diff --git a/pylib/Makefile b/pylib/Makefile
index 2eaa9ebfe..5cb14e092 100644
--- a/pylib/Makefile
+++ b/pylib/Makefile
@@ -24,7 +24,7 @@ endif
 .DELETE_ON_ERROR:
 .SUFFIXES:
 BLACKARGS := -t py36 anki tests setup.py tools/*.py --exclude='_pb2|buildinfo|_gen'
-ISORTARGS := anki tests setup.py
+ISORTARGS := --profile black anki tests setup.py
 
 $(shell mkdir -p .build ../dist)
 
diff --git a/pylib/anki/collection.py b/pylib/anki/collection.py
index f187be88e..f66ab90e6 100644
--- a/pylib/anki/collection.py
+++ b/pylib/anki/collection.py
@@ -33,7 +33,7 @@ from anki.tags import TagManager
 from anki.utils import devMode, ids2str, intTime
 
 if TYPE_CHECKING:
-    from anki.rsbackend import TRValue, FormatTimeSpanContextValue
+    from anki.rsbackend import FormatTimeSpanContextValue, TRValue
 
 
 class Collection:
diff --git a/pylib/anki/importing/supermemo_xml.py b/pylib/anki/importing/supermemo_xml.py
index 99398c897..2b7b9b4af 100644
--- a/pylib/anki/importing/supermemo_xml.py
+++ b/pylib/anki/importing/supermemo_xml.py
@@ -307,7 +307,9 @@ class SupermemoXmlImporter(NoteImporter):
             return sys.stdin
 
         # try to open with urllib (if source is http, ftp, or file URL)
-        import urllib.request, urllib.parse, urllib.error
+        import urllib.error
+        import urllib.parse
+        import urllib.request
 
         try:
             return urllib.request.urlopen(source)
diff --git a/pylib/anki/utils.py b/pylib/anki/utils.py
index 33c4ebe08..d65971224 100644
--- a/pylib/anki/utils.py
+++ b/pylib/anki/utils.py
@@ -386,7 +386,7 @@ class TimedLog:
 
 
 def versionWithBuild() -> str:
-    from anki.buildinfo import version, buildhash
+    from anki.buildinfo import buildhash, version
 
     return "%s (%s)" % (version, buildhash)
 
diff --git a/pylib/requirements.dev b/pylib/requirements.dev
index f544f856e..1005941f4 100644
--- a/pylib/requirements.dev
+++ b/pylib/requirements.dev
@@ -2,10 +2,5 @@ wheel
 mypy
 mypy_protobuf>=1.21
 black
-# fixme: remove pin when https://github.com/pytest-dev/pytest/issues/7558 closed
-pytest<6
-# fixme: when isort 5.0 is released, switch to pypi
-git+https://github.com/ankitects/isort#egg=isort
-# fixme: when pylint supports isort 5.0, switch to pypi
-git+https://github.com/ankitects/pylint#egg=pylint
+pytest>=6.0.1
 stringcase==1.2.0
diff --git a/qt/Makefile b/qt/Makefile
index e4800d8f5..4fc6b482f 100644
--- a/qt/Makefile
+++ b/qt/Makefile
@@ -27,7 +27,7 @@ endif
 .SUFFIXES:
 
 BLACKARGS := -t py36 aqt tests setup.py tools/*.py --exclude='aqt/forms|buildinfo|colors'
-ISORTARGS := aqt tests setup.py
+ISORTARGS := --profile black aqt tests setup.py
 
 $(shell mkdir -p .build ../dist)
 
diff --git a/qt/aqt/__init__.py b/qt/aqt/__init__.py
index 4cb1ae1aa..9727cfcbf 100644
--- a/qt/aqt/__init__.py
+++ b/qt/aqt/__init__.py
@@ -500,7 +500,7 @@ section of the manual, and ensure that location is not read-only.""",
         QApplication.setAttribute(Qt.AA_DisableWindowContextHelpButton)
 
     # proxy configured?
-    from urllib.request import proxy_bypass, getproxies
+    from urllib.request import getproxies, proxy_bypass
 
     disable_proxies = False
     try:
diff --git a/qt/aqt/main.py b/qt/aqt/main.py
index 6203e2ace..f9b80ef3a 100644
--- a/qt/aqt/main.py
+++ b/qt/aqt/main.py
@@ -1450,7 +1450,8 @@ will be lost. Continue?"""
             sys.stdout = self._oldStdout
 
     def _card_repr(self, card: anki.cards.Card) -> None:
-        import pprint, copy
+        import copy
+        import pprint
 
         if not card:
             print("no card")
@@ -1499,7 +1500,8 @@ will be lost. Continue?"""
         self.onDebugRet(frm)
 
     def onDebugRet(self, frm):
-        import pprint, traceback
+        import pprint
+        import traceback
 
         text = frm.text.toPlainText()
         card = self._debugCard
diff --git a/qt/aqt/mpv.py b/qt/aqt/mpv.py
index 0ae02ecbd..2c6c205c9 100644
--- a/qt/aqt/mpv.py
+++ b/qt/aqt/mpv.py
@@ -68,7 +68,10 @@ class MPVTimeoutError(MPVError):
 
 if isWin:
     # pylint: disable=import-error
-    import win32file, win32pipe, pywintypes, winerror  # pytype: disable=import-error
+    import pywintypes
+    import win32file  # pytype: disable=import-error
+    import win32pipe
+    import winerror
 
 
 class MPVBase:
diff --git a/qt/aqt/pinnedmodules.py b/qt/aqt/pinnedmodules.py
index ed079366f..49cc020e1 100644
--- a/qt/aqt/pinnedmodules.py
+++ b/qt/aqt/pinnedmodules.py
@@ -31,8 +31,8 @@ from anki.utils import isLin, isWin
 # external module access in Windows
 if isWin:
     import pythoncom
-    import win32com
     import pywintypes
+    import win32com
 
 if isLin:
     import fcntl
diff --git a/qt/aqt/profiles.py b/qt/aqt/profiles.py
index 08a14d250..27e37f67c 100644
--- a/qt/aqt/profiles.py
+++ b/qt/aqt/profiles.py
@@ -141,7 +141,7 @@ class ProfileManager:
                 shutil.move(oldBase, self.base)
 
     def _tryToMigrateFolder(self, oldBase):
-        from PyQt5 import QtWidgets, QtGui
+        from PyQt5 import QtGui, QtWidgets
 
         app = QtWidgets.QApplication([])
         icon = QtGui.QIcon()
diff --git a/qt/aqt/utils.py b/qt/aqt/utils.py
index 36ba5bbd4..b9a2983b1 100644
--- a/qt/aqt/utils.py
+++ b/qt/aqt/utils.py
@@ -753,6 +753,7 @@ def qtMenuShortcutWorkaround(qmenu):
 def supportText():
     import platform
     import time
+
     from aqt import mw
 
     if isWin: