diff --git a/tools/dev_tools/.github/workflows/build.yml b/tools/dev_tools/.github/workflows/build.yml
index d7190075..e32144d4 100644
--- a/tools/dev_tools/.github/workflows/build.yml
+++ b/tools/dev_tools/.github/workflows/build.yml
@@ -9,7 +9,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest]
-        python-version: [2.7, 3.7, 3.8, 3.9, "3.10"]
+        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12"]
     runs-on: ${{ matrix.os }}
 
     steps:
@@ -20,8 +20,11 @@ jobs:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies
       run: |
-        pip install 'pytest-flake8<1.1' pytest-cov
+        pip install pytest flake8 pytest-cov
     - name: Test
       run: |
-        py.test --cov=. --cov-branch --cov-report=xml -v --flake8 .
+        py.test --cov=. --cov-branch --cov-report=xml -v .
+        flake8 --ignore=E402,W503 --exclude python_tools/reindent.py
     - uses: codecov/codecov-action@v1
+      with:
+        token: ${{ secrets.CODECOV_TOKEN }}
diff --git a/tools/dev_tools/check_standards.py b/tools/dev_tools/check_standards.py
index ddda6c0e..036b3a02 100755
--- a/tools/dev_tools/check_standards.py
+++ b/tools/dev_tools/check_standards.py
@@ -18,7 +18,7 @@
     print("Pygments (http://pygments.org/) library: please install.")
     print()
 
-from optparse import OptionParser
+from argparse import ArgumentParser
 
 
 def _check_do_not_commit(line, filename, num, errors):
@@ -187,15 +187,18 @@ def get_all_files():
 
 
 def main():
-    parser = OptionParser()
-    options, args = parser.parse_args()
+    parser = ArgumentParser()
+    parser.add_argument("patterns", metavar="PATTERN", nargs="*",
+                        help="File patterns to check; if unspecified, "
+                             "check all files")
+    args = parser.parse_args()
 
     errors = []
-    if len(args) == 0:
+    if len(args.patterns) == 0:
         modfiles = get_all_files()
         print("usage:", sys.argv[0], "file_patterns")
     else:
-        modfiles = args
+        modfiles = args.patterns
     for pattern in modfiles:
         expanded = glob.glob(pattern)
         # rint pattern, expanded
diff --git a/tools/dev_tools/cleanup_code.py b/tools/dev_tools/cleanup_code.py
index 57098b8f..dd42118b 100755
--- a/tools/dev_tools/cleanup_code.py
+++ b/tools/dev_tools/cleanup_code.py
@@ -4,7 +4,7 @@
    files."""
 
 from __future__ import print_function
-from optparse import OptionParser
+from argparse import ArgumentParser
 import subprocess
 import os
 import sys
@@ -24,8 +24,8 @@
 from python_tools.reindent import Reindenter
 
 
-parser = OptionParser(usage="%prog [options] [FILENAME ...]",
-                      description="""Reformat the given C++ and Python files
+parser = ArgumentParser(
+    description="""Reformat the given C++ and Python files
 (using the clang-format tool if available and
 reindent.py, respectively). If the --all option is given, reformat all such
 files under the current directory.
@@ -34,46 +34,48 @@
 by giving the -a option. autopep8 is much more aggressive than reindent.py
 and will fix other issues, such as use of old-style Python syntax.
 """)
-parser.add_option("-c", "--clang-format", dest="clang_format",
-                  default="auto", metavar="EXE",
-                  help="The clang-format command.")
-parser.add_option("-a", dest="use_ap", action="store_true", default=False,
-                  help="Use autopep8 rather than reindent.py for "
-                       "Python files.")
-parser.add_option("--all", dest="all_files", action="store_true",
-                  default=False,
-                  help="Reformat all files under current directory")
-parser.add_option("--autopep8", dest="autopep8",
-                  default="auto", metavar="EXE",
-                  help="The autopep8 command.")
-parser.add_option("-e", "--exclude", dest="exclude",
-                  default="eigen3:config_templates", metavar="DIRS",
-                  help="Colon-separated list of dirnames to ignore.")
-parser.add_option("-v", "--verbose", dest="verbose", action="store_true",
-                  default=False,
-                  help="Print extra info.")
-(options, args) = parser.parse_args()
-if not args and not options.all_files:
+parser.add_argument("-c", "--clang-format", dest="clang_format",
+                    default="auto", metavar="EXE",
+                    help="The clang-format command.")
+parser.add_argument("-a", dest="use_ap", action="store_true", default=False,
+                    help="Use autopep8 rather than reindent.py for "
+                         "Python files.")
+parser.add_argument("--all", dest="all_files", action="store_true",
+                    default=False,
+                    help="Reformat all files under current directory")
+parser.add_argument("--autopep8", dest="autopep8",
+                    default="auto", metavar="EXE",
+                    help="The autopep8 command.")
+parser.add_argument("-e", "--exclude", dest="exclude",
+                    default="eigen3:config_templates", metavar="DIRS",
+                    help="Colon-separated list of dirnames to ignore.")
+parser.add_argument("-v", "--verbose", dest="verbose", action="store_true",
+                    default=False,
+                    help="Print extra info.")
+parser.add_argument("files", metavar="FILENAME", nargs="*",
+                    help="C++ and Python files to reformat.")
+args = parser.parse_args()
+if not args.files and not args.all_files:
     parser.error("No files selected")
 
