diff --git a/.github/workflows/base.yml b/.github/workflows/base.yml
index e8240bc..fcbbbea 100644
--- a/.github/workflows/base.yml
+++ b/.github/workflows/base.yml
@@ -12,24 +12,32 @@ on:
   pull_request:
     branches:
       - main
+
+defaults:
+  run:
+    shell: bash -l {0}
+
 jobs:
   # pre-job to read nox tests matrix - see https://stackoverflow.com/q/66747359/7262247
   list_nox_test_sessions:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-python@v1
+      - name: Checkout
+        uses: actions/checkout@v4.1.1
+
+      - name: Install python 3.9
+        uses: actions/setup-python@v5.0.0
         with:
-          python-version: 3.7
+          python-version: 3.9
           architecture: x64
 
       - name: Install noxfile requirements
-        shell: bash -l {0}
         run: pip install -r noxfile-requirements.txt
 
-      - name: List 'tests' nox sessions
+      - name: List 'tests' nox sessions and required python versions
         id: set-matrix
-        run: echo "::set-output name=matrix::$(nox -s gha_list -- tests)"
+        run: echo "::set-output name=matrix::$(nox -s gha_list -- -s tests -v)"
+
     outputs:
       matrix: ${{ steps.set-matrix.outputs.matrix }}  # save nox sessions list to outputs
 
@@ -38,45 +46,72 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
+        # see https://github.com/actions/setup-python/issues/544
+        # os: [ ubuntu-20.04 ]
         os: [ ubuntu-latest ]  # , macos-latest, windows-latest]
         # all nox sessions: manually > dynamically from previous job
         # nox_session: ["tests-2.7", "tests-3.7"]
         nox_session: ${{ fromJson(needs.list_nox_test_sessions.outputs.matrix) }}
 
-    name: ${{ matrix.os }} ${{ matrix.nox_session }} # ${{ matrix.name_suffix }}
+    name: ${{ matrix.os }} ${{ matrix.nox_session.python }} ${{ matrix.nox_session.session }} # ${{ matrix.name_suffix }}
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v2
+      - name: Checkout
+        uses: actions/checkout@v4.1.1
+
+      - name: Install python ${{ matrix.nox_session.python }} for tests
+        uses: MatteoH2O1999/setup-python@v3.0.0  # actions/setup-python@v5.0.0
+        id: set-py
+        with:
+          python-version: ${{ matrix.nox_session.python }}
+          architecture: x64
+          allow-build: info
+          cache-build: true
 
-      # Conda install
-      - name: Install conda v3.7
-        uses: conda-incubator/setup-miniconda@v2
+      - name: Install python 3.12 for nox
+        uses: actions/setup-python@v5.0.0
         with:
-          # auto-update-conda: true
-          python-version: 3.7
-          activate-environment: noxenv
-      - run: conda info
-        shell: bash -l {0}  # so that conda works
-      - run: conda list
-        shell: bash -l {0}  # so that conda works
-
-      # Nox install + run
+          python-version: 3.12
+          architecture: x64
+
+      - name: pin virtualenv==20.15.1 in old python versions
+        # pinned to keep compatibility with old versions, see https://github.com/MatteoH2O1999/setup-python/issues/28#issuecomment-1745613621
+        if: contains(fromJson('["2.7", "3.5", "3.6"]'), matrix.nox_session.python )
+        run: sed -i "s/virtualenv/virtualenv==20.15.1/g" noxfile-requirements.txt
+
       - name: Install noxfile requirements
-        shell: bash -l {0}  # so that conda works
         run: pip install -r noxfile-requirements.txt
-      - run: conda list
-        shell: bash -l {0}  # so that conda works
-      - run: nox -s "${{ matrix.nox_session }}"
-        shell: bash -l {0}  # so that conda works
+
+      - name: Run nox session ${{ matrix.nox_session.session }}
+        run: nox -s "${{ matrix.nox_session.session }}" -v
 
       # Share ./docs/reports so that they can be deployed with doc in next job
       - name: Share reports with other jobs
-        # if: matrix.nox_session == '...': not needed, if empty wont be shared
-        uses: actions/upload-artifact@master
+        # if: matrix.nox_session == '...': not needed, if empty won't be shared
+        uses: actions/upload-artifact@v4.3.0
         with:
           name: reports_dir
           path: ./docs/reports
 
+  build_doc:
+    runs-on: ubuntu-latest
+    if: github.event_name == 'pull_request'
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4.1.1
+
+      - name: Install python 3.9 for nox
+        uses: actions/setup-python@v5.0.0
+        with:
+          python-version: 3.9
+          architecture: x64
+
+      - name: Install noxfile requirements
+        run: pip install -r noxfile-requirements.txt
+
+      - name: Build the doc including example gallery
+        run: nox -s docs -- build
+
   publish_release:
     needs: run_all_tests
     runs-on: ubuntu-latest
@@ -87,39 +122,30 @@ jobs:
           GITHUB_CONTEXT: ${{ toJSON(github) }}
         run: echo "$GITHUB_CONTEXT"
 
-      - uses: actions/checkout@v2
+      - name: Checkout with no depth
+        uses: actions/checkout@v4.1.1
         with:
           fetch-depth: 0  # so that gh-deploy works
 
+      - name: Install python 3.9 for nox
+        uses: actions/setup-python@v5.0.0
+        with:
+          python-version: 3.9
+          architecture: x64
+
       # 1) retrieve the reports generated previously
       - name: Retrieve reports
-        uses: actions/download-artifact@master
+        uses: actions/download-artifact@v4.1.1
         with:
           name: reports_dir
           path: ./docs/reports
 
