diff --git a/db/db.columns/testsuite/test_dbcolumns.py b/db/db.columns/testsuite/test_dbcolumns.py
index 11f30b80df9..bbb42c3d9a9 100644
--- a/db/db.columns/testsuite/test_dbcolumns.py
+++ b/db/db.columns/testsuite/test_dbcolumns.py
@@ -1,6 +1,6 @@
 from grass.gunittest.case import TestCase
 from grass.gunittest.main import test
-from grass.script.core import read_command, parse_command
+from grass.script.core import parse_command, read_command
 
 output_plain = """cat
 OBJECTID
diff --git a/db/db.connect/testsuite/test_db_connect.py b/db/db.connect/testsuite/test_db_connect.py
index e5c4e23885d..2bebefad27f 100644
--- a/db/db.connect/testsuite/test_db_connect.py
+++ b/db/db.connect/testsuite/test_db_connect.py
@@ -1,6 +1,6 @@
 from grass.gunittest.case import TestCase
 from grass.gunittest.main import test
-from grass.script.core import read_command, parse_command
+from grass.script.core import parse_command, read_command
 
 
 class TestDbConnect(TestCase):
diff --git a/display/d.mon/render_cmd.py b/display/d.mon/render_cmd.py
index 7f1d2d54dbc..f3f92ce670d 100644
--- a/display/d.mon/render_cmd.py
+++ b/display/d.mon/render_cmd.py
@@ -1,13 +1,13 @@
 #!/usr/bin/env python3
+import glob
 import os
 import sys
-import glob
 import tempfile
 from pathlib import Path
 
+from grass.exceptions import CalledModuleError
 from grass.script import core as grass
 from grass.script import task as gtask
-from grass.exceptions import CalledModuleError
 
 non_rendering_modules = (
     "d.colorlist",
diff --git a/display/d.text/test.py b/display/d.text/test.py
index dd8836938a5..66251e744e9 100755
--- a/display/d.text/test.py
+++ b/display/d.text/test.py
@@ -2,8 +2,8 @@
 # Author: Owen Smith - Rewritten from test.pl by Huidae Cho
 # Run: d.mon start=wx0 && ./test.py | d.text at=0,100
 import math
-from pathlib import Path
 import re
+from pathlib import Path
 
 # Quiet black syntax checking for fonts and colors to keep the code printed to
 # the display vertically short.
diff --git a/general/g.findfile/tests/test_g_findfile.py b/general/g.findfile/tests/test_g_findfile.py
index 9297ad2468e..a0b83e63d60 100644
--- a/general/g.findfile/tests/test_g_findfile.py
+++ b/general/g.findfile/tests/test_g_findfile.py
@@ -1,8 +1,8 @@
 import os
-import pytest
 from pathlib import Path
 
 import grass.script as gs
+import pytest
 
 
 @pytest.fixture(scope="module")
diff --git a/lib/gis/tests/lib_gis_env_test.py b/lib/gis/tests/lib_gis_env_test.py
index 5a2a3607360..fd88470d198 100644
--- a/lib/gis/tests/lib_gis_env_test.py
+++ b/lib/gis/tests/lib_gis_env_test.py
@@ -1,9 +1,9 @@
 """Test environment and GIS environment functions"""
 
+import json
 import os
 import subprocess
 import sys
-import json
 from textwrap import dedent
 
 import pytest
diff --git a/lib/gis/tests/lib_gis_parser_json_test.py b/lib/gis/tests/lib_gis_parser_json_test.py
index ff60d99c2aa..4eea69086cd 100644
--- a/lib/gis/tests/lib_gis_parser_json_test.py
+++ b/lib/gis/tests/lib_gis_parser_json_test.py
@@ -2,7 +2,6 @@
 
 import pytest
 
-
 from grass.exceptions import CalledModuleError
 
 
diff --git a/lib/gis/testsuite/gis_lib_env_test.py b/lib/gis/testsuite/gis_lib_env_test.py
index fafc00a37ed..4845a888429 100644
--- a/lib/gis/testsuite/gis_lib_env_test.py
+++ b/lib/gis/testsuite/gis_lib_env_test.py
@@ -3,8 +3,8 @@
 @author Soeren Gebbert
 """
 
-from grass.gunittest.case import TestCase
 import grass.lib.gis as libgis
+from grass.gunittest.case import TestCase
 
 
 class GisLibraryTestEnv(TestCase):
diff --git a/lib/gis/testsuite/gis_lib_str_color.py b/lib/gis/testsuite/gis_lib_str_color.py
index c784ab95d39..754320f4aba 100644
--- a/lib/gis/testsuite/gis_lib_str_color.py
+++ b/lib/gis/testsuite/gis_lib_str_color.py
@@ -5,11 +5,10 @@
 
 from ctypes import byref, c_int
 
+import grass.lib.gis as libgis
 from grass.gunittest.case import TestCase
 from grass.gunittest.main import test
 
-import grass.lib.gis as libgis
-
 
 class StringToColorTestCase(TestCase):
     """Test C function G_str_to_color() from gis library"""
diff --git a/lib/gis/testsuite/gis_lib_tokenize.py b/lib/gis/testsuite/gis_lib_tokenize.py
index 89c70e5e722..73e0707aed1 100644
--- a/lib/gis/testsuite/gis_lib_tokenize.py
+++ b/lib/gis/testsuite/gis_lib_tokenize.py
@@ -3,11 +3,10 @@
 @author Vaclav Petras
 """
 
+import grass.lib.gis as libgis
 from grass.gunittest.case import TestCase
 from grass.gunittest.main import test
 
