Add debug help for the user site path

jupyter_core/command.py

@@ -11,6 +11,7 @@
 import json
 import os
 from shutil import which
+import site
 import sys
 import sysconfig
 from subprocess import Popen
@@ -257,6 +258,11 @@ def main():
                     else:
                         print("JUPYTER_CONFIG_DIR is not set, so we use the default user-level config directory")
 
+                    if site.ENABLE_USER_SITE:
+                        print(f"Python's site.ENABLE_USER_SITE is True, so we add the user site directory '{site.getuserbase()}'")
+                    else:
+                        print("Python's site.ENABLE_USER_SITE is False, so we do not add the Python site user directory")
+
                     # data path list
                     if env.get('JUPYTER_PATH'):
                         print(f"JUPYTER_PATH is set to '{env.get('JUPYTER_PATH')}', which is prepended to the data paths")