-      # Conda install
-      - name: Install conda v3.7
-        uses: conda-incubator/setup-miniconda@v2
-        with:
-          # auto-update-conda: true
-          python-version: 3.7
-          activate-environment: noxenv
-      - run: conda info
-        shell: bash -l {0}  # so that conda works
-      - run: conda list
-        shell: bash -l {0}  # so that conda works
-
       # Nox install
       - name: Install noxfile requirements
-        shell: bash -l {0}  # so that conda works
         run: pip install -r noxfile-requirements.txt
-      - run: conda list
-        shell: bash -l {0}  # so that conda works
 
       # 5) Run the flake8 report and badge
       - name: Run flake8 analysis and generate corresponding badge
-        shell: bash -l {0}  # so that conda works
         run: nox -s flake8
 
       # -------------- only on Ubuntu + MAIN PUSH (no pull request, no tag) -----------
@@ -127,7 +153,6 @@ jobs:
       # 5) Publish the doc and test reports
       - name: \[not on TAG\] Publish documentation, tests and coverage reports
         if: github.event_name == 'push' && startsWith(github.ref, 'refs/heads')  # startsWith(matrix.os,'ubuntu')
-        shell: bash -l {0}  # so that conda works
         run: nox -s publish
 
       # 6) Publish coverage report
@@ -142,7 +167,7 @@ jobs:
           EOF
       - name: \[not on TAG\] Publish coverage report
         if: github.event_name == 'push' && startsWith(github.ref, 'refs/heads')
-        uses: codecov/codecov-action@v1
+        uses: codecov/codecov-action@v4.0.1
         with:
           files: ./docs/reports/coverage/coverage.xml
 
@@ -151,13 +176,12 @@ jobs:
       # 7) Create github release and build the wheel
       - name: \[TAG only\] Build wheel and create github release
         if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
-        shell: bash -l {0}  # so that conda works
         run: nox -s release -- ${{ secrets.GITHUB_TOKEN }}
 
       # 8) Publish the wheel on PyPi
       - name: \[TAG only\] Deploy on PyPi
         if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
-        uses: pypa/gh-action-pypi-publish@release/v1
+        uses: pypa/gh-action-pypi-publish@v1.8.11
         with:
           user: __token__
           password: ${{ secrets.PYPI_API_TOKEN }}
diff --git a/.gitignore b/.gitignore
index 3f6fee9..aae5488 100644
--- a/.gitignore
+++ b/.gitignore
@@ -50,7 +50,7 @@ coverage.xml
 *.py,cover
 .hypothesis/
 .pytest_cache/
-makefun/_version.py
+src/makefun/_version.py
 
 # Translations
 *.mo
diff --git a/ci_tools/nox_utils.py b/ci_tools/nox_utils.py
index 4cb8d7d..b7aebfa 100644
--- a/ci_tools/nox_utils.py
+++ b/ci_tools/nox_utils.py
@@ -1,42 +1,48 @@
-from itertools import product
-
 import asyncio
-from collections import namedtuple
-from inspect import signature, isfunction
 import logging
-from pathlib import Path
+import os
+import re
+from shlex import split
 import shutil
 import subprocess
 import sys
-import os
-
-from typing import Sequence, Dict, Union, Iterable, Mapping, Any, IO, Tuple, Optional, List
-
-from makefun import wraps, remove_signature_parameters, add_signature_parameters
+from collections import namedtuple
+from inspect import isfunction, signature
+from itertools import product
+from pathlib import Path
+from typing import IO, Any, Dict, Iterable, Mapping, Optional, Sequence, Tuple, Union
 
 import nox
+from makefun import add_signature_parameters, remove_signature_parameters, wraps
 from nox.sessions import Session
 
-
 nox_logger = logging.getLogger("nox")
 
 
-PY27, PY35, PY36, PY37, PY38, PY39, PY310 = "2.7", "3.5", "3.6", "3.7", "3.8", "3.9", "3.10"
+PY27 = "2.7"
+PY35 = "3.5"
+PY36 = "3.6"
+PY37 = "3.7"
+PY38 = "3.8"
+PY39 = "3.9"
+PY310 = "3.10"
+PY311 = "3.11"
+PY312 = "3.12"
 DONT_INSTALL = "dont_install"
 
 
 def power_session(
-        func=None,
-        envs=None,
-        grid_param_name="env",
-        python=None,
-        py=None,
-        reuse_venv=None,
-        name=None,
-        venv_backend=None,
-        venv_params=None,
-        logsdir=None,
-        **kwargs
+    func=None,
+    envs=None,
+    grid_param_name="env",
+    python=None,
+    py=None,
+    reuse_venv=None,
+    name=None,
+    venv_backend=None,
+    venv_params=None,
+    logsdir=None,
+    **kwargs
 ):
     """A nox.session on steroids
 
@@ -59,25 +65,34 @@ def power_session(
     if func is not None:
         return power_session()(func)
     else:
-        def combined_decorator(f):
-            # replace Session with PowerSession
-            f = with_power_session(f)
 
+        def combined_decorator(f):
             # open a log file for the session, use it to stream the commands stdout and stderrs,
             # and possibly inject the log file in the session function
             if logsdir is not None:
                 f = with_logfile(logs_dir=logsdir)(f)
 