-import grass.lib.gis as libgis
-
 # TODO: add tests for content (now testing only number of items)
 
 
diff --git a/lib/gis/testsuite/test_gis_lib_getl.py b/lib/gis/testsuite/test_gis_lib_getl.py
index 1a32eb6a2a6..925354109d7 100644
--- a/lib/gis/testsuite/test_gis_lib_getl.py
+++ b/lib/gis/testsuite/test_gis_lib_getl.py
@@ -3,8 +3,8 @@
 @author Vaclav Petras
 """
 
-import os
 import ctypes
+import os
 import unittest
 from pathlib import Path
 
diff --git a/lib/gis/testsuite/test_parser_json.py b/lib/gis/testsuite/test_parser_json.py
index dcbc7f1698d..1a6847cc8dd 100644
--- a/lib/gis/testsuite/test_parser_json.py
+++ b/lib/gis/testsuite/test_parser_json.py
@@ -8,11 +8,12 @@
 @author Soeren Gebbert
 """
 
+import json
 import subprocess
+
 from grass.gunittest.case import TestCase
 from grass.gunittest.utils import xfail_windows
 from grass.script import decode
-import json
 
 
 class TestParserJson(TestCase):
diff --git a/lib/imagery/testsuite/test_imagery_find.py b/lib/imagery/testsuite/test_imagery_find.py
index 72e99bc2776..32e0bdf5390 100644
--- a/lib/imagery/testsuite/test_imagery_find.py
+++ b/lib/imagery/testsuite/test_imagery_find.py
@@ -14,19 +14,17 @@
 
 from grass.gunittest.case import TestCase
 from grass.gunittest.main import test
-
-from grass.script.core import tempname
-from grass.pygrass import utils
-from grass.pygrass.gis import Mapset
-
 from grass.lib.gis import G_mapset_path
 from grass.lib.imagery import (
+    I_SIGFILE_TYPE_LIBSVM,
     I_SIGFILE_TYPE_SIG,
     I_SIGFILE_TYPE_SIGSET,
-    I_SIGFILE_TYPE_LIBSVM,
     I_find_signature,
     I_find_signature2,
 )
+from grass.pygrass import utils
+from grass.pygrass.gis import Mapset
+from grass.script.core import tempname
 
 
 class FindSignatureTestCase(TestCase):
diff --git a/lib/imagery/testsuite/test_imagery_sigfile.py b/lib/imagery/testsuite/test_imagery_sigfile.py
index 2c6a927d634..dcc582c11fe 100644
--- a/lib/imagery/testsuite/test_imagery_sigfile.py
+++ b/lib/imagery/testsuite/test_imagery_sigfile.py
@@ -9,36 +9,34 @@
 for details
 """
 
-import stat
 import ctypes
 import os
 import shutil
+import stat
 from pathlib import Path
 
 from grass.gunittest.case import TestCase
 from grass.gunittest.main import test
-
-from grass.script.core import tempname
-from grass.pygrass import utils
-from grass.pygrass.gis import Mapset
-
 from grass.lib.gis import G_mapset_path
-from grass.lib.raster import Rast_write_semantic_label
 from grass.lib.imagery import (
-    Signature,
-    Ref,
-    I_init_signatures,
-    I_new_signature,
+    I_add_file_to_group_ref,
     I_fopen_signature_file_new,
-    I_write_signatures,
     I_fopen_signature_file_old,
-    I_read_signatures,
-    I_sort_signatures_by_semantic_label,
+    I_free_group_ref,
     I_free_signatures,
     I_init_group_ref,
-    I_add_file_to_group_ref,
-    I_free_group_ref,
+    I_init_signatures,
+    I_new_signature,
+    I_read_signatures,
+    I_sort_signatures_by_semantic_label,
+    I_write_signatures,
+    Ref,
+    Signature,
 )
+from grass.lib.raster import Rast_write_semantic_label
+from grass.pygrass import utils
+from grass.pygrass.gis import Mapset
+from grass.script.core import tempname
 
 
 class SignatureFileTestCase(TestCase):
diff --git a/lib/imagery/testsuite/test_imagery_signature_management.py b/lib/imagery/testsuite/test_imagery_signature_management.py
index e180090c655..b7c23e87a12 100644
--- a/lib/imagery/testsuite/test_imagery_signature_management.py
+++ b/lib/imagery/testsuite/test_imagery_signature_management.py
@@ -9,40 +9,38 @@
 for details
 """
 
+import ctypes
 import os
 import shutil
-import ctypes
+from pathlib import Path
 
+import grass.script as gs
 from grass.gunittest.case import TestCase
 from grass.gunittest.main import test
 from grass.gunittest.utils import xfail_windows
-
-from grass.script.core import tempname
-import grass.script as gs
-from grass.pygrass import utils
-from grass.pygrass.gis import Mapset, make_mapset
-from pathlib import Path
-
 from grass.lib.gis import (
-    G_mapset_path,
-    G_make_mapset,
-    G_reset_mapsets,
     GNAME_MAX,
     HOST_DIRSEP,
+    G_make_mapset,
+    G_mapset_path,
+    G_reset_mapsets,
 )
 from grass.lib.imagery import (
+    I_SIGFILE_TYPE_LIBSVM,
     I_SIGFILE_TYPE_SIG,
     I_SIGFILE_TYPE_SIGSET,
-    I_SIGFILE_TYPE_LIBSVM,
     I_find_signature,
-    I_signatures_remove,
-    I_signatures_copy,
-    I_signatures_rename,
-    I_signatures_list_by_type,
     I_free_signatures_list,
     I_get_signatures_dir,
     I_make_signatures_dir,
+    I_signatures_copy,
+    I_signatures_list_by_type,
+    I_signatures_remove,
+    I_signatures_rename,
 )
+from grass.pygrass import utils
+from grass.pygrass.gis import Mapset, make_mapset
+from grass.script.core import tempname
 
 
 class GetSignaturesDirTestCase(TestCase):
diff --git a/lib/imagery/testsuite/test_imagery_sigsetfile.py b/lib/imagery/testsuite/test_imagery_sigsetfile.py
index fd8d6845dbf..04be4985004 100644
--- a/lib/imagery/testsuite/test_imagery_sigsetfile.py
+++ b/lib/imagery/testsuite/test_imagery_sigsetfile.py
@@ -9,37 +9,35 @@
 for details
 """
 
