diff --git a/.circleci/config.yml b/.circleci/config.yml
index d676557..9e597ad 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -2,7 +2,7 @@ version: 2
 jobs:
   build:
     docker:
-      - image: circleci/python:3.7.0
+      - image: circleci/python:3.7.2
     
     working_directory: ~/repo
     
@@ -72,12 +72,14 @@ jobs:
           name: run tests
           command: |
             . venv/bin/activate
+            export PYTHONPATH=src
             python setup.py unittests
 
       - run:
           name: wheel
           command: |
             . venv/bin/activate
+            export PYTHONPATH=src
             python setup.py bdist_wheel
             mkdir -p test-reports/dist
             cp dist/*.whl test-reports/dist
@@ -86,6 +88,7 @@ jobs:
           name: documentation
           command: |
             . venv/bin/activate
+            export PYTHONPATH=src
             python setup.py build_sphinx
             
       - run:
@@ -96,4 +99,4 @@ jobs:
             
       - store_artifacts:
           path: test-reports
-          destination: test-reports
\ No newline at end of file
+          destination: test-reports
diff --git a/.local.jenkins.lin.yml b/.local.jenkins.lin.yml
index 4f3dd5e..fc3293c 100644
--- a/.local.jenkins.lin.yml
+++ b/.local.jenkins.lin.yml
@@ -2,7 +2,7 @@
 language: python
 
 python:
-  - { PATH: "{{Python37}}", VERSION: 3.7, DIST: std, PYINT: python3.7 }
+  - { PATH: "{{Python37}}", VERSION: 3.7, DIST: std, PYINT: python3.7, PYTHONPATH: src }
   
 virtualenv:
   - path: {{ospathjoin(root_path, pickname("$NAME_JENKINS", project_name + "_$VERSION_$DIST_$NAME"), "_venv")}}
diff --git a/.local.jenkins.win.yml b/.local.jenkins.win.yml
index 5f7fc48..c0ef1d3 100644
--- a/.local.jenkins.win.yml
+++ b/.local.jenkins.win.yml
@@ -1,6 +1,6 @@
 language: python
 python:
-  - { PATH: "{{replace(Python37, '\\', '\\\\')}}", VERSION: 3.7, DIST: std }
+  - { PATH: "{{replace(Python37, '\\', '\\\\')}}", VERSION: 3.7, DIST: std, PYTHONPATH: src }
 virtualenv:
   - path: {{ospathjoin(root_path, pickname("%NAME_JENKINS%", project_name + "_%VERSION%_%DIST%_%NAME%"), "_venv")}}
 install:
diff --git a/.travis.yml b/.travis.yml
index 9d56430..b066a61 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -25,5 +25,6 @@ install:
   - pip install -r requirements.txt
   - pip install -U git+https://github.com/quantopian/qgrid --no-deps  
   # - pip install hg+http://bitbucket.org/pygame/pygame
+  - export PYTHONPATH=src
 script:
   - python setup.py unittests
diff --git a/_doc/sphinxdoc/source/conf.py b/_doc/sphinxdoc/source/conf.py
index 1bde517..032f18d 100644
--- a/_doc/sphinxdoc/source/conf.py
+++ b/_doc/sphinxdoc/source/conf.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 import sys
 import os
-import sphinx_modern_theme_modified
+import sphinx_readable_theme
 from pyquickhelper.helpgen.default_conf import set_sphinx_variables, get_default_stylesheet
 
 sys.path.insert(0, os.path.abspath(os.path.join(os.path.split(__file__)[0])))
@@ -9,7 +9,7 @@
     os.path.dirname(__file__)), "phdoc_templates")
 