+            # replace Session with PowerSession before it is passed to `with_logfile`
+            f = with_power_session(f)
+
             # decorate with @nox.session and possibly @nox.parametrize to create the grid
-            return nox_session_with_grid(python=python, py=py, envs=envs, reuse_venv=reuse_venv, name=name,
-                                         grid_param_name=grid_param_name, venv_backend=venv_backend,
-                                         venv_params=venv_params, **kwargs)(f)
+            return nox_session_with_grid(
+                python=python,
+                py=py,
+                envs=envs,
+                reuse_venv=reuse_venv,
+                name=name,
+                grid_param_name=grid_param_name,
+                venv_backend=venv_backend,
+                venv_params=venv_params,
+                **kwargs
+            )(f)
 
         return combined_decorator
 
 
 def with_power_session(f=None):
-    """ A decorator to patch the session objects in order to add all methods from Session2"""
+    """A decorator to patch the session objects in order to add all methods from Session2"""
 
     if f is not None:
         return with_power_session()(f)
@@ -86,7 +101,7 @@ def _decorator(f):
         @wraps(f)
         def _f_wrapper(**kwargs):
             # patch the session arg
-            PowerSession.patch(kwargs['session'])
+            PowerSession.patch(kwargs["session"])
 
             # finally execute the session
             return f(**kwargs)
@@ -103,10 +118,7 @@ class PowerSession(Session):
 
     # ------------ commandline runners -----------
 
-    def run2(self,
-             command: Union[Iterable[str], str],
-             logfile: Union[bool, str, Path] = True,
-             **kwargs):
+    def run2(self, command: Union[Iterable[str], str], logfile: Union[bool, str, Path] = True, **kwargs):
         """
         An improvement of session.run that is able to
 
@@ -119,14 +131,11 @@ def run2(self,
         :return:
         """
         if isinstance(command, str):
-            command = command.split(' ')
+            command = split(command)
 
         self.run(*command, logfile=logfile, **kwargs)
 
-    def run_multi(self,
-                  cmds: str,
-                  logfile: Union[bool, str, Path] = True,
-                  **kwargs):
+    def run_multi(self, cmds: str, logfile: Union[bool, str, Path] = True, **kwargs):
         """
         An improvement of session.run that is able to
 
@@ -144,16 +153,16 @@ def run_multi(self,
     # ------------ requirements installers -----------
 
     def install_reqs(
-            self,
-            # pre wired phases
-            setup=False,
-            install=False,
-            tests=False,
-            extras=(),
-            # custom phase
-            phase=None,
-            phase_reqs=None,
-            versions_dct=None
+        self,
+        # pre wired phases
+        setup=False,
+        install=False,
+        tests=False,
+        extras=(),
+        # custom phase
+        phase=None,
+        phase_reqs=None,
+        versions_dct=None,
     ):
         """
         A high-level helper to install requirements from the various project files
@@ -195,47 +204,77 @@ def install_reqs(
         # Read requirements from pyproject.toml
         toml_setup_reqs, toml_use_conda_for = read_pyproject_toml()
         if setup:
-            self.install_any("pyproject.toml#build-system", toml_setup_reqs,
-                             use_conda_for=toml_use_conda_for, versions_dct=versions_dct)
+            self.install_any(
+                "pyproject.toml#build-system",
+                toml_setup_reqs,
+                use_conda_for=toml_use_conda_for,
+                versions_dct=versions_dct,
+            )
 
         # Read test requirements from setup.cfg
         setup_cfg = read_setuptools_cfg()
         if setup:
-            self.install_any("setup.cfg#setup_requires", setup_cfg.setup_requires,
-                             use_conda_for=toml_use_conda_for, versions_dct=versions_dct)
+            self.install_any(
+                "setup.cfg#setup_requires",
+                setup_cfg.setup_requires,
+                use_conda_for=toml_use_conda_for,
+                versions_dct=versions_dct,
+            )
         if install:
-            self.install_any("setup.cfg#install_requires", setup_cfg.install_requires,
-                             use_conda_for=toml_use_conda_for, versions_dct=versions_dct)
+            self.install_any(
+                "setup.cfg#install_requires",
+                setup_cfg.install_requires,
+                use_conda_for=toml_use_conda_for,
+                versions_dct=versions_dct,
+            )
         if tests:
-            self.install_any("setup.cfg#tests_requires", setup_cfg.tests_requires,
-                             use_conda_for=toml_use_conda_for, versions_dct=versions_dct)
+            self.install_any(
+                "setup.cfg#tests_requires",
+                setup_cfg.tests_requires,
+                use_conda_for=toml_use_conda_for,
+                versions_dct=versions_dct,
+            )
 
         for extra in extras:
-            self.install_any("setup.cfg#extras_require#%s" % extra, setup_cfg.extras_require[extra],
-                             use_conda_for=toml_use_conda_for, versions_dct=versions_dct)
+            self.install_any(
+                "setup.cfg#extras_require#%s" % extra,
+                setup_cfg.extras_require[extra],
+                use_conda_for=toml_use_conda_for,
+                versions_dct=versions_dct,
+            )
 
         if phase is not None:
-            self.install_any(phase, phase_reqs, use_conda_for=toml_use_conda_for, versions_dct=versions_dct)
-
-    def install_any(self,
-                    phase_name: str,
-                    pkgs: Sequence[str],
-                    use_conda_for: Sequence[str] = (),
-                    versions_dct: Dict[str, str] = None,
-                    logfile: Union[bool, str, Path] = True,
-                    ):
+            self.install_any(
+                phase,
+                phase_reqs,
+                use_conda_for=toml_use_conda_for,
+                versions_dct=versions_dct,
+            )
+
+    def uses_conda(self):
+        return isinstance(self.virtualenv, nox.virtualenv.CondaEnv)
+
+    def install_any(
+        self,
+        phase_name: str,
+        pkgs: Sequence[str],
+        use_conda_for: Sequence[str] = (),
+        versions_dct: Dict[str, str] = None,
+        logfile: Union[bool, str, Path] = True,
+    ):
         """Install the `pkgs` provided with `session.install(*pkgs)`, except for those present in `use_conda_for`"""
 
