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#!/usr/bin/env python
# This script takes an ipython notebook as an argument and rewrites the file
# with metadata stripped to make change tracking with git easier.
import sys
import json
import os
import shutil
infile = sys.argv[1]
if not os.path.exists(infile):
sys.exit("command line argument must be an existing filename")
tempfile = infile + ".tmp"
with open(infile, "r") as fh:
json_in = json.load(fh)
nb_metadata = json_in["metadata"]
def strip_output_from_cell(cell):
if "outputs" in cell:
cell["outputs"] = []
if "execution_count" in cell:
cell["execution_count"] = None
for cell in json_in["cells"]:
strip_output_from_cell(cell)
with open(tempfile, "w") as fh:
json.dump(json_in, fh, sort_keys=True, indent=1, separators=(",", ": "))
shutil.move(tempfile, infile)
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