Initial checkin - note that in this state, it's producing an ipython

tb failure.

Use this as a test case to fix the ultratb bug.

nb2html.py

@@ -0,0 +1,186 b''
+#!/usr/bin/env python
+"""A really simple notebook to rst/html exporter.
+
+Usage
+
+  ./nb2html.py file.ipynb
+
+Produces 'file.rst' and 'file.html', along with auto-generated figure files
+called nb_figure_NN.png.
+
+"""
+
+import os
+import subprocess
+import sys
+
+from IPython.nbformat import current as nbformat
+from IPython.utils.text import wrap_paragraphs, indent
+
+
+# Cell converters
+
+def unknown_cell(cell):
+    """Default converter for cells of unknown type.
+    """
+
+    return [rst_directive('.. warning:: Unknown cell'),
+            repr(cell)]
+
+def markdown_cell(cell):
+    """convert a markdown cell to rst
+
+    Returns list."""
+    return [cell.source]
+
+
+def rst_directive(directive, text):
+    return [directive, '', indent(text), '']
+
+def code_cell(cell):
+    """Convert a code cell to rst
+
+    Returns list."""
+
+    if not cell.input:
+        return []
+
+    lines = ['In[%s]:' % cell.prompt_number, '']
+    lines.extend(rst_directive('.. code:: python', cell.input))
+    
+    for output in cell.outputs:
+        conv = converters[output.output_type]
+        lines.extend(conv(output))
+
+    return lines
+
+# Converters for parts of a cell.
+figures_counter = 1
+
+def out_display(output):
+    """convert display data from the output of a code cell to rst.
+
+    Returns list.
+    """
+    global figures_counter
+
+    lines = []
+
+    if 'png' in output:
+        fname = 'nb_figure_%s.png' % figures_counter
+        with open(fname, 'w') as f:
+            f.write(output.png.decode('base64'))
+
+        figures_counter += 1
+        lines.append('.. image:: %s' % fname)
+        lines.append('')
+    
+    return lines
+
+    
+def out_pyout(output):
+    """convert pyout part of a code cell to rst
+
+    Returns list."""
+
+    lines = ['Out[%s]:' % output.prompt_number, '']
+    
+    if 'latex' in output:
+        lines.extend(rst_directive('.. math::', output.latex))
+
+    if 'text' in output:
+        lines.extend(rst_directive('.. parsed-literal::', output.text))
+
+    return lines
+
+
+converters = dict(code = code_cell,
+                  markdown = markdown_cell,
+                  pyout = out_pyout,
+                  display_data = out_display,
+    )
+
+
+
+def convert_notebook(nb):
+    lines = []
+    for cell in nb.worksheets[0].cells:
+        conv = converters.get(cell.cell_type, unknown_cell)
+        lines.extend(conv(cell))
+        lines.append('')
+                
+    return '\n'.join(lines)
+
+
+def nb2rst(fname):
+    "Convert notebook to rst"
+    
+    with open(fname) as f:
+        nb = nbformat.read(f, 'json')
+
+    rst = convert_notebook(nb)
+
+    newfname = os.path.splitext(fname)[0] + '.rst'
+    with open(newfname, 'w') as f:
+        f.write(rst.encode('utf8'))
+
+    return newfname
+
+
+def rst2simplehtml(fname):
+    """Convert a rst file to simplified html suitable for blogger.
+
+    This just runs rst2html with certain parameters to produce really simple
+    html and strips the document header, so the resulting file can be easily
+    pasted into a blogger edit window.
+    """
+
+    # This is the template for the rst2html call that produces the cleanest,
+    # simplest html I could find.  This should help in making it easier to
+    # paste into the blogspot html window, though I'm still having problems
+    # with linebreaks there...
+    cmd_template = ("rst2html --link-stylesheet --no-xml-declaration "
+                    "--no-generator --no-datestamp --no-source-link "
+                    "--no-toc-backlinks --no-section-numbering "
+                    "--strip-comments ")
+
+    cmd = "%s %s" % (cmd_template, fname)
+    proc = subprocess.Popen(cmd,
+                            stdout=subprocess.PIPE,
+                            stderr=subprocess.PIPE,
+                            shell=True)
+    html, stderr = proc.communicate()
+    if stderr:
+        raise IOError(stderr)
+
+    # Make an iterator so breaking out holds state.  Our implementation of
+    # searching for the html body below is basically a trivial little state
+    # machine, so we need this.
+    walker = iter(html.splitlines())
+
+    # Find start of main text, break out to then print until we find end /div.
+    # This may only work if there's a real title defined so we get a 'div class'
+    # tag, I haven't really tried.
+    for line in walker:
+        if line.startswith('<div class'):
+            break
+
+    newfname = os.path.splitext(fname)[0] + '.html'
+    with open(newfname, 'w') as f:
+        for line in walker:
+            if line.startswith('</div>'):
+                break
+            f.write(line)
+            f.write('\n')
+            
+    return newfname
+
+
+def main(fname):
+    """Convert a notebook to html in one step"""
+    newfname = nb2rst(fname)
+    rst2simplehtml(newfname)
+
+
+if __name__ == '__main__':
+    main(sys.argv[1])

test.ipynb

@@ -0,0 +1,147 b''
+{
+ "metadata": {
+  "name": "test"
+ },
+ "nbformat": 3,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "source": [
+      "H1"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "source": [
+      "H2"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 3,
+     "source": [
+      "H3"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 4,
+     "source": [
+      "H4"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 5,
+     "source": [
+      "H5"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 6,
+     "source": [
+      "H6"
+     ]
+    },
+    {
+     "cell_type": "markdown",
+     "source": [
+      "A section heading",
+      "=================",
+      "",
+      "A bit of text, with *important things*:",
+      "",
+      "* and",
+      "* more",
+      "",
+      "Using reST links to `ipython <http://ipython.org>`_."
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "f = figure()",
+      "plot([1])",
+      "display(f)"
+     ],
+     "language": "python",
+     "outputs": [
+      {
+       "output_type": "display_data",
+       "png": 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DoRAlAAAeIhLXzpBTQF/P2VdUVKihoUGlpaVyuVzt1mlpadGdO3d0+/Ztbdq0SdOmTQuO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\nAABLEQAAYCkCAAAs9X/vh7DYicSaVQAAAABJRU5ErkJggg==\n",
+       "text": [
+        "<matplotlib.figure.Figure at 0x28f2750>"
+       ]
+      },
+      {
+       "output_type": "display_data",
+       "png": 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+      }
+     ],
+     "prompt_number": 1
+    },
+    {
+     "cell_type": "code",
+     "collapsed": true,
+     "input": [
+      "# multiline input",
+      "x = 1",
+      "y = 2"
+     ],
+     "language": "python",
+     "outputs": [],
+     "prompt_number": 2
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "1+2"
+     ],
+     "language": "python",
+     "outputs": [
+      {
+       "output_type": "pyout",
+       "prompt_number": 3,
+       "text": [
+        "3"
+       ]
+      }
+     ],
+     "prompt_number": 3
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "print 'hello world'"
+     ],
+     "language": "python",
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "hello world"
+       ]
+      }
+     ],
+     "prompt_number": 4
+    },
+    {
+     "cell_type": "code",
+     "collapsed": true,
+     "input": [],
+     "language": "python",
+     "outputs": []
+    }
+   ]
+  }
+ ]
+}
  No newline at end of file