How do I convert a IPython Notebook into a Python file via commandline?

Question

I\'m looking at using the *.ipynb files as the source of truth and programmatically \'compiling\' them into .py files for scheduled jobs/tasks.

The

Answer 1

The following example turns an Iron Python Notebook called a_notebook.ipynb into a python script called a_python_script.py leaving out the cells tagged with the keyword remove, which I add manually to the cells that I don't want to end up in the script, leaving out visualizations and other steps that once I am done with the notebook I don't need to be executed by the script.

import nbformat as nbf
from nbconvert.exporters import PythonExporter
from nbconvert.preprocessors import TagRemovePreprocessor

with open("a_notebook.ipynb", 'r', encoding='utf-8') as f:
    the_notebook_nodes = nbf.read(f, as_version = 4)

trp = TagRemovePreprocessor()

trp.remove_cell_tags = ("remove",)

pexp = PythonExporter()

pexp.register_preprocessor(trp, enabled= True)

the_python_script, meta = pexp.from_notebook_node(the_notebook_nodes)

with open("a_python_script.py", 'w') as f:
    f.writelines(the_python_script)