-import stat
 import ctypes
 import os
 import shutil
+import stat
 from pathlib import Path
 
 from grass.gunittest.case import TestCase
 from grass.gunittest.main import test
-
-from grass.script.core import tempname
-from grass.pygrass import utils
-from grass.pygrass.gis import Mapset
-
 from grass.lib.gis import G_mapset_path
-from grass.lib.raster import Rast_write_semantic_label
 from grass.lib.imagery import (
-    SigSet,
+    I_add_file_to_group_ref,
+    I_fopen_sigset_file_new,
+    I_fopen_sigset_file_old,
+    I_free_group_ref,
+    I_init_group_ref,
     I_InitSigSet,
     I_NewClassSig,
     I_NewSubSig,
-    I_WriteSigSet,
     I_ReadSigSet,
     I_SortSigSetBySemanticLabel,
-    I_fopen_sigset_file_new,
-    I_fopen_sigset_file_old,
+    I_WriteSigSet,
     Ref,
-    I_init_group_ref,
-    I_add_file_to_group_ref,
-    I_free_group_ref,
     ReturnString,
+    SigSet,
 )
+from grass.lib.raster import Rast_write_semantic_label
+from grass.pygrass import utils
+from grass.pygrass.gis import Mapset
+from grass.script.core import tempname
 
 
 class SigSetFileTestCase(TestCase):
diff --git a/lib/init/grass.py b/lib/init/grass.py
index 270803ddc81..1e66fa7ce9c 100755
--- a/lib/init/grass.py
+++ b/lib/init/grass.py
@@ -57,7 +57,6 @@
 import tempfile
 import unicodedata
 import uuid
-
 from pathlib import Path
 from typing import TYPE_CHECKING, Literal, NoReturn
 
diff --git a/lib/init/testsuite/test_grass_tmp_mapset.py b/lib/init/testsuite/test_grass_tmp_mapset.py
index e091a1b51b0..65bcaf75f8f 100644
--- a/lib/init/testsuite/test_grass_tmp_mapset.py
+++ b/lib/init/testsuite/test_grass_tmp_mapset.py
@@ -14,11 +14,10 @@
 for details.
 """
 
-import unittest
 import os
 import shutil
 import subprocess
-
+import unittest
 
 # Note that unlike rest of GRASS, here we are using unittest package
 # directly. The grass.gunittest machinery for mapsets is not needed here.
diff --git a/lib/raster/tests/lib_raster_reclass_test.py b/lib/raster/tests/lib_raster_reclass_test.py
index dca19125644..06acf8aae78 100644
--- a/lib/raster/tests/lib_raster_reclass_test.py
+++ b/lib/raster/tests/lib_raster_reclass_test.py
@@ -1,13 +1,13 @@
 import os
-from pathlib import Path
 from io import StringIO
+from pathlib import Path
 
 import pytest
 
-from grass.script import MaskManager
-from grass.tools import Tools
 from grass.exceptions import CalledModuleError
 from grass.experimental import MapsetSession
+from grass.script import MaskManager
+from grass.tools import Tools
 
 
 def test_reclass_as_mask_correct_state(session):
diff --git a/lib/raster/testsuite/rast_parse_color_rule.py b/lib/raster/testsuite/rast_parse_color_rule.py
index f2d9db51f07..0c6595cea3b 100644
--- a/lib/raster/testsuite/rast_parse_color_rule.py
+++ b/lib/raster/testsuite/rast_parse_color_rule.py
@@ -10,11 +10,10 @@
 for details
 """
 
-from ctypes import byref, c_int, c_double
+from ctypes import byref, c_double, c_int
 
 from grass.gunittest.case import TestCase
 from grass.gunittest.main import test
-
 from grass.lib.raster import Rast_parse_color_rule, Rast_parse_color_rule_error
 
 
diff --git a/lib/raster/testsuite/test_raster_metadata.py b/lib/raster/testsuite/test_raster_metadata.py
index 43bbfaeea99..dcca6c46717 100644
--- a/lib/raster/testsuite/test_raster_metadata.py
+++ b/lib/raster/testsuite/test_raster_metadata.py
@@ -14,18 +14,16 @@
 
 from grass.gunittest.case import TestCase
 from grass.gunittest.main import test
-
-from grass.script.core import tempname
-from grass.pygrass.gis import Mapset
-from grass.pygrass import utils
-
 from grass.lib.gis import G_remove_misc
 from grass.lib.raster import (
+    Rast_get_semantic_label_or_name,
     Rast_legal_semantic_label,
     Rast_read_semantic_label,
-    Rast_get_semantic_label_or_name,
     Rast_write_semantic_label,
 )
+from grass.pygrass import utils
+from grass.pygrass.gis import Mapset
+from grass.script.core import tempname
 
 
 class RastLegalBandIdTestCase(TestCase):
diff --git a/lib/vector/Vlib/testsuite/test_vlib_box.py b/lib/vector/Vlib/testsuite/test_vlib_box.py
index 71166d4fd29..f085d33826f 100644
--- a/lib/vector/Vlib/testsuite/test_vlib_box.py
+++ b/lib/vector/Vlib/testsuite/test_vlib_box.py
@@ -13,8 +13,8 @@
 """
 
 import ctypes
-import grass.lib.vector as libvect
 
+import grass.lib.vector as libvect
 from grass.gunittest.case import TestCase
 from grass.gunittest.main import test
 
