#!/usr/bin/env python
# coding: utf-8

# # Creating command line scripts from a notebook
# 
# With the `importnb` extension installed by default IPython can run notebooks as modules.  The notebook can be a great interactive interface for develiping applications.

# ## [Click](http://click.pocoo.org) command line library

# In[1]:


import click


# ## [A simple example](http://click.pocoo.org/5/commands/)

# In[2]:


@click.group()
@click.option('--debug/--no-debug', default=False)
def cli(debug):
    click.echo('Debug mode is %s' % ('on' if debug else 'off'))

@cli.command()
def sync():
    click.echo('Synching')


# ## Running the application
# 
# The command line application will be run in the __main__ context and it will have a __file__ attribute.  Otherwise, we test the function on the command line.  We must use IPython and know that our `importnb` loaders and included.

# In[2]:


if globals().get('__file__', None) and __name__ == '__main__': 
    cli()

def _demonstrate_click_parser_for_a_notebook():
    from IPython import get_ipython
    get_ipython().system('ipython -m deathbeds.2018-07-15-click-arguments-from-a-notebook -- --debug sync')


# In[ ]: