diff --git a/.flake8 b/.flake8
index 7c36ff61a5c..280d141fb5d 100644
--- a/.flake8
+++ b/.flake8
@@ -1,5 +1,14 @@
 [flake8]
 max-line-length = 120
-select=E901,E999,F821,F822,F823,I100,I101,I201,I202,T001,T002,T003,T004
-ignore=E203,W503,C0330
-application-import-names=tribler,run_tribler
+extend-ignore =
+  I202, # Additional newline in a group of imports
+  E127, # continuation line over-indented for visual indent
+  E128, # continuation line under-indented for visual indent
+  E131, # continuation line unaligned for hanging indent
+  F722, # syntax error in forward annotation '20s'
+  E731, # do not assign a lambda expression, use a def
+  F401, # Pylint-checked, module imported but unused
+  F841, # Pylint-checked, local variable is assigned to but never used
+  E722, # Pylint-checked, do not use bare 'except'
+  E501 # Pylint-checked, line too long
+import-order-style=pycharm
diff --git a/.isort.cfg b/.isort.cfg
deleted file mode 100644
index 41aa578c58e..00000000000
--- a/.isort.cfg
+++ /dev/null
@@ -1,13 +0,0 @@
-[settings]
-order_by_type = False
-multi_line_output=3
-case_sensitive = True
-include_trailing_comma=True
-force_grid_wrap=0
-use_parentheses = True
-combine_as_imports=True
-force_sort_within_sections=True
-line_length=120
-known_future_library=future
-known_first_party=tribler,run_tribler
-known_third_party=pony,twisted,six,anydex,ipv8,libtorrent,lz4,PyQt5,zope,aiohttp,psutil,configobj,ipv8_service,asynctest,numpy,networkx,async_timeout,cherrypy,nose,validate,check_os,matplotlib,pyqtgraph,_socket,aiohttp_apispec,marshmallow,PIL,anyio,freezegun,yaml
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
deleted file mode 100644
index 92a6b8d97e9..00000000000
--- a/.pre-commit-config.yaml
+++ /dev/null
@@ -1,49 +0,0 @@
-default_language_version:
-  python: python3
-repos:
--   repo: https://github.com/Tribler/mirrors-autoflake
-    rev: v1.4
-    hooks:
-      - id: autoflake
-        args: ['--in-place', '--remove-all-unused-imports', '--remove-unused-variable']
-        types: [file, python]
-
--   repo: https://github.com/Tribler/isort
-    rev: 4.3.21-3-tribler
-    hooks:
-    - id: isort
-      types: [file, python]
-
--   repo: https://github.com/ambv/black
-    rev: 20.8b1
-    hooks:
-    - id: black
-      files: |
-          (?x)(
-          ^src/tribler/gui/
-          )
-      types: [file, python]
-
--   repo: https://gitlab.com/pycqa/flake8
-    rev: 3.9.0
-    hooks:
-    - id: flake8
-      types: [file, python]
-      additional_dependencies: [
-              'flake8-import-order==0.18.1',
-              'flake8-print',
-          ]
-
--   repo: local
-    hooks:
-    - id: pylint
-      name: pylint
-      entry: pylint
-      language: system
-      files: |
-          (?x)(
-          ^src/tribler/gui/|
-          ^src/tribler/core/
-          )
-      types: [file, python]
-        
diff --git a/src/tribler/gui/upgrade_manager.py b/src/tribler/gui/upgrade_manager.py
index a6e1bbadf2f..96feb808fe5 100644
--- a/src/tribler/gui/upgrade_manager.py
+++ b/src/tribler/gui/upgrade_manager.py
@@ -4,10 +4,9 @@
 from PyQt5.QtCore import QObject, QThread, pyqtSignal
 from PyQt5.QtWidgets import QMessageBox
 
-from tribler.run_tribler_upgrader import upgrade_state_dir
 from tribler.core.upgrade.version_manager import TriblerVersion, VersionHistory
-
 from tribler.gui.utilities import connect, format_size, tr
+from tribler.run_tribler_upgrader import upgrade_state_dir
 
 
 class StateDirUpgradeWorker(QObject):