-        nox_logger.debug("\nAbout to install *%s* requirements: %s.\n "
-                         "Conda pkgs are %s" % (phase_name, pkgs, use_conda_for))
+        nox_logger.debug(
+            "\nAbout to install *%s* requirements: %s.\n " "Conda pkgs are %s" % (phase_name, pkgs, use_conda_for)
+        )
 
         # use the provided versions dictionary to update the versions
         if versions_dct is None:
             versions_dct = dict()
-        pkgs = [pkg + versions_dct.get(pkg, "") for pkg in pkgs if versions_dct.get(pkg, "") != DONT_INSTALL]
+        pkgs = [pkg + _get_suffix(pkg, versions_dct) for pkg in pkgs if versions_dct.get(pkg, "") != DONT_INSTALL]
 
         # install on conda... if the session uses conda backend
-        if not isinstance(self.virtualenv, nox.virtualenv.CondaEnv):
+        if not self.uses_conda():
             conda_pkgs = []
         else:
             conda_pkgs = [pkg_req for pkg_req in pkgs if any(get_req_pkg_name(pkg_req) == c for c in use_conda_for)]
@@ -250,11 +289,7 @@ def install_any(self,
             nox_logger.info("[%s] Installing requirements with pip: %s" % (phase_name, pip_pkgs))
             self.install2(*pip_pkgs, logfile=logfile)
 
-    def conda_install2(self,
-                       *conda_pkgs,
-                       logfile: Union[bool, str, Path] = True,
-                       **kwargs
-                       ):
+    def conda_install2(self, *conda_pkgs, logfile: Union[bool, str, Path] = True, **kwargs):
         """
         Same as session.conda_install() but with support for `logfile`.
 
@@ -264,11 +299,7 @@ def conda_install2(self,
         """
         return self.conda_install(*conda_pkgs, logfile=logfile, **kwargs)
 
-    def install2(self,
-                 *pip_pkgs,
-                 logfile: Union[bool, str, Path] = True,
-                 **kwargs
-                 ):
+    def install2(self, *pip_pkgs, logfile: Union[bool, str, Path] = True, **kwargs):
         """
         Same as session.install() but with support for `logfile`.
 
@@ -280,7 +311,10 @@ def install2(self,
 
     def get_session_id(self):
         """Return the session id"""
-        return Path(self.bin).name
+        if self.uses_conda():
+            return Path(self.bin).name
+        else:
+            return Path(self.bin).parent.name
 
     @classmethod
     def is_power_session(cls, session: Session):
@@ -318,16 +352,23 @@ def read_pyproject_toml():
     """
     if os.path.exists("pyproject.toml"):
         import toml
+
         nox_logger.debug("\nA `pyproject.toml` file exists. Loading it.")
         pyproject = toml.load("pyproject.toml")
-        requires = pyproject['build-system']['requires']
-        conda_pkgs = pyproject['tool']['conda']['conda_packages']
+        requires = pyproject["build-system"]["requires"]
+        try:
+            conda_pkgs = pyproject["tool"]["conda"]["conda_packages"]
+        except KeyError:
+            conda_pkgs = dict()
         return requires, conda_pkgs
     else:
         raise FileNotFoundError("No `pyproject.toml` file exists. No dependency will be installed ...")
 
 
-SetupCfg = namedtuple('SetupCfg', ('setup_requires', 'install_requires', 'tests_requires', 'extras_require'))
+SetupCfg = namedtuple(
+    "SetupCfg",
+    ("setup_requires", "install_requires", "tests_requires", "extras_require"),
+)
 
 
 def read_setuptools_cfg():
@@ -336,12 +377,15 @@ def read_setuptools_cfg():
     """
     # see https://stackoverflow.com/a/30679041/7262247
     from setuptools import Distribution
+
     dist = Distribution()
     dist.parse_config_files()
-    return SetupCfg(setup_requires=dist.setup_requires,
-                    install_requires=dist.install_requires,
-                    tests_requires=dist.tests_require,
-                    extras_require=dist.extras_require)
+    return SetupCfg(
+        setup_requires=dist.setup_requires,
+        install_requires=dist.install_requires,
+        tests_requires=dist.tests_require,
+        extras_require=dist.extras_require,
+    )
 
 
 def get_req_pkg_name(r):
@@ -351,17 +395,18 @@ def get_req_pkg_name(r):
     "funcsigs;python<'3.5'" will return "funcsigs"
     "pytest>=3" will return "pytest"
     """
-    return r.replace('<', '=').replace('>', '=').replace(';', '=').split("=")[0]
+    return r.replace("<", "=").replace(">", "=").replace(";", "=").split("=")[0]
 
 
 # ------------- log related
 
 
-def with_logfile(logs_dir: Path,
-                 logfile_arg: str = "logfile",
-                 logfile_handler_arg: str = "logfilehandler"
-                 ):
-    """ A decorator to inject a logfile"""
+def with_logfile(
+    logs_dir: Path,
+    logfile_arg: str = "logfile",
+    logfile_handler_arg: str = "logfilehandler",
+):
+    """A decorator to inject a logfile"""
 
     def _decorator(f):
         # check the signature of f
@@ -379,7 +424,7 @@ def _decorator(f):
         @wraps(f, new_sig=new_sig)
         def _f_wrapper(**kwargs):
             # find the session arg
-            session = kwargs['session']  # type: Session
+            session = kwargs["session"]  # type: Session
 
