anchor.diff:  echo finish install of nteract_on_jupyter (2018-12-27)
   rem * ================= 
   if exist  "%WINPYDIR%\Lib\site-packages\nteract_on_jupyter" "%WINPYDIR%\Scripts\jupyter.exe" serverextension enable nteract_on_jupyter
  -if exist  "%WINPYDIR%\Lib\site-packages\nteract_on_jupyter" "%WINPYDIR%\Scripts\jupyter.exe" server extension enable nteract_on_jupyter
   
   
   rem * ==================
  -echo finish install of Voila (2019-07-21)
  +echo finish install of nteract_on_jupyter (2018-12-27)
   rem * ================= 
  -if exist  "%WINPYDIR%\Lib\site-packages\voila" "%WINPYDIR%\Scripts\jupyter.exe" serverextension enable voila --sys-prefix
  -if exist  "%WINPYDIR%\Lib\site-packages\voila" "%WINPYDIR%\Scripts\jupyter.exe" server extension enable voila --sys-prefix
  +if exist  "%WINPYDIR%\Lib\site-packages\nteract_on_jupyter" "%WINPYDIR%\Scripts\jupyter.exe" serverextension enable nteract_on_jupyter
  +if exist  "%WINPYDIR%\Lib\site-packages\nteract_on_jupyter" "%WINPYDIR%\Scripts\jupyter.exe" server extension enable nteract_on_jupyter
   
   
   
  
positive.code: rem 2021-03-13: notebook classic stuff removal
  rem 2021-05-23: use "%PYTHON%" for the executable instead of "%WINPYDIR%\python.exe"
  rem 2021-11-12: patch numba restrictor
  
  
  rem if build error, launch "WinPython Command Prompt.exe" dos ico, then try manual install of requirements.txt 
  rem that is:  pip install --pre  --no-index --trusted-host=None --find-links=C:\WinP\packages.srcreq -c C:\WinP\constraints.txt -r   C:\WinP\bd39\requirements_test.txt Qt5_requirements64.txt Cod_requirements64.txt
  rem python -m pip freeze>C:\WinP\bd39\req_test150.txt between intermediate steps
  
negative.code:    "%PYTHON%" -c "from winpython.utils import patch_sourcefile;patch_sourcefile(r%this_source%, 'read_text()', 'read_text(encoding='+chr(39)+'utf-8'+chr(39)+')' )"
     "%PYTHON%" -c "from winpython.utils import patch_sourcefile;patch_sourcefile(r%this_source%, 'join(self.lines))', 'join(self.lines), encoding='+chr(39)+'utf-8'+chr(39)+')' )"
  ) 
  
  
  rem * ===========================
  rem 2022-10-19 patch cpython bug https://github.com/winpython/winpython/issues/1121
  rem * ===========================
  set qt56p=%WINPYDIR%\Lib\idlelib\macosx.py
  if exist  "%qt56p%" (
    "%PYTHON%" -c "from winpython.utils import patch_sourcefile;patch_sourcefile(r'%WINPYDIR%\Lib\idlelib\macosx.py', 'from test.support ', '#stonebig  patch cpython/pull/98313/files:  from test.support' )"
    echo "DID I patch numba%??"
  ) else (
    echo "I DIDN'T patch of numba !"
  )
  
  rem * ===========================
  rem 2021-11-12: patch numba-0.54.1 restrictor
  