Map Reduce for Notebooks
Project description
Papermill is a tool for parameterizing, executing, and analyzing Jupyter Notebooks.
The goals for Papermill are:
Parametrizing notebooks
Executing and collecting metrics across the notebooks
Summarizing collections of notebooks
Installation
pip install papermill
In-Notebook bindings
Usage
Parameterizing a Notebook.
To parameterize your notebook designate a cell with the tag parameters. Papermill looks for the parameters cell and replaces those values with the parameters passed in at execution time.
Executing a Notebook
The two ways to execute the notebook with parameters are through the Python API and through the command line interface.
Executing a Notebook via Python API
import papermill as pm
pm.execute_notebook(
notebook_path='path/to/input.ipynb',
output_path='path/to/output.ipynb',
parameters=dict(alpha=0.6, ratio=0.1)
)Executing a Notebook via CLI
$ papermill local/input.ipynb s3://bkt/output.ipynb -p alpha 0.6 -p l1_ratio 0.1Recording Values to the Notebook
Users can save values to the notebook document to be consumed by other notebooks.
Recording values to be saved with the notebook.
### notebook.ipynb
import papermill as pm
pm.record("hello", "world")
pm.record("number", 123)
pm.record("some_list", [1,3,5])
pm.record("some_dict", {"a":1, "b":2})Users can recover those values as a Pandas dataframe via the the read_notebook function.
### summary.ipynb
import papermill as pm
nb = pm.read_notebook('notebook.ipynb')
nb.dataframe
Displaying Plots and Images Saved by Other Notebooks
Display a matplotlib histogram with the key name “matplotlib_hist”.
### notebook.ipynb
# Import plt and turn off interactive plotting to avoid double plotting.
import papermill as pm
import matplotlib.pyplot as plt; plt.ioff()
from ggplot import mpg
f = plt.figure()
plt.hist('cty', bins=12, data=mpg)
pm.display('matplotlib_hist', f)
Read in that above notebook and display the plot saved at “matplotlib_hist”.
### summary.ipynb
import papermill as pm
nb = pm.read_notebook('notebook.ipynb')
nb.display_output('matplotlib_hist')Analyzing a Collection of Notebooks
Papermill can read in a directory of notebooks and provides the NotebookCollection interface for operating on them.
### summary.ipynb
import papermill as pm
nbs = pm.read_notebooks('/path/to/results/')
# Show named plot from 'notebook1.ipynb'
# Accepts a key or list of keys to plot in order.
nbs.display_output('train_1.ipynb', 'matplotlib_hist')# Dataframe for all notebooks in collection
nbs.dataframe.head(10)
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