 # clang-format-3.4",
 # autopep8
 
 # search for executables
-if options.clang_format == "auto":
-    options.clang_format = None
+if args.clang_format == "auto":
+    args.clang_format = None
     for name in ["clang-format-3.4", "clang-format"]:
         if which(name):
-            options.clang_format = name
+            args.clang_format = name
             break
-if options.autopep8 == "auto":
-    options.autopep8 = None
+if args.autopep8 == "auto":
+    args.autopep8 = None
     for name in ["autopep8"]:
         if which(name):
-            options.autopep8 = name
+            args.autopep8 = name
             break
 
-exclude = options.exclude.split(":")
+exclude = args.exclude.split(":")
 
 error = None
 
@@ -137,10 +139,10 @@ def _do_get_files(glb, cur):
 
 def _get_files(glb):
     match = []
-    if len(args) == 0:
+    if len(args.files) == 0:
         match = _do_get_files(glb, ".")
     else:
-        for a in args:
+        for a in args.files:
             if os.path.isdir(a):
                 match += _do_get_files(glb, a)
             elif a.endswith(glb):
@@ -163,8 +165,8 @@ def clean_cpp(path):
     # skip code that isn't ours
     if "dependency" in path or "/eigen3/" in path:
         return
-    if options.clang_format:
-        contents = _run([options.clang_format, "--style=Google", path])
+    if args.clang_format:
+        contents = _run([args.clang_format, "--style=Google", path])
     else:
         contents = open(path, "r").read()
     contents = contents.replace("% template", "%template")
@@ -172,8 +174,8 @@ def clean_cpp(path):
 
 
 def clean_py(path):
-    if options.use_ap and options.autopep8:
-        contents = _run([options.autopep8, "--aggressive", "--aggressive",
+    if args.use_ap and args.autopep8:
+        contents = _run([args.autopep8, "--aggressive", "--aggressive",
                          path])
     else:
         r = Reindenter(open(path))
@@ -185,25 +187,25 @@ def clean_py(path):
 
 
 def main():
-    if options.verbose:
-        if options.autopep8 is None:
+    if args.verbose:
+        if args.autopep8 is None:
             print("autopep8 not found")
         else:
-            print("autopep8 is `%s`" % options.autopep8)
-        if options.clang_format is None:
+            print("autopep8 is `%s`" % args.autopep8)
+        if args.clang_format is None:
             print("clang-format not found")
         else:
-            print("clang-format is `%s`" % options.clang_format)
+            print("clang-format is `%s`" % args.clang_format)
 
     tp = ThreadPool()
 
-    if args:
-        for f in args:
+    if args.files:
+        for f in args.files:
             if f.endswith(".py"):
                 tp.add_task(clean_py, f)
             elif f.endswith(".h") or f.endswith(".cpp"):
                 tp.add_task(clean_cpp, f)
-    elif options.all_files:
+    elif args.all_files:
         for f in _get_files(".py"):
             tp.add_task(clean_py, f)
         for f in _get_files(".h") + _get_files(".cpp"):
diff --git a/tools/dev_tools/git/bootstrap_setup_git.py b/tools/dev_tools/git/bootstrap_setup_git.py
index 1f1a1fa9..cd553ebc 100755
--- a/tools/dev_tools/git/bootstrap_setup_git.py
+++ b/tools/dev_tools/git/bootstrap_setup_git.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 """Update submodules and then call the main setup_git.py. This should be
 copied to the main directory of your project and named setup_git.py."""
diff --git a/tools/dev_tools/git/setup_git.py b/tools/dev_tools/git/setup_git.py
index 0fbbbea0..6821d3ae 100755
--- a/tools/dev_tools/git/setup_git.py
+++ b/tools/dev_tools/git/setup_git.py
@@ -1,24 +1,24 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import sys
 import os.path
 import subprocess
 import glob
-from optparse import OptionParser
+from argparse import ArgumentParser
 import shutil
 
 dev_tools_path = os.path.join("tools", "dev_tools")
 