             # add file handler to logger
             logfile = logs_dir / ("%s.log" % PowerSession.get_session_id(session))
@@ -418,8 +463,7 @@ def _f_wrapper(**kwargs):
     return _decorator
 
 
-def log_to_file(file_path: Union[str, Path]
-                ):
+def log_to_file(file_path: Union[str, Path]):
     """
     Closes and removes all file handlers from the nox logger,
     and add a new one to the provided file path
@@ -431,7 +475,7 @@ def log_to_file(file_path: Union[str, Path]
         if isinstance(h, logging.FileHandler):
             h.close()
             nox_logger.removeHandler(h)
-    fh = logging.FileHandler(str(file_path), mode='w')
+    fh = logging.FileHandler(str(file_path), mode="w")
     nox_logger.addHandler(fh)
     return fh
 
@@ -469,16 +513,18 @@ def remove_file_logger():
 
 # ------------ environment grid / parametrization related
 
-def nox_session_with_grid(python = None,
-                          py = None,
-                          envs: Mapping[str, Mapping[str, Any]] = None,
-                          reuse_venv: Optional[bool] = None,
-                          name: Optional[str] = None,
-                          venv_backend: Any = None,
-                          venv_params: Any = None,
-                          grid_param_name: str = None,
-                          **kwargs
-                          ):
+
+def nox_session_with_grid(
+    python=None,
+    py=None,
+    envs: Mapping[str, Mapping[str, Any]] = None,
+    reuse_venv: Optional[bool] = None,
+    name: Optional[str] = None,
+    venv_backend: Any = None,
+    venv_params: Any = None,
+    grid_param_name: str = None,
+    **kwargs
+):
     """
     Since nox is not yet capable to define a build matrix with python and parameters mixed in the same parametrize
     this implements it with a dirty hack.
@@ -490,13 +536,22 @@ def nox_session_with_grid(python = None,
     """
     if envs is None:
         # Fast track default to @nox.session
-        return nox.session(python=python, py=py, reuse_venv=reuse_venv, name=name, venv_backend=venv_backend,
-                           venv_params=venv_params, **kwargs)
+        return nox.session(
+            python=python,
+            py=py,
+            reuse_venv=reuse_venv,
+            name=name,
+            venv_backend=venv_backend,
+            venv_params=venv_params,
+            **kwargs
+        )
     else:
         # Current limitation : session param names can be 'python' or 'py' only
         if py is not None or python is not None:
-            raise ValueError("`python` session argument can not be provided both directly and through the "
-                             "`env` with `session_param_names`")
+            raise ValueError(
+                "`python` session argument can not be provided both directly and through the "
+                "`env` with `session_param_names`"
+            )
 
     # First examine the env and collect the parameter values for python
     all_python = []
@@ -530,8 +585,10 @@ def nox_session_with_grid(python = None,
             env_contents_names = set(env_params.keys())
         else:
             if env_contents_names != set(env_params.keys()):
-                raise ValueError("Environment %r parameters %r does not match parameters in the first environment: %r"
-                                 % (env_id, env_contents_names, set(env_params.keys())))
+                raise ValueError(
+                    "Environment %r parameters %r does not match parameters in the first environment: %r"
+                    % (env_id, env_contents_names, set(env_params.keys()))
+                )
 
     if has_parameter and not grid_param_name:
         raise ValueError("You must provide a grid parameter name when the env keys are tuples.")
@@ -541,7 +598,7 @@ def _decorator(f):
         for pyv, _param in product(all_python, all_params):
             if (pyv, _param) not in envs:
                 # create a dummy folder to avoid creating a useless venv ?
-                env_dir = Path(".nox") / ("%s-%s-%s-%s" % (s_name, pyv.replace('.', '-'), grid_param_name, _param))
+                env_dir = Path(".nox") / ("%s-%s-%s-%s" % (s_name, pyv.replace(".", "-"), grid_param_name, _param))
                 env_dir.mkdir(parents=True, exist_ok=True)
 
         # check the signature of f
@@ -564,7 +621,7 @@ def _decorator(f):
         @wraps(f, new_sig=new_sig)
         def _f_wrapper(**kwargs):
             # find the session arg
-            session = kwargs['session']    # type: Session
+            session = kwargs["session"]  # type: Session
 
             # get the versions to use for this environment
             try:
@@ -576,7 +633,9 @@ def _f_wrapper(**kwargs):
             except KeyError:
                 # Skip this session, it is a dummy one
                 nox_logger.warning(
-                    "Skipping configuration, this is not supported in python version %r" % session.python)
+                    "Skipping configuration, %r is not meant to be executed in this session for python version %r" %
+                    (grid_param if has_parameter else "this", session.python)
+                )
                 return
 
             # inject the parameters in the args:
@@ -588,8 +647,13 @@ def _f_wrapper(**kwargs):
         if has_parameter:
             _f_wrapper = nox.parametrize(grid_param_name, all_params)(_f_wrapper)
 
-        _f_wrapper = nox.session(python=all_python, reuse_venv=reuse_venv, name=name,
-                                 venv_backend=venv_backend, venv_params=venv_params)(_f_wrapper)
+        _f_wrapper = nox.session(
+            python=all_python,
+            reuse_venv=reuse_venv,
+            name=name,
+            venv_backend=venv_backend,
+            venv_params=venv_params,
+        )(_f_wrapper)
         return _f_wrapper
 
     return _decorator
@@ -598,8 +662,17 @@ def _f_wrapper(**kwargs):
 # ----------- other goodies
 
