From a925e26088919ddf815072881bd71b30c4ac3407 2014-06-03 22:32:53
From: Julia Evans <julia@stripe.com>
Date: 2014-06-03 22:32:53
Subject: [PATCH] Add IPython Notebook exporter

---

diff --git a/IPython/nbconvert/exporters/export.py b/IPython/nbconvert/exporters/export.py
index 62f909e..c3bbd84 100644
--- a/IPython/nbconvert/exporters/export.py
+++ b/IPython/nbconvert/exporters/export.py
@@ -18,6 +18,7 @@ from .pdf import PDFExporter
 from .markdown import MarkdownExporter
 from .python import PythonExporter
 from .rst import RSTExporter
+from .notebook import NotebookExporter
 
 #-----------------------------------------------------------------------------
 # Classes
@@ -130,6 +131,7 @@ exporter_map = dict(
     markdown=MarkdownExporter,
     python=PythonExporter,
     rst=RSTExporter,
+    notebook=NotebookExporter,
 )
 
 def _make_exporter(name, E):
diff --git a/IPython/nbconvert/exporters/notebook.py b/IPython/nbconvert/exporters/notebook.py
new file mode 100644
index 0000000..b20d7c4
--- /dev/null
+++ b/IPython/nbconvert/exporters/notebook.py
@@ -0,0 +1,36 @@
+"""IPython Notebook Exporter class"""
+
+#-----------------------------------------------------------------------------
+# Copyright (c) 2013, the IPython Development Team.
+#
+# Distributed under the terms of the Modified BSD License.
+#
+# The full license is in the file COPYING.txt, distributed with this software.
+#-----------------------------------------------------------------------------
+
+#-----------------------------------------------------------------------------
+# Imports
+#-----------------------------------------------------------------------------
+
+from .exporter import Exporter
+from IPython.nbformat import current as nbformat
+
+#-----------------------------------------------------------------------------
+# Classes
+#-----------------------------------------------------------------------------
+
+class NotebookExporter(Exporter):
+    """
+    Exports an IPython notebook.
+    """
+    def _file_extension_default(self):
+        return 'ipynb'
+
+    output_mimetype = 'application/json'
+
+    def from_notebook_node(self, nb, resources=None, **kw):
+        nb_copy, resources = super(NotebookExporter, self).from_notebook_node(nb, resources, **kw)
+        output = nbformat.writes_json(nb_copy)
+        return output, resources
+
+
diff --git a/IPython/nbconvert/exporters/tests/test_notebook.py b/IPython/nbconvert/exporters/tests/test_notebook.py
new file mode 100644
index 0000000..56d76c2
--- /dev/null
+++ b/IPython/nbconvert/exporters/tests/test_notebook.py
@@ -0,0 +1,45 @@
+"""
+Module with tests for notebook.py
+"""
+
+#-----------------------------------------------------------------------------
+# Copyright (c) 2013, the IPython Development Team.
+#
+# Distributed under the terms of the Modified BSD License.
+#
+# The full license is in the file COPYING.txt, distributed with this software.
+#-----------------------------------------------------------------------------
+
+#-----------------------------------------------------------------------------
+# Imports
+#-----------------------------------------------------------------------------
+
+from .base import ExportersTestsBase
+from ..notebook import NotebookExporter
+
+#-----------------------------------------------------------------------------
+# Class
+#-----------------------------------------------------------------------------
+
+class TestNotebookExporter(ExportersTestsBase):
+    """Contains test functions for notebook.py"""
+
+    exporter_class = NotebookExporter
+
+    def test_constructor(self):
+        """
+        Can a NotebookExporter be constructed?
+        """
+        NotebookExporter()
+
+
+    def test_export(self):
+        """
+        Does the NotebookExporter return the file unchanged?
+        """
+        with open(self._get_notebook()) as f:
+            file_contents = f.read()
+        (output, resources) = NotebookExporter().from_filename(self._get_notebook())
+        assert len(output) > 0
+        assert output == file_contents
+