diff --git a/lib/vector/Vlib/testsuite/test_vlib_intersect.py b/lib/vector/Vlib/testsuite/test_vlib_intersect.py
index 1f62336a809..f2861e6d539 100644
--- a/lib/vector/Vlib/testsuite/test_vlib_intersect.py
+++ b/lib/vector/Vlib/testsuite/test_vlib_intersect.py
@@ -13,7 +13,6 @@
 """
 
 import grass.lib.vector as libvect
-
 from grass.gunittest.case import TestCase
 from grass.gunittest.main import test
 
diff --git a/locale/grass_po_stats.py b/locale/grass_po_stats.py
index db8106d51f5..9c142773257 100644
--- a/locale/grass_po_stats.py
+++ b/locale/grass_po_stats.py
@@ -22,7 +22,6 @@
 import os
 import subprocess
 import sys
-
 from pathlib import Path
 
 
diff --git a/man/build.py b/man/build.py
index a7e9f5817c9..a802b818adb 100644
--- a/man/build.py
+++ b/man/build.py
@@ -103,7 +103,7 @@ def get_files(man_dir, cls=None, ignore_gui=True, extension: str = "html"):
 
 def write_header(f: IO, title, ismain=False, body_width="99%", template: str = "html"):
     if template == "html":
-        from build_html import header1_tmpl, macosx_tmpl, header2_tmpl
+        from build_html import header1_tmpl, header2_tmpl, macosx_tmpl
     else:
         from build_md import header1_tmpl, header2_tmpl
     f.write(header1_tmpl.substitute(title=title))
diff --git a/man/build_check.py b/man/build_check.py
index 1dc578c56af..f698e1440cb 100644
--- a/man/build_check.py
+++ b/man/build_check.py
@@ -6,10 +6,10 @@
 #   Markus Neteler
 #   Glynn Clements
 
-import sys
 import os
+import sys
 
-from build import message_tmpl, get_files, read_file
+from build import get_files, message_tmpl, read_file
 from build_html import man_dir
 
 os.chdir(man_dir)
diff --git a/man/build_check_rest.py b/man/build_check_rest.py
index f9868dfd697..fbdff214542 100644
--- a/man/build_check_rest.py
+++ b/man/build_check_rest.py
@@ -6,10 +6,10 @@
 #   Markus Neteler
 #   Glynn Clements
 
-import sys
 import os
+import sys
 
-from build_rest import rest_dir, message_tmpl, rest_files, read_file
+from build_rest import message_tmpl, read_file, rest_dir, rest_files
 
 os.chdir(rest_dir)
 
diff --git a/man/build_class.py b/man/build_class.py
index 822bad6bd3d..a97d6ea8655 100644
--- a/man/build_class.py
+++ b/man/build_class.py
@@ -6,8 +6,8 @@
 #   Markus Neteler
 #   Glynn Clements
 
-import sys
 import os
+import sys
 
 no_intro_page_classes = ["display", "general", "miscellaneous", "postscript"]
 
@@ -15,19 +15,19 @@
 def build_class(ext):
     if ext == "html":
         from build_html import (
-            modclass_tmpl,
-            get_desc,
             desc2_tmpl,
-            modclass_intro_tmpl,
+            get_desc,
             man_dir,
+            modclass_intro_tmpl,
+            modclass_tmpl,
         )
     else:
         from build_md import (
-            modclass_tmpl,
-            get_desc,
             desc2_tmpl,
-            modclass_intro_tmpl,
+            get_desc,
             man_dir,
+            modclass_intro_tmpl,
+            modclass_tmpl,
         )
 
     os.chdir(man_dir)
@@ -74,12 +74,12 @@ def build_class(ext):
         year = sys.argv[3]
 
     from build import (
-        to_title,
         check_for_desc_override,
-        replace_file,
         get_files,
-        write_header,
+        replace_file,
+        to_title,
         write_footer,
+        write_header,
     )
 
     build_class("html")
diff --git a/man/build_class_graphical.py b/man/build_class_graphical.py
index 4b67a69998b..5a6aa5a74ed 100644
--- a/man/build_class_graphical.py
+++ b/man/build_class_graphical.py
@@ -13,30 +13,27 @@
 #
 #############################################################################
 
-import sys
-import os
 import fnmatch
+import os
+import sys
 
+import build_md
 from build import (
+    check_for_desc_override,
     default_year,
+    get_files,
     grass_version,
+    replace_file,
     to_title,
-    get_files,
-    check_for_desc_override,
     write_footer,
-    replace_file,
 )
-
 from build_html import (
-    header1_tmpl,
-    modclass_intro_tmpl,
     get_desc,
+    header1_tmpl,
     man_dir,
+    modclass_intro_tmpl,
 )
 
-import build_md
-
-
 graphical_index_style = """\
 <style>
 .img-list {
diff --git a/man/build_class_rest.py b/man/build_class_rest.py
index b6c4ec28a51..827db672b56 100644
--- a/man/build_class_rest.py
+++ b/man/build_class_rest.py
@@ -6,21 +6,21 @@
 #   Markus Neteler
 #   Glynn Clements
 
-import sys
 import os
+import sys
 
 from build_rest import (
-    rest_dir,
+    check_for_desc_override,
+    desc2_tmpl,
+    get_desc,
     grass_version,
     modclass_intro_tmpl,
     modclass_tmpl,
-    desc2_tmpl,
-    write_rest_header,
-    write_rest_footer,
-    rest_files,
-    check_for_desc_override,
-    get_desc,
     replace_file,
+    rest_dir,
+    rest_files,
+    write_rest_footer,
+    write_rest_header,
 )
 
 os.chdir(rest_dir)
diff --git a/man/build_full_index.py b/man/build_full_index.py
index bad3ce593b2..a2db4f77f41 100644
--- a/man/build_full_index.py
+++ b/man/build_full_index.py
@@ -6,21 +6,20 @@
 #   Markus Neteler
 #   Glynn Clements
 
