Shim IPython.nbformat so tests pass again

IPython/nbformat.py

@@ -0,0 +1,22 b''
+"""
+Shim to maintain backwards compatibility with old IPython.nbformat imports.
+"""
+# Copyright (c) IPython Development Team.
+# Distributed under the terms of the Modified BSD License.
+
+from __future__ import print_function
+
+# Stdlib
+import sys
+import types
+from warnings import warn
+
+warn("The `IPython.nbformat` package has been deprecated. "
+     "You should import from jupyter_nbformat instead.")
+
+from IPython.utils.shimmodule import ShimModule
+
+# Unconditionally insert the shim into sys.modules so that further import calls
+# trigger the custom attribute access above
+
+sys.modules['IPython.nbformat'] = ShimModule('nbformat', mirror='jupyter_nbformat')

jupyter_nbformat/tests/base.py

@@ -30,13 +30,4 b' class TestsBase(unittest.TestCase):'
 
 
     def _get_files_path(self):
-
-        #Get the relative path to this module in the IPython directory.
-        names = self.__module__.split(u'.')[1:-1]
-        
-        #Build a path using the IPython directory and the relative path we just
-        #found.
-        path = IPython.__path__[0]
-        for name in names:
-            path = os.path.join(path, name)
-        return path
+        return os.path.dirname(__file__)

jupyter_nbformat/v3/convert.py

@@ -8,7 +8,7 b' from .nbbase import ('
     nbformat, nbformat_minor
 )
 
-from IPython.nbformat import v2
+from jupyter_nbformat import v2
 
 def _unbytes(obj):
     """There should be no bytes objects in a notebook

jupyter_nbformat/v4/convert.py

@@ -11,7 +11,7 b' from .nbbase import ('
     NotebookNode,
 )
 
-from IPython.nbformat import v3
+from jupyter_nbformat import v3
 from IPython.utils.log import get_logger
 
 def _warn_if_invalid(nb, version):

setupbase.py

@@ -196,11 +196,11 b' def find_package_data():'
                 'preprocessors/tests/files/*.*',
             ],
         'IPython.nbconvert.filters' : ['marked.js'],
-        'IPython.nbformat' : [
-            'tests/*.ipynb',
-            'v3/nbformat.v3.schema.json',
-            'v4/nbformat.v4.schema.json',
-            ],
+        # 'IPython.nbformat' : [
+        #     'tests/*.ipynb',
+        #     'v3/nbformat.v3.schema.json',
+        #     'v4/nbformat.v4.schema.json',
+        #     ],
         'IPython.kernel': ['resources/*.*'],
     }