diff --git a/src/pyquickhelper/ipythonhelper/helper_in_notebook.py b/src/pyquickhelper/ipythonhelper/helper_in_notebook.py
index bf1667f21..bc430d2ab 100644
--- a/src/pyquickhelper/ipythonhelper/helper_in_notebook.py
+++ b/src/pyquickhelper/ipythonhelper/helper_in_notebook.py
@@ -5,17 +5,8 @@
 
 .. versionadded:: 1.1
 """
-import os
-import sys
 from IPython.display import Javascript, HTML
 
-try:
-    from notebook.services.config import ConfigManager
-except ImportError:
-    from IPython.html.services.config import ConfigManager
-
-from .notebook_exception import InNotebookException
-
 
 def store_notebook_path(name="theNotebook"):
     """
diff --git a/src/pyquickhelper/pycode/windows_scripts.py b/src/pyquickhelper/pycode/windows_scripts.py
index 7d4f3b445..334bf6b90 100644
--- a/src/pyquickhelper/pycode/windows_scripts.py
+++ b/src/pyquickhelper/pycode/windows_scripts.py
@@ -596,6 +596,7 @@
         "numpy",
         "dateutils",
         "IPython",
+        "jupyter",
         "matplotlib",
         "sphinx",
         "pandas",