-import sys
 import os
-
+import sys
 from datetime import date
 from operator import itemgetter
 
 from build import (
+    check_for_desc_override,
     get_files,
-    write_footer,
-    write_header,
     grass_version,
     grass_version_major,
     grass_version_minor,
-    check_for_desc_override,
     replace_file,
+    write_footer,
+    write_header,
 )
 
 CORE_TEXT = """\
@@ -75,19 +74,19 @@ def build_full_index(ext, index_name, source_dir, year, text_type):
     """Generate index with all tools"""
     if ext == "html":
         from build_html import (
-            man_dir,
-            full_index_header,
             cmd2_tmpl,
             desc1_tmpl,
+            full_index_header,
             get_desc,
+            man_dir,
             toc,
         )
     else:
         from build_md import (
-            man_dir,
             cmd2_tmpl,
             desc1_tmpl,
             get_desc,
+            man_dir,
         )
 
     if source_dir is None:
diff --git a/man/build_full_index_rest.py b/man/build_full_index_rest.py
index 01d4c9a89aa..e4470fba9dc 100644
--- a/man/build_full_index_rest.py
+++ b/man/build_full_index_rest.py
@@ -9,18 +9,18 @@
 import os
 
 from build_rest import (
+    check_for_desc_override,
+    cmd2_tmpl,
+    desc1_tmpl,
+    full_index_header,
+    get_desc,
+    grass_version,
+    replace_file,
     rest_dir,
     rest_files,
-    write_rest_header,
-    grass_version,
-    full_index_header,
     sections,
-    cmd2_tmpl,
-    check_for_desc_override,
-    get_desc,
-    desc1_tmpl,
     write_rest_footer,
-    replace_file,
+    write_rest_header,
 )
 
 os.chdir(rest_dir)
diff --git a/man/build_graphical_index.py b/man/build_graphical_index.py
index 55a168228df..0c6c12ccc34 100755
--- a/man/build_graphical_index.py
+++ b/man/build_graphical_index.py
@@ -98,8 +98,8 @@ def main(ext):
 
 if __name__ == "__main__":
     from build import (
-        write_footer,
         grass_version,
+        write_footer,
     )
 
     main("html")
diff --git a/man/build_index.py b/man/build_index.py
index 16afd692fca..1776a1b1abd 100644
--- a/man/build_index.py
+++ b/man/build_index.py
@@ -6,15 +6,15 @@
 #   Markus Neteler
 #   Glynn Clements
 
-import sys
 import os
+import sys
 
 from build import (
-    write_header,
+    grass_version,
+    replace_file,
     write_cmd_overview,
     write_footer,
-    replace_file,
-    grass_version,
+    write_header,
 )
 
 year = None
diff --git a/man/build_index_rest.py b/man/build_index_rest.py
index 8ce31f618b5..855e592746c 100644
--- a/man/build_index_rest.py
+++ b/man/build_index_rest.py
@@ -10,12 +10,12 @@
 import os
 
 from build_rest import (
-    rest_dir,
     grass_version,
-    write_rest_header,
+    replace_file,
+    rest_dir,
     write_rest_cmd_overview,
     write_rest_footer,
-    replace_file,
+    write_rest_header,
 )
 
 os.chdir(rest_dir)
diff --git a/man/build_keywords.py b/man/build_keywords.py
index 54aa7312406..bc71b52b84f 100644
--- a/man/build_keywords.py
+++ b/man/build_keywords.py
@@ -27,10 +27,10 @@
 @author Martin Landa - Markdown support
 """
 
+import glob
 import os
 import re
 import sys
-import glob
 
 from build import (
     grass_version,
diff --git a/man/build_manual_gallery.py b/man/build_manual_gallery.py
index 9038c9a5e98..cc78157bb33 100755
--- a/man/build_manual_gallery.py
+++ b/man/build_manual_gallery.py
@@ -14,12 +14,12 @@
 #############################################################################
 from __future__ import annotations
 
-import os
-from pathlib import Path
 import fnmatch
+import operator
+import os
 import re
+from pathlib import Path
 from typing import TYPE_CHECKING
-import operator
 
 if TYPE_CHECKING:
     from collections.abc import Iterable
@@ -225,8 +225,8 @@ def main(ext):
 
 if __name__ == "__main__":
     from build import (
-        write_footer,
         grass_version,
+        write_footer,
     )
 
     img_files_html = main("html")
diff --git a/man/build_topics.py b/man/build_topics.py
index f6d0f560655..d83adb7c1aa 100644
--- a/man/build_topics.py
+++ b/man/build_topics.py
@@ -3,10 +3,10 @@
 # generates topics.html and topic_*.html
 # (c) 2012-2025 by the GRASS Development Team
 
+import glob
 import os
 import re
 import sys
-import glob
 from pathlib import Path
 
 year = os.getenv("VERSION_DATE")
@@ -17,21 +17,21 @@
 def build_topics(ext):
     if ext == "html":
         from build_html import (
+            desc1_tmpl,
             header1_tmpl,
-            headertopics_tmpl,
             headerkey_tmpl,
-            desc1_tmpl,
-            moduletopics_tmpl,
+            headertopics_tmpl,
             man_dir,
+            moduletopics_tmpl,
         )
     else:
         from build_md import (
+            desc1_tmpl,
             header1_tmpl,
-            headertopics_tmpl,
             headerkey_tmpl,
-            desc1_tmpl,
-            moduletopics_tmpl,
+            headertopics_tmpl,
             man_dir,
+            moduletopics_tmpl,
         )
 