 
-def rm_file(folder: Union[str, Path]
-            ):
+def _get_suffix(pkg, versions_dct):
+    res = re.split("<|=|>|;", pkg.strip())
+    prefix = ""
+    suffix = versions_dct.get(res[0], "")
+    if len(res) > 1 and len(suffix) > 0:
+        prefix = ","
+
+    return prefix + suffix
+
+
+def rm_file(folder: Union[str, Path]):
     """Since on windows Path.unlink throws permission error sometimes, os.remove is preferred."""
     if isinstance(folder, str):
         folder = Path(folder)
@@ -609,8 +682,7 @@ def rm_file(folder: Union[str, Path]
         # Folders.site.unlink()  --> possible PermissionError
 
 
-def rm_folder(folder: Union[str, Path]
-              ):
+def rm_folder(folder: Union[str, Path]):
     """Since on windows Path.unlink throws permission error sometimes, shutil is preferred."""
     if isinstance(folder, str):
         folder = Path(folder)
@@ -624,6 +696,7 @@ def rm_folder(folder: Union[str, Path]
 
 
 import nox.popen as nox_popen_module
+
 orig_nox_popen = nox_popen_module.popen
 
 
@@ -707,20 +780,44 @@ def patched_popen(
 
             # define the async coroutines
             async def async_popen():
-                process = await asyncio.create_subprocess_exec(*args, env=env, stdout=asyncio.subprocess.PIPE,
-                                                               stderr=asyncio.subprocess.PIPE, **kwargs)
+                process = await asyncio.create_subprocess_exec(
+                    *args, env=env, stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE, **kwargs
+                )
 
                 # bind the out and err streams - see https://stackoverflow.com/a/59041913/7262247
                 # to mimic nox behaviour we only use a single capturing list
                 outlines = []
-                await asyncio.wait([
-                    # process out is only redirected to STDOUT if not silent
-                    _read_stream(process.stdout, lambda l: tee(l, sinklist=outlines, sinkstream=log_file_stream,
-                                                               quiet=silent, verbosepipe=sys.stdout)),
-                    # process err is always redirected to STDOUT (quiet=False) with a specific label
-                    _read_stream(process.stderr, lambda l: tee(l, sinklist=outlines, sinkstream=log_file_stream,
-                                                               quiet=False, verbosepipe=sys.stdout, label="ERR:"))
-                ])
+                await asyncio.wait(
+                    [
+                        asyncio.create_task(
+                            # process out is only redirected to STDOUT if not silent
+                            _read_stream(
+                                process.stdout,
+                                lambda l: tee(
+                                    l,
+                                    sinklist=outlines,
+                                    sinkstream=log_file_stream,
+                                    quiet=silent,
+                                    verbosepipe=sys.stdout,
+                                ),
+                            )
+                        ),
+                        # process err is always redirected to STDOUT (quiet=False) with a specific label
+                        asyncio.create_task(
+                            _read_stream(
+                                process.stderr,
+                                lambda l: tee(
+                                    l,
+                                    sinklist=outlines,
+                                    sinkstream=log_file_stream,
+                                    quiet=False,
+                                    verbosepipe=sys.stdout,
+                                    label="ERR:",
+                                ),
+                            ),
+                        ),
+                    ]
+                )
                 return_code = await process.wait()  # make sur the process has ended and retrieve its return code
                 return return_code, outlines
 
@@ -763,7 +860,7 @@ def tee(linebytes, sinklist, sinkstream, verbosepipe, quiet, label=""):
 
     append it to the sink, and if quiet=False, write it to pipe too.
     """
-    line = linebytes.decode('utf-8').rstrip()
+    line = linebytes.decode("utf-8").rstrip()
 
     if sinklist is not None:
         sinklist.append(line)
@@ -781,13 +878,14 @@ def patch_popen():
     nox_popen_module.popen = patched_popen
 
     from nox.command import popen
+
     if popen is not patched_popen:
         nox.command.popen = patched_popen
 
     # change event loop on windows
     # see https://stackoverflow.com/a/44639711/7262247
     # and https://docs.python.org/3/library/asyncio-platforms.html#subprocess-support-on-windows
-    if 'win32' in sys.platform:
+    if "win32" in sys.platform:
         # Windows specific event-loop policy & cmd
         asyncio.set_event_loop_policy(asyncio.WindowsProactorEventLoopPolicy())
         # cmds = [['C:/Windows/system32/HOSTNAME.EXE']]
diff --git a/noxfile-requirements.txt b/noxfile-requirements.txt
index 6fb3e1c..3b4ab32 100644
--- a/noxfile-requirements.txt
+++ b/noxfile-requirements.txt
@@ -1,3 +1,4 @@
+virtualenv
 nox
 toml
 makefun
diff --git a/noxfile.py b/noxfile.py
index 12ffb3a..6068373 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -1,3 +1,4 @@
+import argparse
 from itertools import product
 from json import dumps
 import logging
@@ -9,7 +10,7 @@
 # add parent folder to python path so that we can import noxfile_utils.py
 # note that you need to "pip install -r noxfile-requiterements.txt" for this file to work.
 sys.path.append(str(Path(__file__).parent / "ci_tools"))
-from nox_utils import PY27, PY37, PY36, PY35, PY38, PY39, PY310, power_session, rm_folder, rm_file, PowerSession  # noqa
+from nox_utils import PY27, PY37, PY36, PY35, PY38, PY39, PY310, PY311, PY312, power_session, rm_folder, rm_file, PowerSession, DONT_INSTALL  # noqa
 
 
 pkg_name = "makefun"
@@ -17,8 +18,9 @@
 gh_repo = "python-makefun"
 
