nbconvert --to script

Use extension and mime type from NB metadata

IPython/nbconvert/exporters/script.py

@@ -0,0 +1,14 b''
+"""Generic script exporter class for any kernel language"""
+
+from .templateexporter import TemplateExporter
+
+class ScriptExporter(TemplateExporter):
+    def _template_file_default(self):
+        return 'script'
+
+    def from_notebook_node(self, nb, resources=None, **kw):
+        langinfo = nb.metadata.get('language_info', {})
+        self.file_extension = langinfo.get('file_extension', 'txt')
+        self.output_mimetype = langinfo.get('mimetype', 'text/plain')
+
+        return super(ScriptExporter, self).from_notebook_node(nb, resources, **kw)

IPython/nbconvert/templates/script.tpl

@@ -0,0 +1,5 b''
+{%- extends 'null.tpl' -%}
+
+{% block input %}
+{{ cell.source }}
+{% endblock input %}

IPython/nbconvert/exporters/export.py

@@ -19,6 +19,7 b' from .markdown import MarkdownExporter'
 from .python import PythonExporter
 from .rst import RSTExporter
 from .notebook import NotebookExporter
+from .script import ScriptExporter
 
 #-----------------------------------------------------------------------------
 # Classes
@@ -74,6 +75,7 b' __all__ = ['
     'export_pdf',
     'export_markdown',
     'export_python',
+    'export_script',
     'export_rst',
     'export_by_name',
     'get_export_names',
@@ -132,6 +134,7 b' exporter_map = dict('
     python=PythonExporter,
     rst=RSTExporter,
     notebook=NotebookExporter,
+    script=ScriptExporter,
 )
 
 def _make_exporter(name, E):