"""Python script 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 .templateexporter import TemplateExporter

#-----------------------------------------------------------------------------
# Classes
#-----------------------------------------------------------------------------

class PythonExporter(TemplateExporter):
    """
    Exports a Python code file.
    """
    def _file_extension_default(self):
        return 'py'

    def _template_file_default(self):
        return 'python'

    output_mimetype = 'text/x-python'

@@ -911,16 +911,17 @@
 return '
+.
 py'%0A%0A   

Add the . into file_extension