 ENVS = {
-    # python 3.10 is not available on conda yet
-    # PY310: {"coverage": False, "pkg_specs": {"pip": ">19"}},
+    PY312: {"coverage": False, "pkg_specs": {"pip": ">19"}},
+    PY311: {"coverage": False, "pkg_specs": {"pip": ">19"}},
+    PY310: {"coverage": False, "pkg_specs": {"pip": ">19"}},
     PY39: {"coverage": False, "pkg_specs": {"pip": ">19"}},
     PY38: {"coverage": False, "pkg_specs": {"pip": ">19"}},
     PY27: {"coverage": False, "pkg_specs": {"pip": ">10"}},
@@ -30,10 +32,11 @@
 
 
 # set the default activated sessions, minimal for CI
-nox.options.sessions = ["tests", "flake8"]  # , "docs", "gh_pages"
+nox.options.sessions = ["tests", "flake8", "docs"]  # , "docs", "gh_pages"
+nox.options.error_on_missing_interpreters = True
 nox.options.reuse_existing_virtualenvs = True  # this can be done using -r
 # if platform.system() == "Windows":  >> always use this for better control
-nox.options.default_venv_backend = "conda"
+nox.options.default_venv_backend = "virtualenv"
 # os.environ["NO_COLOR"] = "True"  # nox.options.nocolor = True does not work
 # nox.options.verbose = True
 
@@ -95,13 +98,13 @@ def tests(session: PowerSession, coverage, pkg_specs):
 
     # list all (conda list alone does not work correctly on github actions)
     # session.run2("conda list")
-    conda_prefix = Path(session.bin)
-    if conda_prefix.name == "bin":
-        conda_prefix = conda_prefix.parent
-    session.run2("conda list", env={"CONDA_PREFIX": str(conda_prefix), "CONDA_DEFAULT_ENV": session.get_session_id()})
+    # conda_prefix = Path(session.bin)
+    # if conda_prefix.name == "bin":
+    #     conda_prefix = conda_prefix.parent
+    # session.run2("conda list", env={"CONDA_PREFIX": str(conda_prefix), "CONDA_DEFAULT_ENV": session.get_session_id()})
 
     # Fail if the assumed python version is not the actual one
-    session.run2("python ci_tools/check_python_version.py %s" % session.python)
+    session.run2(f"python ci_tools/check_python_version.py {session.python}")
 
     # check that it can be imported even from a different folder
     # Important: do not surround the command into double quotes as in the shell !
@@ -111,7 +114,6 @@ def tests(session: PowerSession, coverage, pkg_specs):
     if not coverage:
         # install self so that it is recognized by pytest
         session.run2("pip install . --no-deps")
-        # session.install(".", "--no-deps")
 
         # simple: pytest only
         session.run2("python -m pytest --cache-clear -v tests/")
@@ -125,23 +127,24 @@ def tests(session: PowerSession, coverage, pkg_specs):
                              versions_dct=pkg_specs)
 
         # --coverage + junit html reports
-        session.run2("coverage run --source src/{pkg_name} "
-                     "-m pytest --cache-clear --junitxml={test_xml} --html={test_html} -v tests/"
-                     "".format(pkg_name=pkg_name, test_xml=Folders.test_xml, test_html=Folders.test_html))
+        session.run2(f"coverage run --source src/{pkg_name} "
+                     f"-m pytest --cache-clear "
+                     f'--junitxml="{Folders.test_xml}" --html="{Folders.test_html}" '
+                     f"-v tests/")
         session.run2("coverage report")
-        session.run2("coverage xml -o {covxml}".format(covxml=Folders.coverage_xml))
-        session.run2("coverage html -d {dst}".format(dst=Folders.coverage_reports))
+        session.run2(f'coverage xml -o "{Folders.coverage_xml}"')
+        session.run2(f'coverage html -d "{Folders.coverage_reports}"')
         # delete this intermediate file, it is not needed anymore
         rm_file(Folders.coverage_intermediate_file)
 
         # --generates the badge for the test results and fail build if less than x% tests pass
         nox_logger.info("Generating badge for tests coverage")
         # Use our own package to generate the badge
-        session.run2("genbadge tests -i %s -o %s -t 100" % (Folders.test_xml, Folders.test_badge))
-        session.run2("genbadge coverage -i %s -o %s" % (Folders.coverage_xml, Folders.coverage_badge))
+        session.run2(f'genbadge tests -i "{Folders.test_xml}" -o "{Folders.test_badge}" -t 100')
+        session.run2(f'genbadge coverage -i "{Folders.coverage_xml}" -o "{Folders.coverage_badge}"')
 
 
-@power_session(python=PY38, logsdir=Folders.runlogs)
+@power_session(python=PY39, logsdir=Folders.runlogs)
 def flake8(session: PowerSession):
     """Launch flake8 qualimetry."""
 
