anchor.diff:  if not exist "%WINPYDIR%\Lib\site-packages\mingwpy" echo [config]>%pydistutils_cfg%
   
   
  +rem * ==================
  +echo finish install of bqplot (for VSCode 2021-03-13)
  +rem * =================
  +if exist  "%WINPYDIR%\Lib\site-packages\bqplot" "%WINPYDIR%\Scripts\jupyter.exe" nbextension enable --py --sys-prefix bqplot
   
  -@echo off
  -rem * ===========================
  -echo finish install of jupyterlab
  -rem * ===========================
  -
  -rem 2020-04-10 security
  -rem if exist  "%WINPYDIR%\Lib\site-packages\jupyterlab"  "%WINPYDIR%\..\n\npm" config set ignore-scripts true
  -
  -rem other suggestion from https://github.com/nteract/nteract
  -rem npm install -g --production windows-build-tools
  -
  -
  -@echo on
  -rem * ===================
  -echo jupyterlab pre-clean meaningless in 3.0
  -rem * ==================
  -@echo off
  -rem pre-clean Whatever jupyterlab version
  -rem if exist  "%WINPYDIR%\Lib\site-packages\jupyterlab"  "%WINPYDIR%\Scripts\jupyter.exe" lab clean
  -
  -
  -rem * ==================
  -echo finish install of ipydatawidgets (2018-03-10)
  -rem * ================= 
  -if exist  "%WINPYDIR%\Lib\site-packages\ipydatawidgets" "%WINPYDIR%\Scripts\jupyter.exe" nbextension install --py --sys-prefix  ipydatawidgets
  -if exist  "%WINPYDIR%\Lib\site-packages\ipydatawidgets" "%WINPYDIR%\Scripts\jupyter.exe" nbextension enable --py  --sys-prefix  ipydatawidgets
  -
  -
  -rem * ==================
  -echo finish install of ipyvolume / ipywebrtc
  -rem * =================
  -if exist  "%WINPYDIR%\Lib\site-packages\ipywebrtc" "%WINPYDIR%\Scripts\jupyter.exe" nbextension enable --py  --sys-prefix  ipywebrtc
  -if exist  "%WINPYDIR%\Lib\site-packages\ipyvolume" "%WINPYDIR%\Scripts\jupyter.exe" nbextension enable --py  --sys-prefix  ipyvolume
  -
  -
  -rem * ==================
  -echo finish install of pdvega
  -rem * =================
  -if exist  "%WINPYDIR%\Lib\site-packages\vega3" "%WINPYDIR%\Scripts\jupyter.exe" nbextension enable --py --sys-prefix vega3
  -
  -
  -rem * ==================
  -echo finish install of rise
  -rem * =================
  -if exist  "%WINPYDIR%\Lib\site-packages\rise" "%WINPYDIR%\Scripts\jupyter.exe" nbextension install rise --py --sys-prefix
  -if exist  "%WINPYDIR%\Lib\site-packages\rise" "%WINPYDIR%\Scripts\jupyter.exe" nbextension enable --py --sys-prefix rise 
  -
  -
  +						 
   rem * ==================
   echo finish install of nteract_on_jupyter (2018-12-27)
   rem * ================= 
  
positive.code: echo clear jupyterlab staging (2018-03-09)
  rem * ===================
  if exist "%WINPYDIR%\share\jupyter\lab\staging" rmdir /S /Q "%WINPYDIR%\share\jupyter\lab\staging"
  
  
  rem * ===================
  echo clear Pyside2 QML (2018-04-29 : it's too big)
  rem * ===================
  rem 20181222
  rem if exist  "%WINPYDIR%\Lib\site-packages\PySide2\qml"  rmdir /S /Q "%WINPYDIR%\Lib\site-packages\PySide2\qml"
  
  @echo on
  
  echo 2019-10-22 Spyder tweaks moved at the end as suspicion of problem creating (on Python-3.8)
  rem * ============================
  
negative.code: rem * ================= 
  if exist  "%WINPYDIR%\Lib\site-packages\voila" "%WINPYDIR%\Scripts\jupyter.exe" serverextension enable voila --sys-prefix
  
  
  rem * =================
  echo finish install seaborn iris example
  