File: nbformat.py

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"""
Shim to maintain backwards compatibility with old IPython.nbformat imports.
"""
# Copyright (c) IPython Development Team.
# Distributed under the terms of the Modified BSD License.

import sys
from warnings import warn

from IPython.utils.shimmodule import ShimModule, ShimWarning

warn("The `IPython.nbformat` package has been deprecated. "
     "You should import from nbformat instead.", ShimWarning)

# Unconditionally insert the shim into sys.modules so that further import calls
# trigger the custom attribute access above

sys.modules['IPython.nbformat'] = ShimModule(
    src='IPython.nbformat', mirror='nbformat')