 set_sphinx_variables(__file__, "mathenjeu", "Xavier Dupré", 2019,
-                     "sphinx_modern_theme_modified", sphinx_modern_theme_modified.get_html_theme_path(),
+                     "readable", sphinx_readable_theme.get_html_theme_path(),
                      locals(), extlinks=dict(
                          issue=('https://github.com/sdpython/mathenjeu/issues/%s', 'issue')),
                      title="Exercices via une application web", book=True, nblayout='table')
diff --git a/_unittests/run_unittests.py b/_unittests/run_unittests.py
deleted file mode 100644
index aee4423..0000000
--- a/_unittests/run_unittests.py
+++ /dev/null
@@ -1,18 +0,0 @@
-"""
-@file
-@brief run all unit tests
-"""
-
-
-def main():
-    """
-    Runs the unit tests.
-    """
-    from pyquickhelper.loghelper import fLOG
-    from pyquickhelper.pycode import main_wrapper_tests
-    fLOG(OutputPrint=True)
-    main_wrapper_tests(__file__)
-
-
-if __name__ == "__main__":
-    main()
diff --git a/_unittests/ut_activities/test_repr.py b/_unittests/ut_activities/test_repr.py
index 1a26c58..3be6ed9 100644
--- a/_unittests/ut_activities/test_repr.py
+++ b/_unittests/ut_activities/test_repr.py
@@ -1,29 +1,10 @@
 """
 @brief      test log(time=1s)
 """
-
-import sys
-import os
 import unittest
 from pyquickhelper.pycode import ExtTestCase
-
-
-try:
-    import src
-except ImportError:
-    path = os.path.normpath(
-        os.path.abspath(
-            os.path.join(
-                os.path.split(__file__)[0],
-                "..",
-                "..")))
-    if path not in sys.path:
-        sys.path.append(path)
-    import src
-
-
-from src.mathenjeu.activities import Display
-from src.mathenjeu.tests import simple_french_qcm
+from mathenjeu.activities import Display
+from mathenjeu.tests import simple_french_qcm
 
 
 class TestRepr(ExtTestCase):
diff --git a/_unittests/ut_apps/test_qcm_app.py b/_unittests/ut_apps/test_qcm_app.py
index d75ff87..50b0fb8 100644
--- a/_unittests/ut_apps/test_qcm_app.py
+++ b/_unittests/ut_apps/test_qcm_app.py
@@ -2,29 +2,11 @@
 """
 @brief      test log(time=33s)
 """
-
-import sys
-import os
 import unittest
 from starlette.testclient import TestClient
 from uvicorn.middleware.proxy_headers import ProxyHeadersMiddleware
 from pyquickhelper.pycode import get_temp_folder, ExtTestCase
-
-
-try:
-    import src
-except ImportError:
-    path = os.path.normpath(
-        os.path.abspath(
-            os.path.join(
-                os.path.split(__file__)[0],
-                "..",
-                "..")))
-    if path not in sys.path:
-        sys.path.append(path)
-    import src
-
-from src.mathenjeu.cli import create_qcm_local_app
+from mathenjeu.cli import create_qcm_local_app
 
 
 class TestQcmApp(ExtTestCase):
diff --git a/_unittests/ut_apps/test_static_app.py b/_unittests/ut_apps/test_static_app.py
index 069eb65..9e8e28e 100644
--- a/_unittests/ut_apps/test_static_app.py
+++ b/_unittests/ut_apps/test_static_app.py
@@ -2,29 +2,12 @@
 """
 @brief      test log(time=33s)
 """
-
-import sys
 import os
 import unittest
 from starlette.testclient import TestClient
 from uvicorn.middleware.proxy_headers import ProxyHeadersMiddleware
 from pyquickhelper.pycode import get_temp_folder, ExtTestCase
-
-
-try:
-    import src
-except ImportError:
-    path = os.path.normpath(
-        os.path.abspath(
-            os.path.join(
-                os.path.split(__file__)[0],
-                "..",
-                "..")))
-    if path not in sys.path:
-        sys.path.append(path)
-    import src
-
-from src.mathenjeu.cli import create_static_local_app
+from mathenjeu.cli import create_static_local_app
 