     keywords = {}
diff --git a/man/mkdocs/scripts/hook_list_scripts.py b/man/mkdocs/scripts/hook_list_scripts.py
index 1e1b4c70a0b..f815e5bdd2b 100644
--- a/man/mkdocs/scripts/hook_list_scripts.py
+++ b/man/mkdocs/scripts/hook_list_scripts.py
@@ -1,5 +1,6 @@
-from pathlib import Path
 import re
+from pathlib import Path
+
 from jinja2 import Environment
 
 
diff --git a/man/parser_standard_options.py b/man/parser_standard_options.py
index 03d9c72c0ef..2225b85b7e3 100644
--- a/man/parser_standard_options.py
+++ b/man/parser_standard_options.py
@@ -12,9 +12,8 @@
 import os
 import re
 import sys
-
-from typing import IO, TYPE_CHECKING
 from collections import defaultdict
+from typing import IO, TYPE_CHECKING
 
 if TYPE_CHECKING:
     from collections.abc import Generator
diff --git a/misc/m.measure/testsuite/test_m_measure.py b/misc/m.measure/testsuite/test_m_measure.py
index 1b49a7b1b59..8473d0b0161 100644
--- a/misc/m.measure/testsuite/test_m_measure.py
+++ b/misc/m.measure/testsuite/test_m_measure.py
@@ -1,6 +1,6 @@
 from grass.gunittest.case import TestCase
 from grass.gunittest.main import test
-from grass.script.core import read_command, parse_command
+from grass.script.core import parse_command, read_command
 
 
 class TestMMeasure(TestCase):
diff --git a/pyproject.toml b/pyproject.toml
index f58e088bc43..d706f9047db 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -170,7 +170,6 @@ ignore = [
     "FBT001",  # boolean-type-hint-positional-argument
     "FBT002",  # boolean-default-value-positional-argument
     "FBT003",  # boolean-positional-value-in-call
-    "I001",    # unsorted-imports
     "INP001",  # implicit-namespace-package
     "N801",    # invalid-class-name
     "N802",    # invalid-function-name
@@ -276,6 +275,8 @@ ignore = [
     "UP032",   # f-string
 ]
 
+[tool.ruff.lint.isort]
+known-first-party = ["grass"]
 
 [tool.ruff.lint.per-file-ignores]
 # See https://docs.astral.sh/ruff/settings/#lint_per-file-ignores
@@ -285,10 +286,14 @@ ignore = [
 # Ignored after reverting:
 "gui/**" = ["PLW0108"] # See https://github.com/OSGeo/grass/issues/4124
 # Other ignores:
+"**.ipynb" = ["I001"]
 "**.py" = ["PYI066"]
 "*/testsuite/**.py" = ["PT009", "PT027", "PLW1514"]
 "display/d.mon/render_cmd.py" = ["PLW1514"]
 "display/d.text/test.py" = ["PLW1514"]
+"doc/**.py" = ["I001"]
+"general/**.py" = ["I001"]
+"gui/**.py" = ["I001"]
 "gui/wxpython/animation/temporal_manager.py" = ["PLW1514"]
 "gui/wxpython/core/gconsole.py" = ["PLW1514"]
 "gui/wxpython/core/render.py" = ["PLW1514"]
@@ -330,6 +335,7 @@ ignore = [
 "gui/wxpython/vnet/vnet_data.py" = ["PLW1514"]
 "gui/wxpython/web_services/dialogs.py" = ["PLW1514"]
 "gui/wxpython/wxplot/profile.py" = ["A005", "PLW1514", "SIM115"]
+"imagery/**.py" = ["I001"]
 "imagery/i.atcorr/create_iwave.py" = ["PLW1514"]
 "lib/imagery/testsuite/test_imagery_sigsetfile.py" = ["FURB152"]
 "lib/init/grass.py" = ["PLW1514", "SIM115"]
@@ -349,6 +355,7 @@ ignore = [
 "man/build_rest.py" = ["PLW1514", "PTH208"]
 "man/build_topics.py" = ["PLW1514"]
 "man/parser_standard_options.py" = ["PLW1514"]
+"python/grass/**.py" = ["I001"]
 "python/grass/__init__.py" = ["PTH110", "PYI056"]
 "python/grass/exp*/tests/grass_script_mapset_session_test.py" = ["SIM117"]
 "python/grass/exp*/tests/grass_script_tmp_mapset_session_test.py" = ["SIM117"]
@@ -396,11 +403,13 @@ ignore = [
 "python/grass/temporal/univar_statistics.py" = ["PLW1514", "SIM115"]
 "python/grass/tools/support.py" = ["PLR6201"]
 "python/grass/utils/download.py" = ["PTH208", "SIM115"]
+"raster/**.py" = ["I001"]
 "raster/r.*/testsuite/*.py" = ["SIM115"]
 "raster/r.mfilter/benchmark/benchmark_r_mfilter_nprocs.py" = ["PLW1514"]
 "raster/r.topidx/*.py" = ["SIM115"]
 "raster/r.topidx/arc_to_gridatb.py" = ["PLW1514"]
 "raster/r.topidx/gridatb_to_arc.py" = ["PLW1514"]
+"scripts/**.py" = ["I001"]
 "scripts/d.correlate/d.correlate.py" = ["PLW1514", "SIM115"]
 "scripts/d.frame/d.frame.py" = ["PLW1514", "SIM115"]
 "scripts/d.out.file/d.out.file.py" = ["PLW1514"]
@@ -450,6 +459,7 @@ ignore = [
 "temporal/t.remove/t.remove.py" = ["PLW1514"]
 "temporal/t.unregister/t.unregister.py" = ["PLW1514"]
 "utils/*.py" = ["PLW1514"]
+"vector/**.py" = ["I001"]
 