 
-opt = OptionParser()
-opt.add_option("-g", "--global",
-               action="store_true", dest="glob", default=False,
-               help="Set global git settings instead of repo "
-                    "settings [default]")
+opt = ArgumentParser()
+opt.add_argument("-g", "--global",
+                 action="store_true", dest="glob", default=False,
+                 help="Set global git settings instead of repo "
+                      "settings [default]")
 
-(options, args) = opt.parse_args()
+args = opt.parse_args()
 
-if options.glob:
+if args.glob:
     git_config = "git config --global --replace-all"
     config_contents = ""
 else:
diff --git a/tools/dev_tools/make_all_header.py b/tools/dev_tools/make_all_header.py
index ec9af48a..b10deee0 100755
--- a/tools/dev_tools/make_all_header.py
+++ b/tools/dev_tools/make_all_header.py
@@ -6,6 +6,7 @@
 
 import sys
 import glob
+import datetime
 import os
 
 sys.path.append(os.path.split(sys.argv[0])[0])
@@ -27,13 +28,14 @@ def _add_includes(headers, output):
 
 includepath = sys.argv[1][sys.argv[1].find("include") + len("include") + 1:]
 
+year = datetime.datetime.now().year
 output = ["""/**
  *  \\file %s
  *  \\brief Include all non-deprecated headers in %s.
  *
- *  Copyright 2007-2022 IMP Inventors. All rights reserved.
+ *  Copyright 2007-%d IMP Inventors. All rights reserved.
  */
-""" % (includepath, includepath[:-2].replace('/', '.'))]
+""" % (includepath, includepath[:-2].replace('/', '.'), year)]
 guard = includepath.replace(
     "/",
     "_").replace("\\",
diff --git a/tools/dev_tools/pytest.ini b/tools/dev_tools/pytest.ini
deleted file mode 100644
index aec0cb16..00000000
--- a/tools/dev_tools/pytest.ini
+++ /dev/null
@@ -1,3 +0,0 @@
-[pytest]
-flake8-ignore = E402 W503
-addopts = --ignore=python_tools/reindent.py
diff --git a/tools/dev_tools/python_tools/__init__.py b/tools/dev_tools/python_tools/__init__.py
index 17fd6027..aecd175f 100644
--- a/tools/dev_tools/python_tools/__init__.py
+++ b/tools/dev_tools/python_tools/__init__.py
@@ -174,8 +174,8 @@ def get_modules(source):
 
 
 def split(string, sep=":"):
-    return([x.replace("@", ":")
-            for x in string.replace("\\:", "@").split(sep) if x != ""])
+    return ([x.replace("@", ":")
+             for x in string.replace("\\:", "@").split(sep) if x != ""])
 
 
 def get_project_info(path):
diff --git a/tools/dev_tools/test/test_header.py b/tools/dev_tools/test/test_header.py
index a00c32bd..ef3f7b06 100644
--- a/tools/dev_tools/test/test_header.py
+++ b/tools/dev_tools/test/test_header.py
@@ -1,6 +1,7 @@
 import unittest
 import subprocess
 import os
+import datetime
 import utils
 
 TOPDIR = os.path.abspath(os.path.join(os.path.dirname(__file__), '..'))
@@ -26,13 +27,14 @@ def test_header(self):
                                   'include/test/subdir'], cwd=tmpdir)
             stdout, stderr = p.communicate()
             self.assertEqual(p.returncode, 0)
+            year = datetime.datetime.now().year
             self.assertEqual(utils.read_file(os.path.join(tmpdir,
                                                           'include/test.h')),
                              """/**
  *  \\file test.h
  *  \\brief Include all non-deprecated headers in test.
  *
- *  Copyright 2007-2022 IMP Inventors. All rights reserved.
+ *  Copyright 2007-%d IMP Inventors. All rights reserved.
  */
 
 #ifndef TEST_H
@@ -43,7 +45,7 @@ def test_header(self):
 #include <bar/deprecated.h>
 #endif
 #endif /* TEST_H */
-""")
+""" % year)
 
 
 if __name__ == '__main__':