anchor.diff:  goto the_end
   
   
  -
   :the_end
positive.code: if not exist "%WINPYDIR%\Lib\site-packages\mingwpy" echo [config]>%pydistutils_cfg%
  
  
  
  @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 * ================= 
  
negative.code: rem 2020-09-27 Jupyterlab-3 5S (looking for missing detail) 
  rem 2020-10-25no_more_needed "nbextension enable" no more needed for bqplot, ipyleaflet, ipympl
  rem 2021-01-30: jupyterlab2 final stuff removal
  rem 2021-03-13: notebook classic stuff removal
  
  
  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
  rem 
  rem           ( drag & drop "requirements.txt" file in the dos window a the end of the line, to get full path)
  rem then drag & drop "run_complement_newbuild.bat" file in the dos window and launch it
  
  