 [tool.ruff.lint.flake8-import-conventions.extend-aliases]
 # Declare a custom aliases, checked with rule ICN001
@@ -545,7 +555,7 @@ py-version = "3.10"
 # source root is an absolute path or a path relative to the current working
 # directory used to determine a package namespace for modules located under the
 # source root.
-source-roots = ["python", "gui/wxpython"]
+source-roots = ["python", "gui/wxpython", "man"]
 
 
 [tool.pylint.design]
diff --git a/raster3d/r3.flow/testsuite/r3flow_test.py b/raster3d/r3.flow/testsuite/r3flow_test.py
index a1009ef719f..b8277406e41 100644
--- a/raster3d/r3.flow/testsuite/r3flow_test.py
+++ b/raster3d/r3.flow/testsuite/r3flow_test.py
@@ -5,6 +5,7 @@
 """
 
 import os
+
 from grass.gunittest.case import TestCase
 from grass.gunittest.main import test
 
diff --git a/raster3d/r3.gradient/testsuite/r3gradient_test.py b/raster3d/r3.gradient/testsuite/r3gradient_test.py
index b1ae270605d..fec7a21914d 100644
--- a/raster3d/r3.gradient/testsuite/r3gradient_test.py
+++ b/raster3d/r3.gradient/testsuite/r3gradient_test.py
@@ -7,7 +7,6 @@
 from grass.gunittest.case import TestCase
 from grass.gunittest.main import test
 
-
 r3univar_test_grad_x = """
 n=600
 null_cells=0
diff --git a/raster3d/r3.info/testsuite/test_r3_info.py b/raster3d/r3.info/testsuite/test_r3_info.py
index 75a9d8c95cf..7bf4ef2e74a 100644
--- a/raster3d/r3.info/testsuite/test_r3_info.py
+++ b/raster3d/r3.info/testsuite/test_r3_info.py
@@ -1,6 +1,6 @@
 from grass.gunittest.case import TestCase
 from grass.gunittest.main import test
-from grass.script.core import read_command, parse_command
+from grass.script.core import parse_command, read_command
 
 
 class TestR3Info(TestCase):
diff --git a/temporal/t.list/t.list.py b/temporal/t.list/t.list.py
index 7f8cab78ddc..7e520d237a4 100755
--- a/temporal/t.list/t.list.py
+++ b/temporal/t.list/t.list.py
@@ -88,9 +88,9 @@
 # %end
 
 import sys
+from contextlib import nullcontext
 
 import grass.script as gs
-from contextlib import nullcontext
 
 ############################################################################
 
diff --git a/temporal/t.rast.colors/t.rast.colors.py b/temporal/t.rast.colors/t.rast.colors.py
index 7ffa7993d0f..b70e27e23d6 100755
--- a/temporal/t.rast.colors/t.rast.colors.py
+++ b/temporal/t.rast.colors/t.rast.colors.py
@@ -102,9 +102,11 @@
 # % guisection: Define
 # %end
 
+from pathlib import Path
+
 import grass.script as gs
 from grass.exceptions import CalledModuleError
-from pathlib import Path
+
 ############################################################################
 
 
diff --git a/temporal/t.rast.extract/tests/test_t_rast_extract_pytest.py b/temporal/t.rast.extract/tests/test_t_rast_extract_pytest.py
index afe3936abbe..218f1844398 100644
--- a/temporal/t.rast.extract/tests/test_t_rast_extract_pytest.py
+++ b/temporal/t.rast.extract/tests/test_t_rast_extract_pytest.py
@@ -18,8 +18,9 @@
 import shutil
 from pathlib import Path
 
-import grass.script as gs
 import pytest
+
+import grass.script as gs
 from grass.tools import Tools
 
 
diff --git a/temporal/t.rast.series/t.rast.series.py b/temporal/t.rast.series/t.rast.series.py
index 825e6d69098..af2a51dd62d 100755
--- a/temporal/t.rast.series/t.rast.series.py
+++ b/temporal/t.rast.series/t.rast.series.py
@@ -92,9 +92,11 @@
 # % description: Propagate NULLs
 # %end
 
+from pathlib import Path
+
 import grass.script as gs
 from grass.exceptions import CalledModuleError
-from pathlib import Path
+
 ############################################################################
 
 
diff --git a/utils/create_python_init_file.py b/utils/create_python_init_file.py
index d60d3134914..96324bf5b20 100755
--- a/utils/create_python_init_file.py
+++ b/utils/create_python_init_file.py
@@ -14,9 +14,9 @@
 @author Vaclav Petras <wenzeslaus gmail.com>
 """
 
+import glob
 import os
 import sys
-import glob
 from pathlib import Path
 
 
diff --git a/utils/g.html2man/g.html2man.py b/utils/g.html2man/g.html2man.py
index f8d5b0a89b4..1d6bae49013 100755
--- a/utils/g.html2man/g.html2man.py
+++ b/utils/g.html2man/g.html2man.py
@@ -1,11 +1,11 @@
 #!/usr/bin/env python3
-from pathlib import Path
-import sys
 import re
-from ghtml import HTMLParser
-from ggroff import Formatter
-
+import sys
 from io import StringIO
+from pathlib import Path
+
+from ggroff import Formatter
+from ghtml import HTMLParser
 
 entities = {"nbsp": " ", "bull": "*"}
 
diff --git a/utils/g.html2man/ggroff.py b/utils/g.html2man/ggroff.py
index bb770aaa242..5d4624d5986 100644
--- a/utils/g.html2man/ggroff.py
+++ b/utils/g.html2man/ggroff.py
@@ -1,6 +1,6 @@
-import sys
 import os
 import re
+import sys
 
 __all__ = ["Formatter"]
 
diff --git a/utils/generate_last_commit_file.py b/utils/generate_last_commit_file.py
index c6eddc9a094..e9d91bad3a4 100644
--- a/utils/generate_last_commit_file.py
+++ b/utils/generate_last_commit_file.py
@@ -24,11 +24,10 @@
 
 import json
 import os
-import subprocess
 import shutil
+import subprocess
 import sys
 