 
 class TestStaticApp(ExtTestCase):
diff --git a/_unittests/ut_cli/test_cert.py b/_unittests/ut_cli/test_cert.py
index 3dfcef5..cc38d82 100644
--- a/_unittests/ut_cli/test_cert.py
+++ b/_unittests/ut_cli/test_cert.py
@@ -1,36 +1,15 @@
 """
 @brief      test tree node (time=2s)
 """
-
-
-import sys
 import os
 import unittest
 from pyquickhelper.pycode import get_temp_folder, ExtTestCase
 from pyquickhelper.loghelper import BufferedPrint
-
-try:
-    import src
-except ImportError:
-    path = os.path.normpath(
-        os.path.abspath(
-            os.path.join(
-                os.path.split(__file__)[0],
-                "..",
-                "..")))
-    if path not in sys.path:
-        sys.path.append(path)
-    import src
-
-from src.mathenjeu.__main__ import main
+from mathenjeu.__main__ import main
 
 
 class TestCertCli(ExtTestCase):
 
-    def test_src_import(self):
-        """for pylint"""
-        self.assertTrue(src is not None)
-
     def test_cert(self):
         st = BufferedPrint()
         main(args=['create_self_signed_cert', '--help'], fLOG=st.fprint)
diff --git a/_unittests/ut_cli/test_cli_helper.py b/_unittests/ut_cli/test_cli_helper.py
index f3401c6..e071903 100644
--- a/_unittests/ut_cli/test_cli_helper.py
+++ b/_unittests/ut_cli/test_cli_helper.py
@@ -1,36 +1,14 @@
 """
 @brief      test tree node (time=1s)
 """
-
-
-import sys
-import os
 import unittest
 from pyquickhelper.pycode import ExtTestCase
-
-try:
-    import src
-except ImportError:
-    path = os.path.normpath(
-        os.path.abspath(
-            os.path.join(
-                os.path.split(__file__)[0],
-                "..",
-                "..")))
-    if path not in sys.path:
-        sys.path.append(path)
-    import src
-
-from src.mathenjeu.activities import ActivityGroup
-from src.mathenjeu.cli.cli_helper import build_games
+from mathenjeu.activities import ActivityGroup
+from mathenjeu.cli.cli_helper import build_games
 
 
 class TestCliHelper(ExtTestCase):
 
-    def test_src_import(self):
-        """for pylint"""
-        self.assertTrue(src is not None)
-
     def test_local_app(self):
         script = "src.mathenjeu.tests.qcms.py:simple_french_qcm,Maths et QCM,0"
         games, fct = build_games(script, None)
diff --git a/_unittests/ut_cli/test_qcm_https_app.py b/_unittests/ut_cli/test_qcm_https_app.py
index c6995e9..ddeeed1 100644
--- a/_unittests/ut_cli/test_qcm_https_app.py
+++ b/_unittests/ut_cli/test_qcm_https_app.py
@@ -1,34 +1,15 @@
 """
 @brief      test tree node (time=2s)
 """
-import sys
 import os
 import unittest
 from pyquickhelper.pycode import get_temp_folder, ExtTestCase
 from pyquickhelper.loghelper import BufferedPrint
-
-try:
-    import src
-except ImportError:
-    path = os.path.normpath(
-        os.path.abspath(
-            os.path.join(
-                os.path.split(__file__)[0],
-                "..",
-                "..")))
-    if path not in sys.path:
-        sys.path.append(path)
-    import src
-
-from src.mathenjeu.__main__ import main
+from mathenjeu.__main__ import main
 
 
 class TestQcmHttpsAppCli(ExtTestCase):
 
