Add encoding declaration to test for notebook -> .py export.

IPython/nbformat/v2/tests/nbexamples.py

@@ -1,108 +1,109 b''
 import os
 from base64 import encodestring
 
 from ..nbbase import (
     NotebookNode,
     new_code_cell, new_text_cell, new_worksheet, new_notebook, new_output,
     new_metadata, new_author
 )
 
 # some random base64-encoded *bytes*
 png = encodestring(os.urandom(5))
 jpeg = encodestring(os.urandom(6))
 
 ws = new_worksheet(name='worksheet1')
 
 ws.cells.append(new_text_cell(
     u'html',
     source='Some NumPy Examples',
     rendered='Some NumPy Examples'
 ))
 
 
 ws.cells.append(new_code_cell(
     input='import numpy',
     prompt_number=1,
     collapsed=False
 ))
 
 ws.cells.append(new_text_cell(
     u'markdown',
     source='A random array',
     rendered='A random array'
 ))
 
 ws.cells.append(new_code_cell(
     input='a = numpy.random.rand(100)',
     prompt_number=2,
     collapsed=True
 ))
 
 ws.cells.append(new_code_cell(
     input='print a',
     prompt_number=3,
     collapsed=False,
     outputs=[new_output(
         output_type=u'pyout',
         output_text=u'<array a>',
         output_html=u'The HTML rep',
         output_latex=u'$a$',
         output_png=png,
         output_jpeg=jpeg,
         output_svg=u'<svg>',
         output_json=u'json data',
         output_javascript=u'var i=0;',
         prompt_number=3
     ),new_output(
         output_type=u'display_data',
         output_text=u'<array a>',
         output_html=u'The HTML rep',
         output_latex=u'$a$',
         output_png=png,
         output_jpeg=jpeg,
         output_svg=u'<svg>',
         output_json=u'json data',
         output_javascript=u'var i=0;'
     ),new_output(
         output_type=u'pyerr',
         etype=u'NameError',
         evalue=u'NameError was here',
         traceback=[u'frame 0', u'frame 1', u'frame 2']
     )]
 ))
 
 authors = [new_author(name='Bart Simpson',email='[e-mail]',
            affiliation=u'Fox',url=u'http://www.fox.com')]
 md = new_metadata(name=u'My Notebook',license=u'BSD',created=u'8601_goes_here',
     modified=u'8601_goes_here',gistid=u'21341231',authors=authors)
 
 nb0 = new_notebook(
     worksheets=[ws, new_worksheet(name='worksheet2')],
     metadata=md
 )
 
-nb0_py = """# <nbformat>2</nbformat>
+nb0_py = """# coding: utf-8
+# <nbformat>2</nbformat>
 
 # <htmlcell>
 
 # Some NumPy Examples
 
 # <codecell>
 
 import numpy
 
 # <markdowncell>
 
 # A random array
 
 # <codecell>
 
 a = numpy.random.rand(100)
 
 # <codecell>
 
 print a
 
 """