-
 # Strict ISO 8601 format
 COMMIT_DATE_FORMAT = "%aI"
 
diff --git a/utils/gitlog2changelog.py b/utils/gitlog2changelog.py
index 08b736e308f..d24e8624b79 100755
--- a/utils/gitlog2changelog.py
+++ b/utils/gitlog2changelog.py
@@ -4,9 +4,9 @@
 # Distributed under the terms of the GNU General Public License v2 or later
 
 import re
-from textwrap import TextWrapper
-import sys
 import subprocess
+import sys
+from textwrap import TextWrapper
 
 rev_range = ""
 
diff --git a/utils/md_isvalid.py b/utils/md_isvalid.py
index 0eb9c228376..56bf55f1e8f 100644
--- a/utils/md_isvalid.py
+++ b/utils/md_isvalid.py
@@ -5,10 +5,10 @@
 #   (on Debian/Ubuntu - apt install markdownlint)
 #   (using Ruby installer - gem install mdl)
 
-import os
-import sys
 import argparse
+import os
 import subprocess
+import sys
 
 import grass.script as gs
 
diff --git a/utils/merge_sitemaps.py b/utils/merge_sitemaps.py
index 4d3f01af30f..422da3f534a 100644
--- a/utils/merge_sitemaps.py
+++ b/utils/merge_sitemaps.py
@@ -7,9 +7,9 @@
 """
 
 import argparse
-from xml.dom import minidom  # noqa: S408
 import urllib.parse
 from pathlib import Path
+from xml.dom import minidom  # noqa: S408
 
 
 def check_url_version(url: str, version: str) -> str:
diff --git a/utils/mkhtml.py b/utils/mkhtml.py
index b476e22eba7..3e68e04c223 100644
--- a/utils/mkhtml.py
+++ b/utils/mkhtml.py
@@ -16,16 +16,14 @@
 #
 #############################################################################
 
-import sys
+import locale
 import os
-import string
 import re
+import string
+import sys
+import urllib.parse as urlparse
 from datetime import datetime
-import locale
-
 from html.parser import HTMLParser
-
-import urllib.parse as urlparse
 from pathlib import Path
 
 try:
@@ -35,13 +33,15 @@
     gs = None
 
 from mkdocs import (
-    read_file,
-    get_version_branch,
-    get_last_git_commit,
-    top_dir as topdir,
     get_addon_path,
+    get_last_git_commit,
+    get_version_branch,
+    read_file,
     set_proxy,
 )
+from mkdocs import (
+    top_dir as topdir,
+)
 
 grass_version = os.getenv("VERSION_NUMBER", "unknown")
 trunk_url = ""
diff --git a/utils/mkmarkdown.py b/utils/mkmarkdown.py
index 17a2b898815..e4ffed5b3d5 100644
--- a/utils/mkmarkdown.py
+++ b/utils/mkmarkdown.py
@@ -17,9 +17,9 @@
 #############################################################################
 
 import os
-import sys
-import string
 import re
+import string
+import sys
 import urllib.parse as urlparse
 from pathlib import Path
 
@@ -30,12 +30,12 @@
     gs = None
 
 from mkdocs import (
-    read_file,
-    get_version_branch,
-    get_last_git_commit,
-    top_dir,
     get_addon_path,
+    get_last_git_commit,
+    get_version_branch,
+    read_file,
     set_proxy,
+    top_dir,
 )
 
 
diff --git a/utils/mkrest.py b/utils/mkrest.py
index 1cc51c72b8a..ce5fccba548 100755
--- a/utils/mkrest.py
+++ b/utils/mkrest.py
@@ -14,10 +14,10 @@
 #
 #############################################################################
 
-import sys
-import string
 import re
+import string
 import subprocess
+import sys
 from datetime import datetime
 from pathlib import Path
 
diff --git a/utils/ppmrotate.py b/utils/ppmrotate.py
index 28bfee13141..a4832edcd12 100755
--- a/utils/ppmrotate.py
+++ b/utils/ppmrotate.py
@@ -13,10 +13,10 @@
 #       for details.
 #
 
-import sys
-import os
-import atexit
 import array
+import atexit
+import os
+import sys
 from pathlib import Path
 
 import grass.script as gs
diff --git a/utils/test_generate_last_commit_file.py b/utils/test_generate_last_commit_file.py
index d5566767a92..388f9632da3 100644
--- a/utils/test_generate_last_commit_file.py
+++ b/utils/test_generate_last_commit_file.py
@@ -17,12 +17,12 @@
 @author Tomas Zigo <tomas.zigo slovanet.sk>
 """
 
-import os
 import json
+import os
 import subprocess
+from pathlib import Path
 
 import pytest
-from pathlib import Path
 
 from .generate_last_commit_file import COMMIT_DATE_FORMAT
 
diff --git a/utils/thumbnails.py b/utils/thumbnails.py
index 12115b428b5..8c9e5bb551c 100755
--- a/utils/thumbnails.py
+++ b/utils/thumbnails.py
@@ -13,14 +13,13 @@
 #       for details.
 #
 
-import os
 import atexit
+import os
 import sys
 from pathlib import Path
 
 import grass.script as gs
 
-
 tmp_grad_abs = None
 tmp_grad_rel = None
 
diff --git a/utils/update_version.py b/utils/update_version.py
index 8cab889a528..c96459342ad 100755
--- a/utils/update_version.py
+++ b/utils/update_version.py
@@ -2,12 +2,11 @@
 
 """Update VERSION file to release and development versions"""
 
-import sys
+import argparse
 import datetime
-from types import SimpleNamespace
+import sys
 from pathlib import Path
-
-import argparse
+from types import SimpleNamespace
 
 
 def read_version_file():