-    def test_src_import(self):
-        """for pylint"""
-        self.assertTrue(src is not None)
-
     def test_https_webapp(self):
         st = BufferedPrint()
         main(args=['qcm_https', '--help'], fLOG=st.fprint)
diff --git a/_unittests/ut_cli/test_qcm_local_app.py b/_unittests/ut_cli/test_qcm_local_app.py
index db3edf2..d1995fb 100644
--- a/_unittests/ut_cli/test_qcm_local_app.py
+++ b/_unittests/ut_cli/test_qcm_local_app.py
@@ -1,35 +1,13 @@
 """
 @brief      test tree node (time=2s)
 """
-
-
-import sys
-import os
 import unittest
 from pyquickhelper.loghelper import BufferedPrint
-
-try:
-    import src
-except ImportError:
-    path = os.path.normpath(
-        os.path.abspath(
-            os.path.join(
-                os.path.split(__file__)[0],
-                "..",
-                "..")))
-    if path not in sys.path:
-        sys.path.append(path)
-    import src
-
-from src.mathenjeu.__main__ import main
+from mathenjeu.__main__ import main
 
 
 class TestQcmLocalAppCli(unittest.TestCase):
 
-    def test_src_import(self):
-        """for pylint"""
-        self.assertTrue(src is not None)
-
     def test_local_app(self):
         st = BufferedPrint()
         main(args=[], fLOG=st.fprint)
diff --git a/_unittests/ut_cli/test_static_https_app.py b/_unittests/ut_cli/test_static_https_app.py
index eb7ce54..b65a9be 100644
--- a/_unittests/ut_cli/test_static_https_app.py
+++ b/_unittests/ut_cli/test_static_https_app.py
@@ -1,34 +1,15 @@
 """
 @brief      test tree node (time=2s)
 """
-import sys
 import os
 import unittest
 from pyquickhelper.pycode import get_temp_folder, ExtTestCase
 from pyquickhelper.loghelper import BufferedPrint
-
-try:
-    import src
-except ImportError:
-    path = os.path.normpath(
-        os.path.abspath(
-            os.path.join(
-                os.path.split(__file__)[0],
-                "..",
-                "..")))
-    if path not in sys.path:
-        sys.path.append(path)
-    import src
-
-from src.mathenjeu.__main__ import main
+from mathenjeu.__main__ import main
 
 
 class TestQcmHttpsAppCli(ExtTestCase):
 
-    def test_src_import(self):
-        """for pylint"""
-        self.assertTrue(src is not None)
-
     def test_https_webapp(self):
         st = BufferedPrint()
         main(args=['qcm_https', '--help'], fLOG=st.fprint)
diff --git a/_unittests/ut_cli/test_static_local_app.py b/_unittests/ut_cli/test_static_local_app.py
index 9c3d1d5..74a4235 100644
--- a/_unittests/ut_cli/test_static_local_app.py
+++ b/_unittests/ut_cli/test_static_local_app.py
@@ -1,35 +1,13 @@
 """
 @brief      test tree node (time=2s)
 """
-
-
-import sys
-import os
 import unittest
 from pyquickhelper.loghelper import BufferedPrint
-
-try:
-    import src
-except ImportError:
-    path = os.path.normpath(
-        os.path.abspath(
-            os.path.join(
-                os.path.split(__file__)[0],
-                "..",
-                "..")))
-    if path not in sys.path:
-        sys.path.append(path)
-    import src
-
-from src.mathenjeu.__main__ import main
+from mathenjeu.__main__ import main
 
 
 class TestStaticLocalAppCli(unittest.TestCase):
 
-    def test_src_import(self):
-        """for pylint"""
-        self.assertTrue(src is not None)
-
     def test_local_app(self):
         st = BufferedPrint()
         main(args=[], fLOG=st.fprint)
diff --git a/_unittests/ut_datalog/test_datalog.py b/_unittests/ut_datalog/test_datalog.py
index 88a91c2..e85154b 100644
--- a/_unittests/ut_datalog/test_datalog.py
+++ b/_unittests/ut_datalog/test_datalog.py
@@ -1,37 +1,16 @@
 """
 @brief      test tree node (time=2s)
 """
-
-
-import sys
 import os
 import unittest
 import datetime
 import pandas
 from pyquickhelper.pycode import ExtTestCase
-
-try:
-    import src
-except ImportError:
-    path = os.path.normpath(
-        os.path.abspath(
-            os.path.join(
-                os.path.split(__file__)[0],
-                "..",
-                "..")))
-    if path not in sys.path:
-        sys.path.append(path)
-    import src
-
-from src.mathenjeu.datalog import enumerate_qcmlog, enumerate_qcmlogdf
+from mathenjeu.datalog import enumerate_qcmlog, enumerate_qcmlogdf
 
 
 class TestLocalAppCli(ExtTestCase):
 