@@ -158,28 +161,28 @@ def flake8(session: PowerSession):
     session.run("flake8", pkg_name, "--exit-zero", "--format=html", "--htmldir", str(Folders.flake8_reports),
                 "--statistics", "--tee", "--output-file", str(Folders.flake8_intermediate_file))
     # generate our badge
-    session.run2("genbadge flake8 -i %s -o %s" % (Folders.flake8_intermediate_file, Folders.flake8_badge))
+    session.run2(f'genbadge flake8 -i "{Folders.flake8_intermediate_file}" -o "{Folders.flake8_badge}"')
     rm_file(Folders.flake8_intermediate_file)
 
 
-@power_session(python=[PY37])
+@power_session(python=[PY39])
 def docs(session: PowerSession):
-    """Generates the doc and serves it on a local http server. Pass '-- build' to build statically instead."""
+    """Generates the doc. Pass '-- serve' to serve it on a local http server instead."""
 
     session.install_reqs(phase="docs", phase_reqs=["mkdocs-material", "mkdocs", "pymdown-extensions", "pygments"])
 
     if session.posargs:
-        # use posargs instead of "serve"
+        # use posargs instead of "build"
         session.run2("mkdocs %s" % " ".join(session.posargs))
     else:
-        session.run2("mkdocs serve")
+        session.run2("mkdocs build")
 
 
-@power_session(python=[PY37])
+@power_session(python=[PY39])
 def publish(session: PowerSession):
     """Deploy the docs+reports on github pages. Note: this rebuilds the docs"""
 
-    session.install_reqs(phase="mkdocs", phase_reqs=["mkdocs-material", "mkdocs", "pymdown-extensions", "pygments"])
+    session.install_reqs(phase="publish", phase_reqs=["mkdocs-material", "mkdocs", "pymdown-extensions", "pygments"])
 
     # possibly rebuild the docs in a static way (mkdocs serve does not build locally)
     session.run2("mkdocs build")
@@ -200,7 +203,7 @@ def publish(session: PowerSession):
     # session.run2('codecov -t %s -f %s' % (codecov_token, Folders.coverage_xml))
 
 
-@power_session(python=[PY37])
+@power_session(python=[PY39])
 def release(session: PowerSession):
     """Create a release on github corresponding to the latest tag"""
 
@@ -249,10 +252,9 @@ def my_scheme(version_):
 
     # create the github release
     session.install_reqs(phase="release", phase_reqs=["click", "PyGithub"])
-    session.run2("python ci_tools/github_release.py -s {gh_token} "
-                 "--repo-slug {gh_org}/{gh_repo} -cf ./docs/changelog.md "
-                 "-d https://{gh_org}.github.io/{gh_repo}/changelog {tag}"
-                 "".format(gh_token=gh_token, gh_org=gh_org, gh_repo=gh_repo, tag=current_tag))
+    session.run2(f"python ci_tools/github_release.py -s {gh_token} "
+                 f"--repo-slug {gh_org}/{gh_repo} -cf ./docs/changelog.md "
+                 f"-d https://{gh_org}.github.io/{gh_repo}/changelog {current_tag}")
 
 
 @nox.session(python=False)
@@ -261,19 +263,36 @@ def gha_list(session):
 
     # see https://stackoverflow.com/q/66747359/7262247
 
+    # The options
+    parser = argparse.ArgumentParser()
+    parser.add_argument("-s", "--session", help="The nox base session name")
+    parser.add_argument(
+        "-v",
+        "--with_version",
+        action="store_true",
+        default=False,
+        help="Return a list of lists where the first element is the python version and the second the nox session.",
+    )
+    additional_args = parser.parse_args(session.posargs)
+
     # get the desired base session to generate the list for
-    if len(session.posargs) != 1:
-        raise ValueError("This session has a mandatory argument: <base_session_name>")
-    session_func = globals()[session.posargs[0]]
+    session_func = globals()[additional_args.session]
 
     # list all sessions for this base session
     try:
         session_func.parametrize
     except AttributeError:
-        sessions_list = ["%s-%s" % (session_func.__name__, py) for py in session_func.python]
+        if additional_args.with_version:
+            sessions_list = [{"python": py, "session": f"{session_func.__name__}-{py}"} for py in session_func.python]
+        else:
+            sessions_list = [f"{session_func.__name__}-{py}" for py in session_func.python]
     else:
-        sessions_list = ["%s-%s(%s)" % (session_func.__name__, py, param)
-                         for py, param in product(session_func.python, session_func.parametrize)]
+        if additional_args.with_version:
+            sessions_list = [{"python": py, "session": f"{session_func.__name__}-{py}({param})"}
+                             for py, param in product(session_func.python, session_func.parametrize)]
+        else:
+            sessions_list = [f"{session_func.__name__}-{py}({param})"
+                             for py, param in product(session_func.python, session_func.parametrize)]
 
     # print the list so that it can be caught by GHA.
     # Note that json.dumps is optional since this is a list of string.
diff --git a/pyproject.toml b/pyproject.toml
index 5116021..056a1e4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -2,18 +2,9 @@
 requires = [
     "setuptools>=39.2",
     "setuptools_scm",
+    "wheel"
 ]
 build-backend = "setuptools.build_meta"
 
 # pip: no ! does not work in old python 2.7 and not recommended here
 # https://setuptools.readthedocs.io/en/latest/userguide/quickstart.html#basic-use
-
-[tool.conda]
-# Declare that the following packages should be installed with conda instead of pip
-# Note: this includes packages declared everywhere, here and in setup.cfg
-conda_packages = [
-    "setuptools",
-    "wheel",
-    "pip"
-]
-# pytest: not with conda ! does not work in old python 2.7 and 3.5
diff --git a/setup.cfg b/setup.cfg
index 1b2eb49..fbbbcba 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -27,12 +27,14 @@ classifiers =
     Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
+    Programming Language :: Python :: 3.10
+    Programming Language :: Python :: 3.11
+    Programming Language :: Python :: 3.12
 
 [options]
 # one day these will be able to come from requirement files, see https://github.com/pypa/setuptools/issues/1951. But will it be better ?
 setup_requires =
     setuptools_scm
-    pytest-runner
 install_requires =
     # note: do not use double quotes in these, this triggers a weird bug in PyCharm in debug mode only
     funcsigs;python_version<'3.3'