scraper dockerfile with jupyter pre- and post-save hooks

Dockerfile

FROM jupyter/scipy-notebook:latest
MAINTAINER MERELDA WU

USER root

RUN apt-get update && apt-get install -y vim

RUN pip install --upgrade pip notebook
RUN conda install -c conda-forge -y jupyter_contrib_nbextensions 
RUN jupyter contrib nbextension install --user && \
jupyter nbextensions_configurator enable --user

RUN pip install googlemaps mysql-connector-python urllib3 xmltodict bs4 python-dotenv pylint

RUN jupyter nbextension enable init_cell/main
RUN jupyter nbextension enable highlighter/highlighter 
RUN jupyter nbextension enable rubberband/main 
RUN jupyter nbextension enable snippets/main 
RUN jupyter nbextension enable toc2/main 
RUN jupyter nbextension enable varInspector/main 

RUN echo "\n\
import os\n\
from subprocess import check_call\n\
\n\
c = get_config()\n\
\n\
def post_save(model, os_path, contents_manager):\n\
    if model['type'] != 'notebook':\n\
        return # only do this for notebooks\n\
    d, fname = os.path.split(os_path)\n\
    check_call(['ipython', 'nbconvert', '--to', 'script', fname], cwd=d)\n\
\n\
c.FileContentsManager.post_save_hook = post_save" >> /home/jovyan/.jupyter/jupyter_notebook_config.py