-    def test_src_import(self):
-        """for pylint"""
-        self.assertTrue(src is not None)
-
     def test_datalog(self):
         this = os.path.abspath(os.path.dirname(__file__))
         logs = [os.path.join(this, "data", "QCMApp.log")]
diff --git a/_unittests/ut_documentation/test_run_notebooks.py b/_unittests/ut_documentation/test_run_notebooks.py
index 62c86d9..6a87730 100644
--- a/_unittests/ut_documentation/test_run_notebooks.py
+++ b/_unittests/ut_documentation/test_run_notebooks.py
@@ -2,29 +2,12 @@
 """
 @brief      test log(time=21s)
 """
-
-import sys
 import os
 import unittest
 from pyquickhelper.loghelper import fLOG
 from pyquickhelper.ipythonhelper import test_notebook_execution_coverage
 import jyquickhelper
-
-
-try:
-    import src
-except ImportError:
-    path = os.path.normpath(
-        os.path.abspath(
-            os.path.join(
-                os.path.split(__file__)[0],
-                "..",
-                "..")))
-    if path not in sys.path:
-        sys.path.append(path)
-    import src
-
-import src.mathenjeu
+import mathenjeu
 
 
 class TestRunNotebooksPython(unittest.TestCase):
@@ -39,7 +22,7 @@ def test_notebook_donnees_anonymisees(self):
             self._testMethodName,
             OutputPrint=__name__ == "__main__")
 
-        self.assertTrue(src.mathenjeu is not None)
+        self.assertTrue(mathenjeu is not None)
         folder = os.path.join(os.path.dirname(__file__),
                               "..", "..", "_doc", "notebooks")
         test_notebook_execution_coverage(__file__, "donnees_anonymisees", folder, 'mathenjeu',
@@ -51,7 +34,7 @@ def test_notebook_example_logs(self):
             self._testMethodName,
             OutputPrint=__name__ == "__main__")
 
-        self.assertTrue(src.mathenjeu is not None)
+        self.assertTrue(mathenjeu is not None)
         self.assertTrue(jyquickhelper is not None)
         folder = os.path.join(os.path.dirname(__file__),
                               "..", "..", "_doc", "notebooks")
diff --git a/_unittests/ut_module/test___init__.py b/_unittests/ut_module/test___init__.py
index 6d0971d..f469596 100644
--- a/_unittests/ut_module/test___init__.py
+++ b/_unittests/ut_module/test___init__.py
@@ -1,28 +1,9 @@
 """
 @brief      test log(time=0s)
 """
-
-import sys
-import os
 import unittest
 from pyquickhelper.loghelper import fLOG
-
-
-try:
-    import src
-except ImportError:
-    path = os.path.normpath(
-        os.path.abspath(
-            os.path.join(
-                os.path.split(__file__)[0],
-                "..",
-                "..")))
-    if path not in sys.path:
-        sys.path.append(path)
-    import src
-
-
-from src.mathenjeu import check, _setup_hook
+from mathenjeu import check, _setup_hook
 
 
 class TestInit(unittest.TestCase):
diff --git a/_unittests/ut_module/test_code_style.py b/_unittests/ut_module/test_code_style.py
index 33bc47f..87dfd87 100644
--- a/_unittests/ut_module/test_code_style.py
+++ b/_unittests/ut_module/test_code_style.py
@@ -10,20 +10,6 @@
 from pyquickhelper.pycode import check_pep8
 
