
-
-
 def add_check(file_id, check):
     checks_id = checks_collection.insert_one(check.pack()).inserted_id
     files_info_collection.update_one({'_id': file_id}, {"$push": {'checks': checks_id}})
@@ -134,7 +130,6 @@ def get_checks_cursor(filter={}, limit=10, offset=0, sort=None, order=None):
 # get logs cursor with specified parameters
 
 
-
 def get_user_checks(login):
     return checks_collection.find({'user': login})
 
diff --git a/app/db/methods/criteria_pack.py b/app/db/methods/criteria_pack.py
index 5c603d67..0fc42e81 100644
--- a/app/db/methods/criteria_pack.py
+++ b/app/db/methods/criteria_pack.py
@@ -1,11 +1,9 @@
 from datetime import datetime
 
-from app.db.db_methods import get_criteria_pack_collection
-from app.db.methods.client import get_client, get_db, get_fs
+from app.db.db_main import get_criteria_pack_collection
+from app.db.methods.client import get_db, get_fs
 
-# from app.db.types. import Logs
 
-# client = get_client()
 db = get_db()
 fs = get_fs()
 
diff --git a/app/db/methods/edit_user.py b/app/db/methods/edit_user.py
index d123ed31..8a432cbe 100644
--- a/app/db/methods/edit_user.py
+++ b/app/db/methods/edit_user.py
@@ -1,4 +1,4 @@
-from app.db.db_methods import users_collection
+from app.db.db_main import users_collection
 
 
 def edit_user(user):
diff --git a/app/db/methods/file.py b/app/db/methods/file.py
index 8e0941f8..63bb2109 100644
--- a/app/db/methods/file.py
+++ b/app/db/methods/file.py
@@ -1,4 +1,4 @@
-from app.db.db_methods import get_files_info_collection, get_users_collection
+from app.db.db_main import get_files_info_collection, get_users_collection
 from app.db.methods.client import get_client, get_db, get_fs
 from os.path import basename
 from bson import ObjectId
diff --git a/app/db/methods/log.py b/app/db/methods/log.py
index 0b0e4b1c..ccf476b2 100644
--- a/app/db/methods/log.py
+++ b/app/db/methods/log.py
@@ -1,13 +1,11 @@
 import pymongo
 
-from app.db.db_methods import get_logs_collection
-from app.db.methods.client import get_client, get_db, get_fs
+from app.db.db_main import get_logs_collection
+from app.db.methods.client import get_db
 
 from app.db.types.Logs import Logs
 
-# client = get_client()
 db = get_db()
-# fs = get_fs()
 
 logs_collection = get_logs_collection()
 
diff --git a/app/db/methods/user.py b/app/db/methods/user.py
index 4b206468..3af14b4b 100644
--- a/app/db/methods/user.py
+++ b/app/db/methods/user.py
@@ -1,15 +1,12 @@
 import pymongo
 
-from app.db.db_methods import get_users_collection
+from app.db.db_main import get_users_collection
 from app.db.methods.client import get_db
 from app.db.types.User import User
 
 from app.db.methods.file import delete_presentation
 
-
-# client = get_client()
 db = get_db()
-# fs = get_fs()
 
 users_collection = get_users_collection()
 
diff --git a/app/db/types/ConsumerDBManager.py b/app/db/types/ConsumerDBManager.py
index dbbee284..f1f3b01d 100644
--- a/app/db/types/ConsumerDBManager.py
+++ b/app/db/types/ConsumerDBManager.py
@@ -1,9 +1,8 @@
-from app.db.methods.client import get_client, get_db, get_fs
+from app.db.methods.client import get_db, get_fs
 
 
 from app.db.types.Consumers import Consumers
 
-# client = get_client()
 db = get_db()
 fs = get_fs()
 
diff --git a/app/routes/check_list.py b/app/routes/check_list.py
index 6e6aeb7e..3604eb78 100644
--- a/app/routes/check_list.py
+++ b/app/routes/check_list.py
@@ -1,7 +1,7 @@
 from flask import Blueprint, render_template, jsonify, request
 
 from app.utils import format_check_for_table, checklist_filter
-from app.db import db_methods
+from app.db import db_main
 from app.db.methods import check as check_methods
 
 from flask_login import login_required, current_user
diff --git a/app/routes/checks.py b/app/routes/checks.py
index 8d1c7c34..c9b42266 100644
--- a/app/routes/checks.py
+++ b/app/routes/checks.py
@@ -4,7 +4,7 @@
 from flask import Blueprint, render_template, Response
 from flask_login import login_required
 
-from app.db import db_methods
+from app.db import db_main
 from app.db.methods import file as file_methods
 from app.root_logger import get_root_logger
 
diff --git a/app/routes/get_last_check_results.py b/app/routes/get_last_check_results.py
index 42d6a886..3e0ce1cd 100644
--- a/app/routes/get_last_check_results.py
+++ b/app/routes/get_last_check_results.py
@@ -4,7 +4,7 @@
 from flask import Blueprint, render_template, redirect, url_for
 from flask_login import login_required
 
-from app.db import db_methods
+from app.db import db_main
 from app.root_logger import get_root_logger
 
 
diff --git a/app/routes/get_pdf.py b/app/routes/get_pdf.py
index ef9d5180..b063d89c 100644
--- a/app/routes/get_pdf.py
+++ b/app/routes/get_pdf.py
@@ -4,7 +4,7 @@
 from flask import Blueprint, Response, render_template
 from flask_login import login_required
 
-from app.db import db_methods
+from app.db import db_main
 from app.db.methods import file as file_methods
 
 from app.root_logger import get_root_logger
diff --git a/app/routes/get_zip.py b/app/routes/get_zip.py
index 443e8bf1..bfc186d0 100644
--- a/app/routes/get_zip.py
+++ b/app/routes/get_zip.py
@@ -9,7 +9,7 @@
 from flask import Blueprint, abort, request, Response
 from flask_login import login_required, current_user
 
-from app.db import db_methods
+from app.db import db_main
 from app.db.methods import file as file_methods
 from app.db.methods import check as check_methods
 
diff --git a/app/routes/logs.py b/app/routes/logs.py
index 9e4688b4..674712cb 100644
--- a/app/routes/logs.py
+++ b/app/routes/logs.py
@@ -4,14 +4,10 @@
 from app.root_logger import get_root_logger
 from datetime import datetime, timedelta
 from app.db.methods.log import get_logs_cursor
-# from app.server_consts import logger
 logs = Blueprint('logs', __name__, template_folder='templates', static_folder='static')
 logger = get_root_logger('web')
 
 
-# def get_logger():
-#     return logger
-
 @logs.route("/")
 @login_required
 def logs_main():
diff --git a/app/tasks.py b/app/tasks.py
index c4554b6b..b94438bf 100644
--- a/app/tasks.py
+++ b/app/tasks.py
@@ -6,7 +6,7 @@
 from celery.signals import worker_ready
 
 from passback_grades import run_passback
-from db import db_methods
+from db import db_main
 from db.types.Check import Check
 from main.checker import check
 from main.parser import parse