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Re-run a notebook substituting input parameters in the first cell.

Project description

This is a tool to run notebooks with input values. When you write the notebook, these are defined in the first code cell, with regular assignments like this:

stock = 'YHOO'
days_back = 600

Nbparameterise handles finding and extracting these parameters, and replacing them with input values. You can then run the notebook with the new values. This can be used for:

  • Batch processing: run the same code on a list of different inputs. See examples/batch.py.
  • Simple user interfaces: build an input form based on the parameters, and run the notebook when the user submits the form. See examples/webapp.py for an implementation of this with an HTML form.

Extra information about the parameters, such as names to display in a user interface, can be stored in notebook metadata.

Nbparameterise is written in Python 3, but it can handle notebooks that use Python 2.

Usage:

import nbformat
from nbparameterise import (
    extract_parameters, replace_definitions, parameter_values
)

with open("Stock display.ipynb") as f:
    nb = nbformat.read(f, as_version=4)

# Get a list of Parameter objects
orig_parameters = extract_parameters(nb)

# Update one or more parameters
params = parameter_values(orig_parameters, stock='GOOG')

# Make a notebook object with these definitions, and execute it.
new_nb = replace_definitions(nb, params)

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nbparameterise-0.3-py3-none-any.whl (8.3 kB) Copy SHA256 hash SHA256 Wheel py3 Apr 18, 2018
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