 
-try:
-    import src
-except ImportError:
-    path = os.path.normpath(
-        os.path.abspath(
-            os.path.join(
-                os.path.split(__file__)[0],
-                "..",
-                "..")))
-    if path not in sys.path:
-        sys.path.append(path)
-    import src
-
-
 class TestCodeStyle(unittest.TestCase):
 
     def test_code_style_src(self):
diff --git a/_unittests/ut_module/test_convert_notebooks.py b/_unittests/ut_module/test_convert_notebooks.py
index 68fd4ce..09fe244 100644
--- a/_unittests/ut_module/test_convert_notebooks.py
+++ b/_unittests/ut_module/test_convert_notebooks.py
@@ -1,8 +1,6 @@
 """
 @brief      test log(time=0s)
 """
-
-import sys
 import os
 import unittest
 from pyquickhelper.loghelper import fLOG
@@ -10,20 +8,6 @@
 from pyquickhelper.ipythonhelper import upgrade_notebook, remove_execution_number
 
 
-try:
-    import src
-except ImportError:
-    path = os.path.normpath(
-        os.path.abspath(
-            os.path.join(
-                os.path.split(__file__)[0],
-                "..",
-                "..")))
-    if path not in sys.path:
-        sys.path.append(path)
-    import src
-
-
 class TestConvertNotebooks(unittest.TestCase):
 
     def test_convert_notebooks(self):
diff --git a/_unittests/ut_module/test_readme.py b/_unittests/ut_module/test_readme.py
index 5bb9404..c9d365b 100644
--- a/_unittests/ut_module/test_readme.py
+++ b/_unittests/ut_module/test_readme.py
@@ -1,26 +1,11 @@
 """
 @brief      test tree node (time=50s)
 """
-
-import sys
 import os
 import unittest
 from pyquickhelper.loghelper import fLOG
 from pyquickhelper.pycode import get_temp_folder
 
-try:
-    import src
-except ImportError:
-    path = os.path.normpath(
-        os.path.abspath(
-            os.path.join(
-                os.path.split(__file__)[0],
-                "..",
-                "..")))
-    if path not in sys.path:
-        sys.path.append(path)
-    import src
-
 
 class TestReadme(unittest.TestCase):
 
diff --git a/_unittests/ut_module/test_version.py b/_unittests/ut_module/test_version.py
deleted file mode 100644
index 4dd01ec..0000000
--- a/_unittests/ut_module/test_version.py
+++ /dev/null
@@ -1,46 +0,0 @@
-"""
-@brief      test log(time=0s)
-"""
-
-import sys
-import os
-import unittest
-import re
-
-
-try:
-    import src
-except ImportError:
-    path = os.path.normpath(
-        os.path.abspath(
-            os.path.join(
-                os.path.split(__file__)[0],
-                "..",
-                "..")))
-    if path not in sys.path:
-        sys.path.append(path)
-    import src
-
-from src.mathenjeu import __version__
-
-
-class TestVersion (unittest.TestCase):
-
-    def test_version(self):
-        setup = os.path.join(
-            os.path.split(__file__)[0],
-            "..",
-            "..",
-            "setup.py")
-        with open(setup, "r") as f:
-            c = f.read()
-        reg = re.compile("sversion *= \\\"(.*)\\\"")
-
-        f = reg.findall(c)
-        if len(f) != 1:
-            raise Exception("not only one version")
-        assert f[0] == __version__
-
-
-if __name__ == "__main__":
-    unittest.main()
diff --git a/_unittests/ut_tests/test_activity_group.py b/_unittests/ut_tests/test_activity_group.py
index 2b390d8..b150b0f 100644
--- a/_unittests/ut_tests/test_activity_group.py
+++ b/_unittests/ut_tests/test_activity_group.py
@@ -1,28 +1,9 @@
 """
 @brief      test log(time=1s)
 """
-
-import sys
-import os
 import unittest
 from pyquickhelper.pycode import ExtTestCase
-
-
-try:
-    import src
-except ImportError:
-    path = os.path.normpath(
-        os.path.abspath(
-            os.path.join(
-                os.path.split(__file__)[0],
-                "..",
-                "..")))
-    if path not in sys.path:
-        sys.path.append(path)
-    import src
-
-
-from src.mathenjeu.tests import simple_french_qcm, ml_french_qcm
+from mathenjeu.tests import simple_french_qcm, ml_french_qcm
 
 
 class TestaTestsctivityGroup(ExtTestCase):
diff --git a/appveyor.yml b/appveyor.yml
index 347cc4e..1a9a704 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -25,6 +25,7 @@ install:
   - "%PYTHON%\\Scripts\\pip install git+https://github.com/sdpython/nbconvert.git@fixes"
   - "%PYTHON%\\Scripts\\pymy_install3 --task=tool --source=zip graphviz"
   - "set PATH=%PATH%;C:\\projects\\mathenjeu\\build\\update_modules\\Graphviz\\bin"
+  - set PYTHONPATH=src
 build: off
 
 test_script:
diff --git a/build_script.bat b/build_script.bat
index 1ee9acb..7688939 100644
--- a/build_script.bat
+++ b/build_script.bat
@@ -5,12 +5,12 @@ set pythonexe="%1"
 goto custom_python:
 
 :default_value_python:
-set pythonexe="c:\Python370_x64\python.exe"
+set pythonexe="c:\Python372_x64\python.exe"
+if not exist %pythonexe% set pythonexe="c:\Python370_x64\python.exe"
 if not exist %pythonexe% set pythonexe="c:\Python366_x64\python.exe"
 if not exist %pythonexe% set pythonexe="c:\Python365_x64\python.exe"
 if not exist %pythonexe% set pythonexe="c:\Python364_x64\python.exe"
 if not exist %pythonexe% set pythonexe="c:\Python363_x64\python.exe"
-if not exist %pythonexe% set pythonexe="c:\Python36_x64\python.exe"
 :custom_python:
 @echo [python] %pythonexe%
 %pythonexe% -u setup.py build_script
diff --git a/requirements.txt b/requirements.txt
index 47b4820..9413f0f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,8 @@ missingno
 pyopenssl
 pyquickhelper>=1.8.2924
 python-multipart
-sphinx_modern_theme_modified
+sphinx
+sphinx_readable_theme
 sphinxcontrib.blockdiag
 starlette>=0.11.0
 ujson
diff --git a/setup.py b/setup.py
index 7d06bec..5460926 100644
--- a/setup.py
+++ b/setup.py
@@ -9,7 +9,6 @@
 #########
 
 project_var_name = "mathenjeu"
-sversion = "0.1"
 versionPython = "%s.%s" % (sys.version_info.major, sys.version_info.minor)
 path = "Lib/site-packages/" + project_var_name
 readme = 'README.rst'
@@ -153,6 +152,7 @@ def write_version():
         from pyquickhelper.pycode import process_standard_options_for_setup_help
         process_standard_options_for_setup_help(sys.argv)
     from pyquickhelper.pycode import clean_readme
+    from mathenjeu import __version__ as sversion
     long_description = clean_readme(long_description)
 
     setup(
diff --git a/src/__init__.py b/src/__init__.py
deleted file mode 100644
index e69de29..0000000
diff --git a/src/mathenjeu/__init__.py b/src/mathenjeu/__init__.py
index 81dc79e..74df4d1 100644
--- a/src/mathenjeu/__init__.py
+++ b/src/mathenjeu/__init__.py
@@ -5,7 +5,7 @@
 Building an web application with QCM.
 """
 
-__version__ = "0.1"
+__version__ = "0.2"
 __author__ = "Xavier Dupré"
 __github__ = "https://github.com/sdpython/mathenjeu"
 __url__ = "http://www.xavierdupre.fr/app/mathenjeu/helpsphinx/index.html"